Stan Reiss is a General Partner at Matrix Partners, focusing on early-stage venture capital. He emphasizes being the first investor and advises entrepreneurs to avoid overconfidence and to sell their team.
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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 deckStan Reiss is a General Partner at Matrix Partners, focusing on early-stage venture capital. He emphasizes being the first investor and advises entrepreneurs to avoid overconfidence and to sell their team.
Matrix Partners has not reported a check size. It invests at pre-seed, seed, series a.
Email [email protected], the firm's inbox for founders, and name Stan in the subject. A warm intro from a founder Matrix Partners backed works better.
Last updated 2026-10-15. Is this you? Ask for a correction.