Sunstone Management, based in California, backs generalist startups at Pre-Seed, Seed, and Series A stages, and can lead or follow investments.
7 people on the investing team, 4 of them partners who can make the call. Partners are listed first.







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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.
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Sunstone Management reports entry at pre-seed, seed, series a.
Sunstone Management has not reported a check size.
Sunstone Management has not reported a lead preference.
John Keisler (CEO & Managing Partner), John Shen (Founding Partner), Queena Zhao (Partner), Stella Zhang (Partner).
No recent activity since September 2026.
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