Shield Capital, based in California, backs Seed-stage cybersecurity, aerospace/defense, and deep tech startups, mostly following other investors, with its latest $186M fund.
8 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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Shield Capital reports entry at seed.
Shield Capital has not reported a check size.
Shield Capital mostly follows other investors.
Philip Bilden (Founder and Managing Partner), Raj Shah (Founder and Managing Partner), John Serafini (Partner), Michael Brown (Partner).
No recent activity since September 2026.
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