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Sunstone Management

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About Sunstone Management

A diversified private capital firm investing in early-stage technology entrepreneurs, built on three stated pillars: founder-focused capital and technical assistance, scalable modern technology across sectors, and financially, socially, and environmentally sustainable businesses.

JK

John Keisler

CEO & Managing Partner

Previously the Economic Development Director for the City of Long Beach, where he led an award-winning economic development blueprint and helped drive a historic increase in private-sector investment in the city.

JS

John Shen

Founding Partner

Holds an MS in Statistics and Decision Sciences from Duke University. Previously served on the Long Beach Economic Development Commission and currently sits on the City of Irvine Innovation Council; recipient of Duke's Forever Duke award and the Coleman Report's SBA 504 Lender of the Year.

SZ

Stella Zhang

Partner

Holds an MBA from UC Irvine's Paul Merage School of Business. Helped grow Sunstone into an ecosystem builder and startup sponsor, forming its partnership with Cal State Long Beach and co-founding the Long Beach Institute for Innovation and Entrepreneurship.

Boom TechnologyAvisi TechnologiesClosed Loop PlasticsEvolectricCurrent SurgicalCombinatiBasilard BioTechEducational Vision Technologies

Runs the Startup Resources and Startup Perks programs for founders, and helped found the Long Beach Institute for Innovation and Entrepreneurship (IIE) alongside the City of Long Beach and Cal State Long Beach. The Stella Zhang New Venture Competition, part of that partnership, is named for Sunstone partner Stella Zhang.

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Free to use in articles, research, and reference works. Stable URL, will not change. Data on this page last updated September 11, 2026.

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"Sunstone Management: Investor Profile." SoCal.Startups, September 11, 2026, https://socalstartups.io/investors/sunstone-management. Accessed September 28, 2026.
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SoCal.Startups. (2026). Sunstone Management: Investor Profile. Retrieved September 28, 2026, from https://socalstartups.io/investors/sunstone-management
WIKIPEDIA (CITE WEB)
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Location
Irvine, CA
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