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VC firm

Sunstone Partners

Kingmaker TierBased on the data VC Catalog holds.

Kingmaker Tier: 81 out of 100

Investor type
VC
Headquarters
San Mateo, CA, United States
Check size
Check size: $75M - $200MSource (opens in a new tab)
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Record updated 30 September 2026

About

Sunstone Partners is a growth-oriented private equity firm that invests in AI- and technology-enabled services and software companies.

Investment approach

Thesis
We seek to partner with exceptional entrepreneurs, often as their first institutional capital partner, to help accelerate organic growth and fund acquisitions.Source (opens in a new tab)
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