Clerk
Clerk.com is a technology company based in San Francisco that specializes in authentication and user management solutions for modern web applications. Founded in 2019 by Colin Sidoti and Braden Sidoti, Clerk provides "full-stack auth" tools that enable developers to implement secure user sign-up, sign-in, and management flows efficiently.
Company facts
| Founded | 2019 (7 years) |
| Latest funding | Series C |
| Employees | 210 |
| Headquarters | San Francisco, United States |
| Trusted networks on Proven | 2 investor, bank and government networks offer Clerk to their members |
| Member offers on Proven | 1 |
| Member redemption clicks | 18 |
Company facts from Apollo.io company data. Network, offer and redemption data from the Proven platform. A Proven Score is published once publicly named clients are verified with sources.
Discounts for Proven network members
50% off for 1 year
Members redeem through their investor or bank's Proven marketplace. Terms vary by network.
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Source: Proven platform data, public records and vendor websites. Vendors cannot pay to change a score. Methodology. Updated 2026-10-21.