Clerk
Clerk provides embeddable UI components, flexible APIs, and an admin dashboard to authenticate and manage users without building auth from scratch. It supports passkeys, social login, SMS, and multi-factor auth with pre-built React components that match your app's design. Over 20,000 projects use Clerk in production, making it the fastest-growing auth platform for developers.
- Location
- San Francisco, USA
- Raised
- $57M
- Stage
- Series B
- Founded
- 2020
- Category
- SaaS
- Funding
- VC-backed
- Team
- 50–100
Funding figures as of Jul 2025 · not independently verified
Founders of Clerk
- Colin Sidoti
- Braden Sidoti
Investors backing Clerk
- Andreessen Horowitz
- Tiger Global
Frequently asked questions
What does Clerk do?
Clerk provides embeddable UI components, flexible APIs, and an admin dashboard to authenticate and manage users without building auth from scratch. It supports passkeys, social login, SMS, and multi-factor auth with pre-built React components that match your app's design. Over 20,000 projects use Clerk in production, making it the fastest-growing auth platform for developers.
Where is Clerk based?
Clerk is based in San Francisco, USA.
When was Clerk founded?
Clerk was founded in 2020.
How much has Clerk raised?
Clerk has raised $57M in their Series B round as of Jul 2025.
Who founded Clerk?
Clerk was founded by Colin Sidoti, Braden Sidoti.
Who has invested in Clerk?
Clerk is backed by Andreessen Horowitz, Tiger Global.
How Clerk would pitch themselves
○ Auto-generated01Target customer
Business teams looking for modern saas tooling — replacing legacy software or building net-new workflows in this category.
02Problem they solve
Clerk provides embeddable UI components, flexible APIs, and an admin dashboard to authenticate and manage users without building auth from scratch. It supports passkeys, social login, SMS, and multi-factor auth with pre… The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Clerk differentiates on user management that just works. Backed by Andreessen Horowitz + Tiger Global, $57M raised — the company has resources + validation to compound this thesis. Founded by Colin Sidoti + team.
04Go-to-market strategy
Growth-stage GTM — multi-channel revenue motion (direct enterprise sales, channel partnerships, marketplace listings). Vertical specialisation + verticalised AE teams targeting enterprise + mid-market.