Best Graph8 Alternatives for AI-Powered Sales Outreach

Introduction

Graph8 is an AI-driven sales development platform designed to automate outreach using real-time buyer signals, advanced B2B data, and multi-channel AI sales agents. It combines contact data, intent signals, and communication tools – including email, SMS, chat, and AI voice – into one integrated solution.

While Graph8 represents one approach to AI-powered outbound sales, it’s not the only option available. Businesses exploring AI SDR platforms or managed sales services in 2025 have a range of strong alternatives to consider. Solutions such as the Martal AI SDR Platform offer a mix of AI automation and expert-led sales support, helping teams scale personalized outreach and pipeline growth.

This guide compares Graph8 with leading competitors and alternatives, highlighting their core features, pricing models, and ideal use cases to help teams choose the right fit for their outbound strategy.

Who are Graph8’s main competitors in AI sales development?

Emerging AI SDR platforms and sales engagement tools. Graph8’s key alternatives include Martal’s AI SDR platform, Outreach.io and Reply.io, ABM/intent platforms such as 6sense, AI-driven outreach tools like Autobound, and all-in-one sales platforms like Apollo.io (4). Each offers similar capabilities for automating prospect engagement and outbound sales.

What features do alternatives offer that Graph8 doesn’t?

Human touch, ecosystem, and specialization. Some competitors bring strengths Graph8 lacks. Martal’s platform, for example, pairs AI automation with human oversight, meaning seasoned sales strategists monitor outbound campaigns and step in for nuanced conversations – a layer of human quality control Graph8 doesn’t include by default (4). Traditional platforms like Outreach and Apollo boast extensive CRM integrations and a mature ecosystem of add-ons and partners (3) (7), whereas Graph8 (a newer solution) may have fewer integrations or third-party tools. ABM-focused tools excel in deep lead intelligence, intent analytics, and data accuracy (4), providing market insights that go beyond Graph8’s primarily execution-focused feature set. In short, Graph8 covers a broad range of sales tasks autonomously, but alternatives may offer deeper specialization – whether it’s data enrichment, advanced reporting, or lead generation workflows – that Graph8’s all-in-one model might not match.

Top Graph8 Alternatives: Leading Sales Platforms Compared

Among Graph8’s competitors, Martal Group’s AI SDR Platform stands out as a hybrid solution that combines AI-driven automation with the expertise of human sales professionals. Martal helps B2B companies identify prospects, personalize outreach, and generate qualified opportunities without relying solely on internal SDR teams.

Other competitors fall into the traditional sales engagement or sales automation category, platforms designed to help SDRs manage email sequences, calls, and other outreach activities. 

1. Martal Group – Human-Led + AI Sales Platform for Full-Service Outbound

Martal Group is a B2B sales outsourcing and lead generation agency that uniquely combines a human touch with a powerful proprietary AI SDR platform. With 200+ onshore sales executives and 15+ years in business, Martal acts as an extension of your team – providing seasoned SDRs backed by an AI outreach system (5). They handle the entire outbound sales process, from prospect research to multi-channel outreach (email, LinkedIn, phone), to booking qualified appointments on your calendar.

Core Features:

• Hybrid SDR Team: Martal’s model is human-led but AI-augmented. A dedicated team of experienced sales reps executes campaigns, while Martal’s proprietary AI SDR platform optimizes tasks like contact verification, email sequencing, and follow-ups (6). This blend ensures both personalization and scale.
  
• Omnichannel Lead Generation & Outreach: Campaigns engage prospects via email, LinkedIn, and even phone calls, ensuring touches on multiple fronts (6). Martal’s SDRs personalize messaging to each channel – for example, a LinkedIn connection request followed by a tailored email – increasing the odds of engagement.
  
• Intent & Data-Driven Targeting: Martal leverages intent data and a vast contact database to focus on high-fit prospects showing buying signals (e.g. technographic or behavioral cues). No generic mass-blasts – every lead is pre-qualified against your ideal customer profile, so reps talk to the right decision-makers at the right time.
  
• Proven Results: With over 2,000 B2B brands served and 90%+ client satisfaction, Martal has a strong track record. They’re trusted by startups and Fortune 500s alike to consistently fill pipelines. On average, clients see significant boosts in lead volume and booked meetings, backed by Martal’s ROI-driven approach. (Martal cites 4–7× higher outreach conversion rates vs. traditional methods in AI-powered campaigns (6).)
  

Ideal For: Teams (from SaaS and tech firms to MSPs, telecom, manufacturing and more) that want quick pipeline growth without hiring in-house SDRs. Martal is essentially a “sales-as-a-service” partner – great for VPs of Sales or founders who need an instant outbound function. It’s also ideal if you value a hands-on human approach but lack the bandwidth or expertise to manage it internally. Martal’s broad experience across 50+ industries means they can ramp up in new markets fast.

Martal’s unique mix of AI and human expertise sets it apart – none of the other options below offer the same fully-managed SDR service. Now, let’s look at the purely technology-driven alternatives and AI platforms you can consider.

2. Outreach.io – Enterprise Sales Engagement Platform

Overview:
Outreach.io is an enterprise-grade sales engagement system built around human-led outreach supported by AI insights. It helps teams manage and automate multi-channel communication but still relies heavily on human SDRs and account executives to drive engagement.

Key Features:

• Structured multi-channel sequences across email, calls, and LinkedIn
  
• AI-assisted analytics, forecasting, and call intelligence
  
• Deep CRM integrations and team management tools
  

While its AI enhances productivity, the platform remains manual in nature—best suited for organizations that prefer people in control rather than automated engagement.

Ideal For:
Mid-to-large sales teams needing detailed oversight, reporting, and scalability through human-driven outreach operations.

3. Reply.io – Multichannel Outreach with AI Assistance

Overview:
Reply. io provides automation for outbound sales via email, LinkedIn, calls, and SMS. Its “Jason AI” feature adds AI-generated sequences and responses but primarily supports, rather than replaces, human outreach.

Key Features:

• Multichannel campaign automation and tracking
  
• Jason AI for sequence creation and message drafting
  
• Integrated prospect database and deliverability tools
  

While it offers growing AI capabilities, users still manage oversight and execution—limiting full automation potential.

Ideal For:
Small to mid-sized teams wanting affordable outreach automation with partial AI assistance, without committing to a fully autonomous system.

4. 6sense – Intent Data and Predictive Targeting

Overview:
6sense focuses on intent-based analytics, helping teams identify and prioritize in-market accounts. Its strength lies in data and prediction rather than direct engagement.

Key Features:

• AI-driven account scoring and “dark funnel” intent insights
  
• Integration with CRM and marketing systems
  
• Emerging AI outreach tools for basic email automation
  

It provides deep intelligence but often stops short of execution—requiring separate tools or teams to act on insights.

Ideal For:
Enterprise B2B teams using account-based marketing and needing advanced data-driven targeting rather than automated engagement.

5. Autobound – AI Personalization Assistant for Outreach

Overview:
Autobound enhances outbound email and LinkedIn campaigns through AI-generated personalization, helping reps craft relevant messages at scale.

Key Features:

• Real-time personalized email suggestions based on 350+ data points
  
• Chrome extension integrated with email and LinkedIn
  
• Compatible with major outreach platforms like Outreach and Salesloft
  

It focuses on improving message quality rather than replacing human senders, offering support rather than full automation.

Ideal For:
Sales teams wanting to improve personalization and response rates without adopting a fully autonomous outreach system.

6. Apollo.io – Unified Sales Data and Outreach Platform

Overview:
Apollo.io combines a vast B2B contact database with built-in outreach capabilities, enabling users to find, enrich, and contact leads within one platform.

Key Features:

• 250M+ contact database with integrated search and filtering
  
• Built-in email sequences, LinkedIn tasks, and call dialer
  
• AI-assisted email drafting and analytics
  

While comprehensive, execution remains user-driven—AI assists but doesn’t autonomously manage prospect interactions.

Ideal For:
Startups and SMBs needing an all-in-one sales tool for data, prospecting, and manual outreach with moderate AI support.

Choosing the Best Graph8 Alternative

When evaluating Graph8 alternatives, the right choice depends on your organization’s priorities. Each platform enhances outbound performance in its own way—but most still depend on human teams to execute. For businesses seeking a faster, more complete path to sales pipeline growth, a hybrid model that merges AI efficiency with human expertise often delivers stronger results.

That’s where Martal Group comes in. Our AI-assisted, human-led sales development services combine advanced automation with experienced sales professionals to drive qualified sales leads and revenue growth—without the overhead of managing tools or SDR teams yourself.

Ready to see how Martal can outperform these alternatives? Connect with us to accelerate your B2B pipeline today.

References

1. Graph8
2. Slashdot
3. Salesrobot
4. Martal – 6Sense Alternatives
5. Martal Group
6. Martal AI SDR Platform
7. Lindy
8. Forecastio
9. Reply.io