Warmly Alternatives – Top AI SDR Platforms Reshaping Outbound Sales in 2025

Major Takeaways: Warmly Alternatives

Which AI SDR platform offloads the most outbound tasks?

• Martal Group offloads up to 80% of SDR tasks, combining AI outreach with human sales expertise to automate prospecting, sequencing, follow-ups, and meeting booking.

How does multichannel outreach impact engagement?

• Platforms offering email, LinkedIn, and phone outreach in one sequence can triple response rates, outperforming single-channel efforts by up to 3× in recent studies.

What role does AI play in personalization at scale?

• Leading platforms now use GPT-level models to auto-generate personalized messaging, boosting email open rates by 50% compared to non-personalized campaigns.

Why is integrated data crucial for outbound success?

• AI SDR tools with built-in databases or enriched data integrations save up to 27% of SDR time and improve lead quality by targeting in-market buyers more accurately.

What’s the difference between Warmly and newer platforms?

• While Warmly excels at intent-based engagement, many alternatives focus on cold outbound, using AI agents to initiate contact even without prior buyer signals.

How are modern tools improving campaign performance over time?

• AI SDR platforms increasingly offer auto-optimization features that adjust cadence timing, content, and channels based on live performance data and conversion signals.

Who benefits most from fully managed vs. self-serve platforms?

• Mid-size to enterprise teams without internal SDR capacity benefit from managed platforms like Martal, while startups may prefer self-serve AI tools with guided setup.
  

Introduction

AI sales development reps (SDRs) are changing the game. Intelligent outbound platforms can now shoulder up to 80% of a human SDR’s tasks, from prospecting to follow-ups (1). 

They work faster and for a fraction of the cost – one study found an AI SDR platform (at ~$200–$800/month) can handle the workload of 3–5 reps, who might cost $75K+ each annually (10)

 It’s no surprise that 82% of organizations plan to integrate AI agents into sales in the next 1–3 years (2). If you’re investigating Warmly alternatives in this space, you’re likely looking for similar AI-driven outbound power with a better fit for your needs.

Why consider Warmly alternatives? 

Warmly is an all-in-one intent-led outbound platform that identifies “warm” prospects (using web visitor tracking, intent data, and CRM triggers) and engages them via automated emails, LinkedIn touches, and even real-time website chat. 

It’s a powerful approach for leveraging in-market buyers – users report qualifying leads 10× faster with Warmly’s real-time alerts and follow-ups (11). However, Warmly isn’t the only player in AI sales automation. 

Perhaps you need broader cold outreach beyond intent-based business leads, more hands-on services, different pricing, or specific features like AI content writing or voice calls. Maybe you want an omnichannel sales partner that not only deploys AI agents but also brings human expertise in cold calling, lead research, and campaign strategy. In 2025, new AI SDR platforms are emerging to fill these gaps, each with their own strengths.

In this post, we’ll compare several lesser-known AI SDR platforms reshaping outbound sales. Each of these can be seen as Warmly alternatives – offering smart automation to book meetings and build pipeline – but with unique twists. 

We start with Martal Group’s solution, which tops the list by combining a proprietary AI outreach system with seasoned sales talent. We’ll then explore other innovative platforms (many born in the last couple years) that are changing how B2B teams prospect. From fully autonomous SDR agents to AI “co-pilots” that assist your human reps, these tools are helping teams generate more opportunities with less manual grunt work. Let’s dive in!

What to Look for in an AI SDR Platform (Key Criteria)

27% of an SDR’s time is lost due to bad data, making integrated lead intelligence critical to outbound performance.

Reference Source: Martal Group

Before jumping into the lineup, it helps to know the criteria for evaluating a Warmly alternative. The best AI-driven outbound platforms tend to share a few core capabilities:

• Multichannel Outreach Automation: Top tools coordinate email, LinkedIn, calls, SMS and more in one sequence. Engaging prospects across 3+ channels can boost response rates up to 3× compared to single-channel outreach (4). 

Warmly, for example, orchestrates emails and LinkedIn touches when intent signals spike. Alternatives should also deliver omnichannel sales cadence to meet prospects wherever they engage (10).

• Integrated Data and Lead Intelligence: Data quality is paramount – bad data wastes about 27% of an SDR’s time (3). Look for platforms with built-in lead databases or deep integrations (ZoomInfo, Apollo, etc.) to feed your campaigns with verified contacts and intent signals. 

Many alternatives bring their own massive data engines or partner with data providers to auto-enrich leads, so your team isn’t stuck researching emails or hitting dead ends.

• AI Personalization & Messaging: Writing personalized outreach at scale is where AI shines. These platforms use GPT-4 style copy generators and intent-based personalization to make each professional email or LinkedIn message feel hand-written. (In fact, one study found AI-personalized emails lifted open rates by 50% over generic blasts (10).) 

Good alternatives will dynamically tailor messaging to each prospect’s context – often learning your brand voice over time.

• Task Automation & Workflow Integration: A true AI SDR platform should eliminate as much busywork as possible: sequencing follow-ups, logging activities to CRM, booking meetings, etc. 

Many SDRs today juggle 10+ tools, and ~70% feel overwhelmed by app overload (5). The right platform consolidates these functions. It might also integrate with your CRM for seamless handoff (e.g. auto-creating tasks/opps when a lead replies). The goal is to shrink your sales stack and let reps focus on high-value conversations, not admin chores.

• Analytics and Optimization: Finally, look for reporting and AI-driven insights. Which subject lines get the highest reply rate? Which sequences convert best? 

AI SDR platforms should track performance across campaigns and even auto-adjust based on what’s working (e.g. send time optimization, channel switching if email goes cold, etc.). Some tools include coaching insights – like AI that monitors call or email interactions and suggests improvements on the fly. Robust analytics ensure your outbound gets smarter over time.

With these factors in mind, let’s examine some of the leading AI SDR solutions beyond Warmly.  Each of the following platforms meets these criteria in different ways. We’ll look at standalone software platforms ranging from autonomous AI “agents” to hybrid assistive tools.

Top Warmly Alternatives: 7+ AI SDR Platforms to Watch (2025 Edition)

1. Martal Group – Database-Driven Omnichannel AI SDR Platform (80% Task Automation)

Martal clients experience 4–7× higher campaign conversions by combining AI outreach with human SDR execution.

Reference Source: Martal AI SDR Platform

Can one platform replace the 12 different tools an SDR uses daily? Martal Group’s AI-driven outbound platform aims to do exactly that. Martal is an established outsourced sales company that has built its own all-in-one AI SDR platform to turbocharge outbound lead generation. 

The result is a database-driven, omnichannel sales automation system that offloads up to 80% of your SDRs’ manual workload (6). Instead of your reps piecing together prospect lists, sending cold emails, following up on LinkedIn, and making dials across separate apps, Martal’s platform handles those tasks in one unified workflow – overseen by Martal’s experienced team.

💡 Martal’s AI SDR replaces the typical SDR tech stack. On average, sales dev reps juggle 10–12 different tools (CRM, email sequencer, LinkedIn, data sites, dialers, etc.), contributing to tool fatigue (6). 

Martal collapses that complexity into a single smart platform. It comes pre-loaded with a massive B2B contact database (over 220 million contacts and 10 million intent signals) and a “brain” built from 15+ years of sales data (6). 

Using its proprietary AI, the system identifies your ideal prospects, scrapes intent data and buying signals, and auto-generates personalized outreach across email, LinkedIn, and phone. Essentially, Martal provides AI sales agents that can run multi-touch campaigns 24/7, never get tired, and continuously learn from responses.

What truly sets Martal apart is the human layer behind the tech. When you partner with Martal, you not only get the AI platform but also a fractional SDR team (“Sales Executives on Demand”) who operate it for you. 

This team tunes the AI to your targeting criteria, crafts messaging aligned to your value proposition, and steps in when a human touch is needed (for example, handling complex lead responses or sales calls). It’s a hybrid approach: the AI does the heavy lifting of outbound prospecting and initial outreach, while Martal’s live SDRs focus on engaging warm, sales-ready leads and booking appointments on your calendar. 

This yields impressive results – Martal’s clients see 4–7× higher campaign conversions (responses and meetings) compared to traditional outbound efforts (6). 

The combination of intelligent automation with seasoned salespeople means more leads, faster sales pipeline growth, and none of the usual ramp-up pains on the client side.

Key features and benefits of Martal Group as a Warmly alternative:

• Omnichannel AI Outreach: Martal’s AI agents can seamlessly engage prospects via email, LinkedIn, and even phone calls in coordinated cadences (6). 

For example, the platform might auto-send a personalized email, follow up with a LinkedIn message if the email isn’t opened, and later trigger a cold call task – ensuring you touch prospects on multiple fronts. (By comparison, Warmly’s strength is web/email/LinkedIn; Martal covers those and adds live calling into the mix, leveraging its team for voice outreach.)

• Massive Data Engine: Martal pinpoints who to contact using a rich data engine. It taps intent signals (e.g. funding events, tech stack changes, web visits) to find in-market buyers, and it verifies emails/phone numbers automatically. 

You don’t need to purchase lists or integrate a separate data provider – Martal’s database is continuously updated. This data-driven approach means your campaigns focus on high-fit prospects at the right time (e.g. companies searching for solutions like yours). It directly addresses a top pain in outbound: wasting effort on bad leads.

• Hyper-Personalized Sequences: Martal’s platform uses AI to research each prospect and tailor outreach. It can pull tidbits like a prospect’s recent blog post or a news headline about their company, and insert that into an email opener to catch attention.

It also adapts messaging to different persona pain points. This level of personalization at scale boosts reply rates dramatically. (In fact, Martal cites that AI-driven personalization can increase engagement by up to 40% in digital outreach (1).) The AI writes the initial drafts, and Martal’s team reviews to ensure quality and brand voice. Every touch feels one-to-one, not a mass blast.

• Automated Workflow & CRM Integration: All those tedious tasks – sending follow-ups, logging calls, updating statuses – Martal automates them. The platform syncs with your CRM so that every contact touch and reply is tracked without reps doing data entry. 

It also manages technical steps like email domain warm-up and email deliverability protection behind the scenes (6). In short, Martal handles all your outbound for you. Your internal sales team simply shows up to qualified appointments or sales meetings that Martal books with interested prospects.

• Outsourced SDR Team with Training & Support: Unlike software-only providers, Martal wraps a service layer around the tech. They provide a fractional SDR team (available full-time or part-time as needed) who are trained in your industry. 

These reps act as an extension of your team. They refine campaign strategy, oversee the AI’s performance, and jump in to conduct phone outreach or multi-touch follow-ups when human nuance is required. 

Martal’s team essentially becomes your SDR function – but one supercharged by AI. This is ideal for companies who lack in-house bandwidth or expertise in outbound; Martal delivers both the brains (AI) and the brawn (skilled salespeople).

From a ROI standpoint, Martal Group offers a compelling alternative to Warmly. Warmly’s platform starts around $16K per year for the “Outbound Agent” package (11) (and that’s software-only). 

Martal’s solution, while custom-priced as a service, effectively gives you an AI platform + a dedicated SDR team. Companies that partner with Martal avoid the cost of hiring multiple SDRs and investing in a dozen tools – yet they gain a steady flow of qualified leads. 

According to Martal, clients ramp pipeline 3× faster while cutting outbound SDR costs up to 65% versus building an in-house program. For a CMO or sales leader seeking an end-to-end outbound engine, Martal is a turnkey choice. You get the advantage of advanced AI (scale, speed, data-driven targeting) and the assurance of human oversight and strategic guidance.

In summary, Martal Group’s AI SDR platform is an excellent Warmly alternative if you want more than just software. It’s a strategic partnership that delivers meetings on your calendar through omnichannel AI outreach, backed by real sales experts.

If your goals include things like cold calling prospects, running personalized cold email campaigns, boosting your LinkedIn outreach, or even training your team on AI-driven lead gen, Martal covers it all as part of its service. (Those are areas Warmly doesn’t directly handle – e.g. Warmly has no human callers or training services, whereas Martal does.) 

For tech companies looking to accelerate B2B sales in 2025, Martal Group provides a proven, AI-enhanced outbound solution with the resources to execute at scale. It’s the ideal way to scale your pipeline quickly without scaling your staff.

2. Persana AI – Autonomous SDR Agents with 1B+ Contact Database

If you’re looking for a pure tech platform that delivers an autonomous AI SDR, Persana AI is a cutting-edge option. Persana deploys AI “sales agents” that can prospect and even close deals (8). Their flagship AI SDR, named Nia, reportedly automates up to 90% of the sales development process (8) – from finding prospects to personalized outreach and follow-ups – with minimal human intervention.

It monitors 75+ buying intent signals (things like job changes, funding events, website visits, tech stack adoption) to pinpoint when a prospect might be in-market (8). 

Using what Persana calls its PersanaVector™ semantic engine, it matches relevant prospects to your offering much more intelligently than basic keyword search. Essentially, Persana’s AI doesn’t just scrape lists; it understands context and intent, finding hidden gems of prospects who are likely to convert.

Once prospects are identified, Persana AI handles outreach across channels. It excels at hyper-personalization: the AI crafts messages that adapt to each prospect’s needs and recent activities (8). 

For example, it might note a prospect’s LinkedIn post about a pain point and tailor an email introduction about that. It continuously enriches contacts via a “waterfall enrichment” system that pulls info from multiple sources simultaneously to avoid blanks (8). 

Other notable features of Persana AI:

• Autonomous Cadence Execution: Persana’s agent can run multi-touch cadences without needing step-by-step human scheduling. It might send an introduction email, follow up with a whitepaper link, then drop a personalized InMail – all automatically. It even provides real-time alerts when prospects take key actions (like changing jobs or engaging with content) so you can react or have the AI adjust messaging (8). Essentially, Nia works like a tireless SDR who never forgets to follow up.
  
• CRM Integration & Team Collaboration: Persana integrates with major CRMs (Salesforce, HubSpot, etc.), so leads and activities sync seamlessly (8). Interestingly, Persana doesn’t charge per seat – unlimited team members can use it on any plan (8). That’s a plus if you have a growing team, since many platforms charge per user. Persana’s pricing is based on credits (for actions like sending emails or enriching contacts), with plans ranging from ~$68/month (starter) to $750/month (unlimited) (8) – relatively affordable given the data included. All plans allow unlimited users, encouraging collaboration.
  
• Pros and Cons: On the pro side, Persana offers higher match rates for contact data than many competitors (they claim better matches than Apollo and ZoomInfo combined, due to their multi-source approach) (8). It’s great for teams that value data accuracy and want to consolidate tools (Persana can replace your sequencing tool, data provider, and maybe even parts of your CRM workflow). On the con side, there’s a learning curve – the platform is robust, and teams need to spend time guiding the AI initially. Also, Persana historically focused on small/mid businesses; extremely large enterprises might find some feature gaps as they scale (though Persana is evolving quickly) (8).

In comparison to Warmly, Persana is less about website intent and more about casting a wide net intelligently. Warmly zeroes in on people already showing interest (e.g. visiting your site); Persana goes out and finds potential customers across the whole market using data signals. 

3. LeadLoft – All-in-One Outbound Sales Platform with Built-in AI

LeadLoft is an all-in-one sales engagement platform designed to replace an entire outbound tech stack. If your team is tired of stitching together a CRM, email tool, LinkedIn automation, and data sources, LeadLoft bundles all that functionality (and more) under one roof. It handles everything from prospect list building to multichannel outreach to pipeline tracking – now enhanced with generous helpings of AI for content creation and workflow automation (9).

The platform includes a lightweight built-in CRM, email sequence automation, LinkedIn messaging automation, a database of investors/contacts, and even features like a LinkedIn scraper and email finder (9). 

In 2025, LeadLoft introduced AI features such as an AI Prospector (to generate prospect lists based on your ICP), an AI Writer for crafting emails and LinkedIn copy, and AI playbook builders that can suggest optimal outreach steps (9). 

The platform is built for startup and SMB teams who want to launch outbound campaigns without dealing with complex integrations. It’s often touted that a new user can start a multi-channel sequence in minutes on LeadLoft. It supports running automated email and LinkedIn sequences side by side and tracking all interactions natively. All the data (opens, replies, clicks, LinkedIn responses) feeds back into the CRM component so you have a unified pipeline view (9).

From a cost perspective, LeadLoft is transparent: pricing is around $400/month for the core platform, plus ~$149 per additional seat (9). That includes pretty much everything (unlimited contacts, sequences, the AI features, etc.). 

Compared to Warmly’s five-figure annual packages or piecing together separate tools, LeadLoft’s flat pricing can be attractive for smaller teams. It’s essentially sales enablement software as a service aimed at companies that might not afford enterprise solutions.

Despite being an “all-in-one,” LeadLoft does have some sweet spots and limitations:

• Strengths: It shines for teams that don’t have an established CRM or prefer a lightweight one – because LeadLoft’s CRM can manage your contacts and deals for you. If you’re starting from scratch, it could even replace something like HubSpot for basic use cases. 

Also, if LinkedIn outreach is a big part of your strategy, LeadLoft’s native LinkedIn automation is a plus (saving you from buying a separate tool for that). The new AI writing assistant can help reps craft personalized messages faster, which is great for productivity. 

• Fit Considerations: LeadLoft’s integrated nature means it’s best if you go “all in.” If your company already has a CRM like Salesforce that you’re married to, or if you rely on very advanced forecasting/deal stages, LeadLoft’s simpler CRM might feel limiting (9). 

In such cases, you’d use LeadLoft for top-of-funnel and then have to sync data to your main CRM (which is doable via CSV or Zapier, but not as seamless as a built-in workflow). Also, large enterprises needing deep analytics or complex permissioning might find LeadLoft a bit lightweight. 

LeadLoft might not have Warmly’s fancy intent data, yet it provides the day-to-day tools to run outbound campaigns efficiently. You could say Warmly is data-first, whereas LeadLoft is execution-first. If you’re comfortable building your own targeted lists and just need a killer way to engage them across email/LinkedIn, LeadLoft is very compelling. Its integrated AI will even help you generate those target lists and messaging, lowering the effort required.

As a Warmly alternative, LeadLoft might not have all the bells and whistles of intent signals, but it brings the core outbound functions together with a dash of AI magic to help book more meetings with less hassle.

4. 11x.ai – “Digital Workers” for Hands-Off Outbound at Scale

11x.ai offers a team of AI-driven “digital workers” – essentially specialized AI SDR agents for different channels – that can run your outreach with minimal human oversight (9). 

For example, they have an email/LinkedIn digital worker (named “Alice”) and a phone dialer AI (“Mike”), among others, each tuned to perform specific SDR tasks. The vision is that you can activate these AI workers to massively scale up prospecting and follow-ups, while your human team steps in only when a lead is qualified and ready to talk.

Warmly automates a lot but still expects your team to monitor and engage with prospects on live chat or respond to meeting requests. 11x.ai aspires to fully automate the outbound funnel until the point of booking a meeting. It’s almost like hiring a robotic SDR team. According to their materials, a digital worker like Alice can handle emailing and LinkedIn messaging thousands of contacts, optimizing send times and content as she learns, without needing a manager to dictate every step.

Of course, such autonomy comes with a premium: 11x.ai is one of the pricier options, typically targeting larger teams with budget. Pricing is quoted around $5,000–$10,000 per month on an annual commitment (9). This investment makes sense if you’re replacing multiple human SDRs – which it effectively can. Consider that 2-3 experienced SDRs could cost $20K+ per month in salary; 11x at ~$5-10K can undercut that while doing the work of an entire team. It’s best suited for companies that want to scale outbound aggressively (broad target market, large TAM) and have the budget to support an enterprise-grade tool.

Key things to know about 11x.ai:

• Channel-Specific AI Agents: The concept of different “digital workers” for each channel is unique. It means the AI running your cold emails is distinct and fine-tuned for email deliverability and copywriting, while the one doing calls might specialize in voicemail drops, etc. This specialization could yield better results than a one-size-fits-all AI. For instance,

Alice (email/LinkedIn agent) will write personalized connection requests or emails, learn which messaging gets replies, and adjust.

Mike (phone agent) might auto-dial through lists, play pre-recorded voicemails or even use text-to-speech for simple qualification calls.

• High Volume, Low Touch Outreach: 11x is ideal if you have clean data and a broad ideal customer profile. It thrives on volume. If you can feed a list of, say, 100,000 prospects into the system, the AI can start churning through them systematically. 

Companies that have expansive markets (e.g. horizontal SaaS products that could sell to many industries) might use 11x to blanket the market and uncover pockets of interest rapidly. Conversely, if your target list is very narrow or you need highly customized outreach for each account (as in ABM list building scenarios), 11x’s brute-force style may overshoot.

• Hands-Off but Not Hands-Free: While the goal is minimal oversight, you do have to set up playbooks and parameters. 11x provides templates and guidance – often a white-glove onboarding process is included (especially given the cost) to help you configure the AI agents to mimic your best reps’ approach (9). 

After that, the AI takes over day-to-day execution. Still, you’ll likely monitor results and tweak strategy periodically. For instance, you might adjust targeting if you find one segment responding more. Also, because it’s fully automated, you want to ensure messaging aligns with brand and compliance – which 11x’s team helps with during onboarding (making sure the AI understands your tone).

• When to Avoid: 11x may be overkill for small teams or tight budgets. If you only contact a few hundred new leads a month or need granular control over each message, a cheaper, human-in-loop tool might serve you better (9). 

Also, since the platform’s pricing isn’t self-serve or transparent, it’s catering to those willing to engage in a sales process and potentially a custom plan. Startups in scrappy mode might find it out of reach.

As a Warmly alternative, 11x.ai represents the high end of AI-driven outbound. It’s the choice when you say, “I want an army of AI SDRs to take outbound completely off my sales team’s plate.” Warmly will certainly automate a lot, but 11x takes it further by aiming for near-complete autonomy at a scale of thousands of touches. One can imagine using Warmly to capture current intent leads, but deploying 11x to create pipeline from cold prospects at scale. Together, that could be powerful – though most will pick one approach or the other.

5. Artisan AI – Brand-Optimized AI Outreach with Adaptive Learning

Artisan provides an AI SDR agent (often dubbed an “Artisan” like Ava) that behaves like a highly-trained member of your team, adhering closely to your playbooks and communication style (9). 

It emphasizes brand-safe personalization. It’s an ideal Warmly alternative for companies who want to scale outreach with AI but refuse to sound robotic or off-brand.

How does Artisan achieve this? The platform uses a combination of machine learning and human coaching to train its AI on your specific tone and content. 

During onboarding (which is done in a white-glove manner), Artisan’s team will ingest your past emails, marketing materials, value propositions – any content that defines how you talk to customers (9). They effectively teach the AI to mimic your brand’s voice. 

The AI “Artisan” then runs multi-channel outreach (emails, LinkedIn, etc.) following your playbook of touches, but it continually adapts and learns from responses to get closer to your desired style over time (9).

The result: prospects receive messages that feel like they came directly from your company’s seasoned SDRs or executives, not a generic template.

One highlighted capability is ongoing tone refinement. Artisan’s AI doesn’t remain static; as it sends more messages and you (or their team) give feedback, it updates its language model. 

For example, you might prefer a friendly, consultative tone rather than a pushy sales tone – Artisan will enforce that in all communications. If there are certain phrases or jargon your brand uses (or avoids), Artisan learns those preferences. This is crucial for industries with compliance or reputation concerns. 

Some key points about Artisan AI:

• Multi-Channel, Human-Like Outreach: Artisan handles email, LinkedIn messages, and even SMS outreach, stringing them together in sequences that mirror what a human rep might do. It schedules sends optimally and can adjust content based on prospect interactions (similar to how Warmly orchestrates touches, but with a finer focus on tone). 

Artisan’s aim is not just to blast messages but to make real connections at scale – their tagline suggests they create “real conversations” by sounding human. For instance, if a prospect engages positively, Artisan might lengthen future emails to provide more detail (like a human would when interest is shown). If someone is unresponsive, it might try a different approach or channel.

• Pricing & Onboarding: Artisan is positioned as a premium solution. Pricing is roughly $2,400 to $7,200 per month (estimated) depending on scope (9). The range suggests they might charge more if you have multiple personas or more complexity to train the AI on. It’s not a self-serve sign-up; expect a consultative onboarding where 

Artisan’s team works closely with yours (hence the term “white-glove onboarding” in their materials) (9). This onboarding ensures compliance and tone alignment – a plus if you have strict brand/legal requirements, but it does mean Artisan isn’t an instant plug-and-play tool.

• When it Shines: Artisan is great when brand consistency and personalization matter. For example, enterprise companies with strong brand guidelines or regulated industries (finance, healthcare) could use Artisan to scale outreach without fear of off-message emails. 

Also, if you plan to let the AI handle a large portion of prospect interaction, you want it to be as close to a trained rep as possible – Artisan’s continuous learning provides that comfort. Their approach implies that over time the AI gets better and better, almost like a new hire ramping up, which is compelling for long-term value.

• Considerations: One drawback is if you require compliance approval on every message (say your legal team must pre-approve emails) – in that case, even Artisan’s AI might not be allowed full freedom (9). 

Companies with such needs might still treat Artisan as an assistant that drafts content for human approval rather than fully autonomous. Also, the lack of transparent pricing tiers could be a hurdle for smaller firms. Artisan might also have fewer customers (being newer and niche), so it may not have as many integrations or community resources yet compared to bigger players.

In comparison to Warmly, Artisan AI doesn’t emphasize intent data or signals as much; it’s more about refined outreach execution. You might still need to identify who to contact (via your own research or a data source) – then Artisan’s value is in how it reaches out, with tailored finesse. 

Warmly might get you hot leads, but Artisan ensures every lead (even cold ones) gets a highly customized touch that reflects your brand’s quality. For organizations that worry “automation = impersonal,” Artisan squarely addresses that by keeping the messaging personal and on-brand.

Many companies spend months training new SDR hires to get messaging right – Artisan compresses that into an AI that can send thousands of messages in parallel once trained.

The platform’s name “Artisan” is apt; it treats outreach as a craft. If that aligns with your priorities, Artisan could be the Warmly alternative that gives you both high volume and high quality in outbound outreach. Just be ready to invest in a thorough onboarding and treat the AI as a long-term team member who keeps improving the more you work with it.

6. Reply.io (Jason AI) – AI-Enhanced Sales Sequences with Deliverability Focus

Reply.io is a sales engagement software known for its sequence automation of emails, calls, and LinkedIn similar to Outreach or Salesloft. What makes it relevant here is Jason AI, Reply’s new AI sales assistant introduced into their platform. If you’re considering Warmly alternatives, Reply.io with Jason AI offers a robust, battle-tested engagement tool now infused with intelligence to optimize your outbound campaigns in real time.

Jason AI acts as a co-pilot for your sequences: it can monitor live campaign performance and automatically adjust elements like email copy, send timing, and even the channel sequence to improve reply rates (9).

In essence, it’s as if an expert SDR manager is constantly A/B testing and tweaking your cadences, but at machine speed. For example, if Jason sees that your first email isn’t getting responses but prospects tend to reply to the third email, it might suggest or implement a new first email approach. 

Or if certain call steps are never reached because contacts reply earlier, it can reorganize steps for efficiency. This dynamic optimization is a big leap from static sequences that you set and forget.

Another core strength is email deliverability management. Reply.io as a platform always emphasized deliverability (offering features like automatic email warm-up, spam check, etc.), and Jason AI leverages that. It can regulate sending volume, recommend content changes to avoid spam triggers, and adjust send schedules to maximize inbox placement (9). 

Given that 20% or more of cold emails can end up in spam without proper warm-up and timing, having AI guard your sender reputation is valuable. Warmly also handles domain warm-up as part of its stack (11), but Reply’s long experience in this domain means Jason AI comes with a lot of historical data on what gets through and what doesn’t.

Let’s break down what Reply.io + Jason AI brings:

• Multi-Channel Sequences with AI Optimization: You can run sequences that include emails, LinkedIn tasks, calls, and even SMS, all orchestrated in Reply.io (it has its own dialer and LinkedIn integrations). 

What Jason adds is continuous improvement – e.g., adjusting the email content tone if prospects aren’t engaging, or changing the wait times between touches based on best practices. It might even suggest adding a channel if it predicts it’ll help. Essentially, your sequences become living campaigns that evolve rather than static email drip campaigns.

• Mailbox Warm-Up & Health Tools: Cold outreach lives or dies by deliverability. Reply.io has built-in mailbox warm-up (even before it was trendy), where it auto-sends and replies to emails between dummy accounts to build sender reputation. 

Jason AI monitors each inbox’s health and can throttle or pause sends if it detects issues (like if an email might be landing in spam). For high-volume senders, this is crucial. Warmly’s platform includes domain warm-up too (11), but if you’re not on Warmly and need a tool to integrate with say Gmail or Outlook, Reply’s solution is handy.

• Scalability and Team Features: Reply.io is designed to accommodate multiple users and large outreach volumes. It offers unlimited contacts and user seats on certain plans (9), which can be cost-effective for big teams (no per-contact charge). 

This means as your team grows, you’re not paying more for each rep in the platform – a noteworthy consideration if you have 10+ people prospecting. The pricing is tiered annually: roughly $6,000/year to $18,000/year for packages that include Jason AI and varying feature levels (9). If you break it down, that can be quite reasonable per user (especially since they don’t strictly charge per seat).

• Best For / When to Use: Reply.io with Jason AI is best when you already manage significant outbound volume and want to boost efficiency and results. If you send thousands of emails a month and care deeply about your reply rate percentage and conversion metrics, Jason is built for you (9). 

It’s also great if you have multiple reps and want to ensure consistent practices – the AI helps even junior reps by guiding them on messaging improvements. 

Conversely, if you only handle a few dozen leads at a time or you need highly individualized, human-crafted touches for each prospect, a heavyweight sequencing tool might be overkill. Also, if budget is a concern and you only need basic email sequences, Reply might be more than you need.

Comparing to Warmly: Warmly provides some outbound sequencing via its AI Orchestrator (email + LinkedIn) (11), but it’s primarily driven by intent triggers (i.e., it reacts when someone is on your site or hits a signal). 

Reply.io is more of a traditional sequencer where you proactively load in target contacts and let it run a structured cadence. So if your strategy is classic cold outbound (you have lists of targets to reach out to, regardless of intent), Reply.io is a stronger solution. 

Warmly would excel if you have lots of inbound traffic/signals to respond to in real time. Many organizations might actually use both: Warmly to capture the low-hanging fruit of warm leads, and Reply.io for broader cold campaigns to everyone else. But if you’re choosing an alternative due to budget or other reasons, Reply.io covers a lot of ground for outbound needs, bolstered by a smart AI assistant to keep improving your results.

As an alternative to Warmly, it’s especially suitable if your focus is maximizing cold outreach efficiency and you already have a handle on who to target (since Reply won’t find the leads for you, but it will help you engage them optimally).

7. Lyzr – AI Sales Assistant for Research and Personalization (Human-in-the-Loop)

Lyzr is an AI SDR tool that takes a more assistive approach: think of it as an AI sidekick that helps your human reps work smarter, rather than a fully autonomous agent. 

Lyzr’s AI focuses on doing the tedious parts of outbound – researching prospects, drafting tailored messages, and even nudging reps when it’s time to follow up – while leaving the final control in human hands (9). 

For those seeking Warmly alternatives with a lighter touch of automation (and a lower cost), Lyzr is a compelling option.

Here’s how Lyzr typically works: when you add a prospect or account, Lyzr will automatically gather insights on them – pulling info like their recent news, LinkedIn posts, industry trends, etc. (9). It then uses that context to draft personalized email copy or LinkedIn messages for the rep to review. Instead of staring at a blank compose window, your rep gets an AI-suggested message that they can edit or approve. Lyzr also sits in your workflow (perhaps as a Chrome extension or within your CRM) to provide real-time cues – for example, if you’re about to email a prospect, it might show you their latest tweet or company announcement so you can reference it. It’s akin to having a virtual assistant prep all your call notes and sales email templates, so you’re always well-informed and relevant.

💡Why does this matter? Sales reps often spend up to 2 hours per day on non-selling tasks like researching prospects and writing outreach (7).

That’s about 25% of their time not spent talking to customers. Lyzr can give much of that time back. By handling the initial research and draft writing, it lets reps focus on the higher-value activity: fine-tuning messaging and engaging in actual conversations. It’s a middle ground where AI does the heavy lifting of prep, and humans do the judgment and relationship-building.

Key points about Lyzr:

• Human-in-the-Loop Design: Lyzr deliberately keeps a person in the loop. It does not send emails on its own (unless you explicitly allow it after trusting its output). This means you avoid the risk of AI sending something off-brand or erroneous because a human reviews it first. 

For teams that are uncomfortable with a “black box” AI contacting prospects, Lyzr provides peace of mind. Over time, as trust builds, reps might start accepting 90% of Lyzr’s suggestions with minimal edits – but that choice is yours.

• Contextual Awareness: Lyzr’s strength is giving reps context without switching tabs. Imagine you’re in your CRM looking at a lead – Lyzr can surface details like “Prospect just posted on LinkedIn about needing to improve their CX” or “Their company announced a merger last week.” 

These nuggets are golden for personalization. It saves the rep from Googling around for 10 minutes before each email. With Lyzr, every email can have a tailored hook (“Congrats on your merger – many companies in that phase use our solution to streamline integration, just like [similar client].”). That level of relevance is proven to boost reply rates significantly.

• Intuitive Nudges: Lyzr doesn’t just feed info; it also nudges reps on tasks. For example, if a prospect hasn’t responded in 5 days, Lyzr might remind the rep and even draft an email follow-up based on any new developments in that time. It’s like a smart to-do list that prepares the to-do for you. This can be extremely useful for busy sales teams to ensure no lead falls through the cracks.
  
• Pricing and Ideal Use: At around $999 per month (9), Lyzr is more affordable than many fully autonomous platforms. It’s ideal for small teams or individual SDRs who want to amplify their output without losing personal touch.

Also, if your data sources are limited (you don’t have fancy intent tools), Lyzr squeezes the most out of publicly available data to enrich your outreach. However, if you’re looking for a “set-and-forget” solution to run campaigns without involvement, Lyzr is not that – it’s for those who intend to remain actively engaged in the process but just want a boost.

Comparing Lyzr to Warmly: Warmly automates actions when interest is shown, whereas Lyzr helps reps create interest by improving each action they take. Lyzr doesn’t provide intent signals or a contact database; it operates on leads you’re targeting (which you could find via other means or just your ICP list). 

Warmly’s strength is alerting you to warm prospects and auto-sequencing them; Lyzr’s strength is making every outbound touch (warm or cold) as informed and personalized as possible. 

They actually could complement each other – use Warmly to know who is hot, then use Lyzr to craft the perfect message to them. But as an alternative, Lyzr is a fit if you don’t have (or don’t trust) those intent signals and instead want to maximize quality over quantity in outreach.

To conclude, Lyzr represents a more conservative and craftsmanship-focused approach to AI in outbound sales. It won’t flood your funnel with thousands of automated emails, but it will help you write a better email to each prospect and ensure you know exactly why that prospect should care. 

8. Agent Frank by Salesforge – 24/7 AI SDR for Automated Pipeline Building

Agent Frank is the persona given to Salesforge’s AI SDR system – a 24/7 outbound agent that finds prospects and runs multi-touch outreach to book meetings, all on its own (9). 

Essentially, “Frank” works as your always-on SDR, prospecting and qualifying leads while you sleep (and while you work, and around the clock). This makes Agent Frank a notable Warmly alternative particularly for very lean organizations or as a force multiplier for a tiny sales team.

What can Agent Frank do? According to Salesforge, Frank will:

• Build targeted lead lists based on criteria you set (industry, role, etc.), tapping into integrated data sources.
  
• Send personalized emails, LinkedIn messages, and follow-ups in a pre-defined cadence to those leads.
  
• Assess responses and book meetings when a lead shows interest or meets qualification criteria, alerting you to hop on the call.
  

In other words, Agent Frank tries to cover the full SDR cycle from cold outreach to initial qualification. It’s not a flesh-and-blood person, but to the prospects, it appears as just another rep reaching out (you can even give it a human name and email identity for external communications).

A few specifics and benefits of Agent Frank:

• Meeting Booking Focus: The success metric for Frank is meetings booked. It’s tuned to maximize reply and conversion rates. If leads reply with questions, Frank can be configured to respond with some basic answers or promptly notify a human. 

The goal is to handle the simple back-and-forth and scheduling, then pass the baton to you for the substantive sales conversation. For a busy founder, having initial sales meetings magically appear on your calendar is the dream outcome – Frank is built to do that routinely.

• Pricing Model – Pay by Scale: Agent Frank is priced in a way that scales with usage. The pricing cited is about $1,497 per quarter (so roughly $499/month) for a certain tier of active contacts (9). Salesforge uses an “active contacts” model, meaning you pay based on how many contacts you’re reaching out to in a given period.

This can be efficient: you’re charged in proportion to the volume Frank is working. If you have, say, 1,000 active contacts in sequences, you might be on one tier; for 10,000, a higher tier. The quarterly commitment aligns with the idea that outbound programs need some ramp time to show results (so they encourage at least a 3-month run).

• Ideal Users: Agent Frank is great for early-stage companies or small businesses that need sales leads but can’t justify a full SDR headcount or expensive platform. For example, a SaaS startup with a founder-led sales model can “hire” Frank to supplement their own sporadic outreach – ensuring consistent prospecting is happening. 

It’s also useful if you have a very small sales team (like 1-2 reps) who are juggling closing and prospecting; Frank can take a chunk of prospecting off their plate. Importantly, Frank works best when your sales process is straightforward and doesn’t require deep discovery on the first call. If your product needs heavy qualification or technical discussion upfront, an AI might not navigate that well. But if it’s a simpler sales pitch, Frank can handle up to the point of a basic intro call.

• Limitations: Agent Frank is not as customizable or complex as some larger platforms. It’s meant to get the job done with minimal fuss. If your sales outreach requires highly customized steps for each account (like ABM style) or if each lead needs a very tailored message, a one-size-fits-all AI agent could fall short (9). 

Also, note the billing – it’s per quarter. If you need a month-to-month flexibility, that’s not their default (though presumably you can turn it off, you’d just waste remaining time in the quarter). This quarterly cadence suggests they want users to stick with it a bit to see results.

Comparing to Warmly: Warmly provides sophisticated lead intent and chat engagement, which is awesome if you have traffic or user data feeding in. But Warmly won’t go out and prospect totally cold accounts for you – that’s not its design. 

Agent Frank, on the other hand, is all about cold outbound at scale with minimal input. You give it a target profile and it hunts. Think of Warmly as activating warm leads and website visitors, whereas Frank creates cold leads out of thin air (or rather, out of databases) and warms them up for you. If you’re lacking leads altogether, Warmly wouldn’t have much to work with; Frank would actually generate outreach and create opportunities from scratch.

For many companies in 2025, this idea is very attractive, especially given how hard hiring and retaining SDR talent can be. As a Warmly alternative, Agent Frank is ideal if you need immediate outbound firepower without the overhead. It pairs the ubiquity of AI with the simplicity of a service: you activate it, and it produces meetings. For a fraction of the cost of a full SDR team, that’s a hard proposition to ignore for small B2B outfits looking to grow.

9. AiSDR – Managed AI Outreach with Unlimited Leads and Seats

Rounding out our list is AiSDR, a platform that markets itself as an out-of-the-box managed AI SDR service. AiSDR provides a tool that turns your sales development playbook into automated multi-channel campaigns – covering email, LinkedIn, SMS – while also bundling in the data (contact lists) and hands-on guidance to get going (9). 

One of AiSDR’s selling points is simplicity and support. They understand that many companies want to try AI-powered outbound but don’t have the know-how to orchestrate it. 

So AiSDR’s team helps set up your campaigns, almost like an agency would, but then lets the AI do the execution. It’s somewhat analogous to Martal Group’s approach (discussed earlier) but without the fully dedicated SDR service – AiSDR provides guidance but expects your team to manage the qualified leads that come in. If Martal is a high-touch service+tech combo, AiSDR is a lower-touch service bundled with tech that you operate.

Notable features of AiSDR:

• Unlimited Scale Model: AiSDR’s pricing (roughly $900 to $2,500 per month depending on package) includes unlimited contacts and unlimited users (9). This is a big deal – many sales tools meter you by contacts or charge per seat. 

AiSDR gives a flat rate for using their database and platform as much as needed. If you have a large TAM or a big team of SDRs, this can lead to significant cost savings. Essentially, you won’t be nickel-and-dimed for growing your outreach; you can upload as many leads as you want and have as many team members as you want working them.

• Built-In Lead Database: AiSDR comes with a database of leads (or integrates one seamlessly). This means from day one you have some target lists to go after, filtered by your criteria. 

For companies that don’t have a good list or don’t want to purchase data separately, this is convenient. It likely pulls from multiple sources to provide verified emails, phone numbers, etc. The benefit is you avoid the common startup problem of “we have an outreach tool but no contacts to feed it.” AiSDR feeds itself.

• Persona-Based Messaging: The platform boasts persona-tailored outreach templates (9). During setup, you’ll define your ideal customer profiles and buyer personas (e.g. CTO in fintech, or HR manager in mid-size company). AiSDR’s system then selects the right messaging approach for each. 

Perhaps CTOs get a technical angle email while HR folks get a problem-solving angle. This is all about higher relevance – and as we’ve seen, relevancy boosts conversion. By customizing per persona, AiSDR aims to avoid the one-size-fits-all emails that prospects ignore.

• Integration and Workflow: AiSDR is designed to slot into stacks centered on HubSpot or Gmail especially (9). That hints that they cater to a lot of SMBs or mid-market firms that run on Google Workspace and HubSpot CRM. 

If you’re in that category, integration will be smooth (logging emails to CRM, using your Gmail to send, etc.). They likely also integrate with Outlook/Microsoft and other CRMs, but HubSpot is a key focus. The platform will sync activities and outcomes back to your systems so you have a unified view.

• Clean Data Emphasis: A caution with AiSDR is that it relies heavily on your CRM data being clean (9). If you integrate with a messy CRM (duplicates, missing fields), the AI might target wrong or send inappropriate messages. 

So before using AiSDR, you’d want to tidy up things like industries, titles, etc., in your CRM if that’s feeding in. The flip side is that AiSDR can also enrich and update data as it works (since it has its own database), which can improve your CRM hygiene over time.

Where AiSDR fits as a Warmly alternative: Warmly is great if you have web traffic and want to convert that intent; AiSDR is great if you have a defined target market and want to proactively go after them with minimal hassle.

Warmly’s platform doesn’t provide leads; AiSDR does. Warmly’s AI focuses on those in-market; AiSDR will create interest even among those not actively signaling it (classic outbound).

AiSDR is especially attractive for teams that want quick results without managing multiple vendors. Instead of buying a ZoomInfo subscription, an outreach tool, and perhaps hiring a consultant to set sequences, you pay AiSDR and get an “all-in-one outbound engine” with some support. 

In summary, AiSDR combines many of the features we’ve discussed in other tools: multi-channel sequences, AI-written messaging, data enrichment – but packages them with simplicity and support.

The phrase “unlimited leads bundled in” is music to any VP of Sales’ ears on a budget. Just remember that unlimited leads are only useful if you have a strategy to pursue them; AiSDR will help with execution, but you’ll still guide who to target and what value prop to push. 

Final Thoughts

The outbound sales landscape in 2025 is exploding with AI-driven innovation. From intent-led platforms like Warmly to the diverse alternatives we’ve covered – each tool brings something unique to the table. The right choice ultimately depends on your team’s size, goals, and philosophy. Are you looking for a fully managed service where we do it for you, or a self-serve platform to empower your team? Do you prioritize a personal touch, or do you need raw volume and scale?

One thing is clear: AI SDR platforms are no longer experimental – they’re delivering real results. Companies adopting these tools are seeing significant boosts in productivity and pipeline. It’s not about replacing human salespeople, but augmenting them. 

As we saw, AI can handle up to 80% of the repetitive work (1), freeing your reps to spend more time on high-value activities like building relationships and closing deals. In fact, forward-thinking sales orgs treat AI as part of the team – a digital SDR or “co-pilot” that works alongside human reps. This hybrid approach is often the winning formula: let AI do the heavy lifting and data crunching, while your people focus on creative, strategic selling.

If your organization is still relying purely on old-school manual prospecting, now is the time to evaluate these solutions. The competition is embracing them – recall that 87% of sales leaders using AI report a positive impact on their team’s daily work (10). 

Adopting an AI SDR platform isn’t just about being cutting-edge; it’s becoming necessary to keep up in efficiency and reach.

Among all the options, we featured Martal Group at the top for a reason. Martal offers a rare blend of AI technology and human expertise. By partnering with Martal, you’re not just licensing software – you’re essentially plugging in a high-performance SDR department on demand, powered by a proven AI engine. Our team (yes, we at Martal) has spent 15+ years perfecting B2B outreach, and we’ve baked those best practices into an AI platform that executes lead generation campaigns with precision. 

The advantage for you is twofold: speed (our AI and data get campaigns ramped up in days, not weeks) and quality (our seasoned reps ensure the messaging and targeting are spot on). We consistently deliver results like 4-7× more responses, higher lead quality, and faster pipeline growth for our clients (6). 

And we do it through a truly omnichannel approach – cold calling, cold emailing, LinkedIn outreach, you name it – all orchestrated in harmony. It’s an AI-driven, omnichannel lead generation platform with real people behind it to maximize success.

In practical terms, that means Martal can handle everything from building your ideal prospect list, writing and sending personalized emails, placing phone calls to top prospects, engaging on LinkedIn, lead nurturing, and setting qualified meetings for your closers. 

We even provide lead gen training and insights along the way, so your in-house team learns what great outreach looks like. And you stay in the loop with transparent reporting and collaboration.

If you’re reading this and wondering how these AI SDR solutions could work specifically for your business, we invite you to find out. Let’s have a conversation about your outbound goals. Martal Group offers a free consultation where we’ll assess your current sales development process (or lack thereof) and show you how an AI-powered strategy – tailored to your market – can fill your pipeline with decision-makers. 

We’ll discuss services like sales outsourcing, appointment setting, cold call and email campaigns, LinkedIn lead gen, and more, all unified under our platform. In short, we’ll map out a plan to help you achieve consistent, scalable growth without the usual headaches.

⚡ Ready to transform your outbound sales with AI? Book a free consultation with Martal Group and let’s explore how we can drive more leads, more appointments, and more revenue for your organization.** Leverage the power of AI SDR technology combined with our expert team to outsell and outsmart your competition. The future of B2B outbound is here – and we’d love to help you be a part of it.

---

References

1. Martal Group – AI Sales Automation
2. Capgemini
3. Martal Group – Outbound Sales Software
4. HubSpot
5. Spekit 
6. Martal AI SDR Platform
7. RAIN Group 
8. Persana AI
9. LeadLoft 
10. Second Brain Labs
11. Warmly

---

FAQs 

1

What is the best Warmly alternative for B2B sales in 2025?

Martal Group is the best Warmly alternative for B2B teams in 2025. It offers a fully managed AI SDR platform with an experienced sales team that automates up to 80% of outbound tasks. Unlike standalone tools, Martal combines proprietary AI, multichannel execution, and strategic support to help clients build pipeline faster without hiring in-house.

2

How does Martal compare to Warmly in terms of automation?

Martal’s platform offloads more SDR tasks than Warmly. While Warmly excels at identifying intent-based leads, Martal delivers cold outreach at scale—automating lead sourcing, personalization, outreach, follow-up, and booking. It also includes cold calling and LinkedIn outreach managed by live experts, which Warmly doesn’t offer natively.

3

Can I use these platforms if I don’t have a prospect list?

Yes. Platforms like Martal and AiSDR include access to vast databases of verified B2B contacts. Martal also uses intent signals to identify high-fit leads and builds personalized campaigns from scratch. You don’t need to bring your own list—they’ll handle that for you.

4

What’s the biggest advantage of AI SDR platforms over traditional tools?

AI SDR platforms eliminate manual busywork, accelerate prospecting, and improve personalization at scale. They allow your team to focus on selling, not searching or writing. Many users report 3× faster pipeline growth and 65% reduction in outbound costs compared to traditional methods.

5

Which AI SDR platform is best for small teams or startups?

Tools like Agent Frank or Lyzr are ideal for startups needing hands-off or human-in-the-loop support. They’re cost-effective, quick to launch, and designed for lean teams. However, Martal is a better option if you want an all-in-one managed solution to scale without hiring.