Not much is known about Ann Winblad's net worth due to the fact that she tends to stay out of the public eye, but ExactNetWorth estimates it to be around $15 million. 

Winblad's trek to millionaire status began when she sold accounting software company Open Systems Inc. for over $15 million in 1983, just six years after borrowing $500 from her brother to build the brand with three other people, according to Wired. After selling her company, Winblad moved to San Francisco to figure out her next moves. Just a year later, in 1984, Winblad began working as a tech consultant for IBM and Microsoft. Winblad met Bill while she was working as a consultant for Microsoft, according to Time. The venture capitalist has also invested in Microsoft stocks over the years.

Winblad was one of the first female venture capitalists in Silicon Valley, and her company, Hummer Winblad Venture Partners, had $850 million under management at the time that Winblad was inducted into the Fortune Small Business Hall of Fame in 2000, according to CNN. While Winblad's net worth does not even come close to Bill Gates' billions, Winblad has worked incredibly to build her impressive empire and her fortune is nothing to sneeze at!