Carquinez Holdings LLC
A California limited liability company that builds and operates consumer and developer software. Based in the San Francisco Bay Area and independently owned.
What we operate
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Duffers Anonymous
An iOS app for running a golf trip — the schedule, the scorecard, the side games, the group chat, and who owes whom at the end of it.
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SureVett
A free Chrome extension that grades any Amazon product A–F for fake reviews, and shows the reasoning behind the grade.
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PathToShip
A free production-readiness scan of any GitHub repository, reporting across security, scalability and five further dimensions.
Company record
- Legal name
- Carquinez Holdings LLC
- Entity type
- Limited liability company, organized in California
- Formed
- 2026
- D‑U‑N‑S number
- 149911479
- Principal address
- 1418 Stonehedge Dr
Pleasant Hill, CA 94523
United States - Contact
- nathan@carquinezholdings.com