Bruce Jaffe is a General Partner with over 25 years in technology operations and investing. He held roles at Microsoft, including Corporate Vice President and CFO, and was CEO of Donuts, Inc., with degrees from UC Berkeley and Stanford.
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Raising a pre-seed or seed round? We write $1M to $5M first checks and help founders with distribution. A partner reads every deck.
Send your deckBruce Jaffe is a General Partner with over 25 years in technology operations and investing. He held roles at Microsoft, including Corporate Vice President and CFO, and was CEO of Donuts, Inc., with degrees from UC Berkeley and Stanford.
J4.Ventures has not reported a check size. It invests at pre-seed, seed, series a.
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Corporate Vice President, Corp Dev - Head of M&A and Investments at Microsoft; CFO $2.5B Online Division at Microsoft; Global Head of Business Development at Microsoft; CEO at Donuts, Inc.; Microsoft.
Last updated 2026-10-15. Is this you? Ask for a correction.