top of page
The Quiet Co-Founder: Claus Wellenreuther (1935–2026) and the SAP Story Few People Tell
Claus Wellenreuther died March 21, 2026, age 91. He built SAP's financial accounting module, exited in 1980, founded the alternative — and SAP bought it back.
Jörn Menninger
20 hours ago10 min read
bottom of page