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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

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3 tools
marketing
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.