The Future GTM Operator

The Future GTM Operator

The async selling playbook

The playbook behind Personio's 47% win rate, now published as a 12-step system for building deal velocity without more meetings

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Koen Stam
Mar 24, 2026
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๐Ÿ‘‹ Hi, it is Koen Stam and welcome to GTM OS: The Future GTM Operator, my weekly newsletter for founders and revenue leaders scaling B2B SaaS from 0 to 10M+ ARR.

Every edition is built from 100,000+ GTM signals collected from operators and founders, combined with 10+ years of my own lessons and failures from the trenches.

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