John Keisler

John Keisler

CEO & Managing Partner atSunstone ManagementSouthern California

John Keisler is CEO and Managing Partner at Sunstone Management, a venture capital firm in Southern California. He previously served as Economic Development Director for the City of Long Beach.

What John can write

Writes checks ofNot reported
Comes in atPre-seed, Seed, Series ALead preference not reported
Email the firm[email protected]The firm's own inbox for founders.

Career

  1. City of Long Beach · Economic Development Director
  2. Sunstone Management, Inc. · CEO & Managing Partner
    Now

Focus

early-stage technology startupspublic-private-partnershipsventure capital

Also at Sunstone Management

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Questions

Who is John Keisler?

John Keisler is CEO and Managing Partner at Sunstone Management, a venture capital firm in Southern California. He previously served as Economic Development Director for the City of Long Beach.

How much does John Keisler invest?

Sunstone Management has not reported a check size. It invests at pre-seed, seed, series a.

How do I pitch John Keisler?

Email [email protected], the firm's inbox for founders, and name John in the subject. A warm intro from a founder Sunstone Management backed works better.

What did John Keisler do before Sunstone Management?

Economic Development Director at City of Long Beach.

Last updated 2026-10-15. Is this you? Ask for a correction.