Part I: The GTM channel reset playbook

The playbook that took Personio Benelux from 2M to 10M+ in under 3 years, now published as a 12-step system

Feb 24, 2026

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👋 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.

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