Klaus Tschira, 71, who founded SAP in 1972 along with four other partners, including billionaires Hasso Plattner, 68, and Dietmar Hopp, 72, gave the majority of his stake in the company to the Klaus Tschira Stiftung in 1995. The Heidelberg-based gGmbH has donated about 200 million euros to science, math and technology causes since its inception, according to its spokeswoman, Renate Ries.