Stijn Hendrikse

About Stijn Hendrikse

Stijn Hendrikse is a founder of T2D3 Inc., which builds T2D3 OS, marketing software for fractional chief marketing officers and their B2B software clients. He is the author of the books T2D3 and Syntropy.

Earlier he was chief revenue officer of Acumatica, CEO of MightyCall, and led the initial global go-to-market for Atera. He co-founded Kalungi, a fractional chief marketing officer agency for B2B software companies, and worked at Microsoft on global small-business marketing and Office product marketing. The company site says he went fractional in early 2015.

Experience

This experience comes from official bios and from SEC filings. For roles taken from filings, the years are when the filings name Stijn Hendrikse in the role, so the role may have started earlier or lasted longer.

T2D3 Inc. Current

Founder and director

2026 – Present · Mckinney, TX

T2D3 OS is marketing software built on the T2D3 growth method, for fractional chief marketing officers and their clients.

KA

Kalungi

Co-founder

AC

Acumatica

Chief Revenue Officer

MI

MightyCall

CEO

AT

Atera

MI

Microsoft

Key Colleagues at Startups

The people Stijn Hendrikse works with at each company, as listed on that company's latest Form D.

Sources

1. SECT2D3 Inc. Form D, filed Nov 2, 2026
2. Company siteTeam page on t2d3.pro
3. Company siteBooks by Stijn Hendrikse on t2d3.pro
4. Company siteInvestor overview on t2d3.pro