Clerk Raises $15 Million in Series A

by Kay Aloha Villamor in March 23rd, 2023

Clerk, a San Francisco, CA-based drop-in authentication and user management solution for React, announced that it raised $15 million in Series A funding.

The round was led by Madrona, with managing director Karan Mehandru joining its board. Other new investors include Vercel's CEO Guillermo Rauch, Mango Capital, and Auth0's former CRO Dave Wilner. Existing investors Andreessen Horowitz, S28 Capital, and Fathom Capital also participated.

With this new funding, Clerk will accelerate its roadmap beyond authentication. It aims to help developers with authorization, which requires knowledge of a user's role and permissions, as well as their billing plan and entitlements.

"The response from React and Next.js developers has been incredible. Monthly active users have grown 500% in the past 5 months, and we've crossed a million managed users," said co-founder and CEO, Colin Sidoti. "When we met Karan, we were excited to tap into his experience in identity and in scaling go-to-market as we target the next generation of application development."

Clerk will provide the glue that binds these systems together, while also empowering React developers to build authorization controls for their end-users.

Company: Clerk Inc.

Raised: $15.0M

Round: Series A

Funding Month: March 2023

Lead Investors: Madrona

Additional Investors: Guillermo Rauch, Mango Capital, Dave Wilner, Andreessen Horowitz, S28 Capital, and Fathom Capital

Company Website:

Software Category: Authentication and User Management

About the Company: Clerk develops a software application to provide a sign-up and sign-in page for any website and profile management. The company's platform provides a security and authentication experience to any website, enabling B2B businesses to control their account security with multi-factor authentication while preventing hacking threats. Clerk's vision is to build a truly complete customer management solution for developers, helping facilitate authentication, authorization, communications, billing, and more. The company believes these essential services can all be bundled together and presented cohesively in simple React components.



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