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Marc Gasser

GTM & AI Tools

My shortlist from 1,000+ hours of review work: featured picks and tools rated 4.0+ only, no affiliate rankings. Plus the market data that matters before you buy: headcount trend, team, region and pricing.

Market insights across 96 tools (87 with headcount trend). Median 12-month growth: +15%. Fastest-growing cluster: "Chat & Assistants" at median +59%; slowest: "Writing & Content" at +2%. Most mature: "Video & Audio" at ~97 employees median.

Top 10 growth

Growth by cluster

Median 12m

Click to filter Top 10

11 tools
Machine Learning
Cresta: CoachingFeatured
Coaching

Cresta

Problem: Inefficient customer service. Solution: A unified, scalable platform for AI and human agents. Result: Reduced costs, increased revenue and customer satisfaction.

5.0 / 5
Ocean.io: AI Sales Intelligence & Account ResearchFeatured
AI Sales Intelligence & Account Research

Ocean.io

Problem: Unclear CRM and outdated lead data; Solution: AI-powered lookalike search with a clean, constantly updated company and contact data database; Result: More precise leads, faster sales.

5.0 / 5
OpenAI: AI Models & FoundationsFeatured
AI Models & Foundations

OpenAI

Problem: Efficiently solving complex tasks. Solution: Unique generative AI models (GPT/ChatGPT) with a security strategy. Result: Faster research and productivity.

5.0 / 5
Actively AI: AI Sales Intelligence & Account ResearchFeatured
AI Sales Intelligence & Account Research

Actively AI

Scale 1:1 customer support with per-account, always-on, tailored AI agents — more pipeline and faster deals.

4.5 / 5
Agent Frank: Sales Prospecting & Outreach PlatformsFeatured
Sales Prospecting & Outreach Platforms

Agent Frank

Agent Frank automates lead generation and appointment scheduling. Problem: Time investment. Solution: AI-powered SDR with integrated infrastructure. Result: More appointments and lower costs without additional tools.

4.5 / 5
Kindly: Customer SupportFeatured
Customer Support

Kindly

Kindly closes 24/7 support and conversion gaps with a quickly integrated, multilingual AI chatbot (LLMs); reduces the need for live agents and increases leads.

4.5 / 5
Sybill: MeetingsFeatured
Meetings

Sybill

Sybill automates CRM maintenance and follow-ups, saves 14 hours per week and accelerates deals through an AI that thinks like a salesperson.

4.5 / 5
Symson: Revenue Operations & ForecastingFeatured
Revenue Operations & Forecasting

Symson

Say goodbye to price fluctuations: Symson uses Hyperlearn™ AI for real-time pricing. This allows you to automatically optimize margins, stay competitive, and efficiently protect your profits.

4.5 / 5
Telescope: Sales Prospecting & Outreach PlatformsFeatured
Sales Prospecting & Outreach Platforms

Telescope

Telescope solves tedious lead generation: AI search helps you find niche leads and launch automated, personalized email campaigns for more appointments without technical setup.

4.5 / 5
Augment CXM: Customer SupportFeatured
Customer Support

Augment CXM

Augment CXM uses AI to analyze customer requests in real time. It addresses missing insights in the contact center by providing priority-based recommendations for improved efficiency.

4.0 / 5
Ocean: AI Sales Intelligence & Account Research
AI Sales Intelligence & Account Research

Ocean

Problem: Inaccurate B2B lead data. Solution: Lookalike search on cleaned company profiles. Result: More relevant leads, faster sales.

5.0 / 5
The next step

A tool is not a system.

The most common mistake after product-market fit: buying tools and hoping for scale. What's missing is the system behind them: processes, data and AI agents working together. I call it Get Multiplayer: a few pros plus AI agents, three instead of thirty.

Start here: How to get started with AI in B2B sales

Frequently asked

How are the tools in this directory rated?
Manual review work, 1,000+ hours. Only tools rated 4.0 or better, or my own recommendations, make the list. There are no affiliate deals and no paid rankings.
What does the headcount trend tell me about a tool?
It shows how the vendor's team is developing. That's a buying signal: growing teams keep shipping, shrinking ones are a risk for your stack.
Which tools belong in an autonomous GTM stack?
Typically: Clay, Apollo or Smartlead for outbound, HubSpot or Pipedrive as CRM, Supabase and n8n for orchestration, Claude and GPT for agent logic. The exact choice follows your ICP and your existing stack.
Is one tool enough to start with AI in GTM?
No. A tool is not a system. Processes and data come first, then AI agents that work on top. Learn it with gtm.science or have it built with Pedalix.