Partner, U.S. Venture Partners
Dafina Toncheva is a partner at U.S. Venture Partners. Dafina arrived in the U.S. as a teenage emigrant from Bulgaria in 1998 from there went on to receive degrees from Harvard and Stanford, hold positions with leading corporations and launch a successful early career in technology investing.
From 2010 to 2012, Dafina worked Tugboat Ventures, where she was a principal investor. Prior to Tugboat, she spent two years at Venrock, where she helped expand the firm’s investments in SaaS, virtualization, security, infrastructure and enterprise applications. Her investments include enterprise software makers Cloudflare and Aria Systems..
Before becoming a venture capitalist, Dafina held positions in development and product management at Microsoft, where she focused on authentication systems, digital signatures and business workflow. She worked on MSN Live ID and MS Office, and co-authored several key patents. Dafina has served as a Director at MATRIXX Software Inc. and Risk I/O, and as a board observer at PGP, Imperva and Cloudflare.
She earned a M.B.A. from Stanford Graduate School of Business and a B.S. in Computer Science, magna cum laude, with special focus on cryptography, efficient algorithms and database systems from Harvard University.