Clerk is a privately held company. It is backed by 10 investors on record, including Anthology Fund and Menlo Ventures.

Where is Clerk headquartered?

Clerk is headquartered in San Francisco, United States.

Who is the CEO of Clerk?

Colin Sidoti is the CEO of Clerk.

Colin Sidoti and Braden Sidoti are co-founders of Clerk, founded in 2020.

Clerk

IAMSan Francisco, United Statesfounded 2020privateclerk.com ↗

Clerk is a cybersecurity company specializing in IAM, founded in 2020 and headquartered in San Francisco, United States. It has raised $134.5M in equity across 8 priced rounds, employs about 208 people, and is privately held.

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updated Oct 11, 2026

Latest Clerk news and company activity

What Clerk did, dated — selected moves from the record, one per kind, newest first.

Feb 2021Product launchWe couldn't be more excited to launch Clerk and help developers solve all of user management

2 events tracked since Feb 2021 · selected events shownUnlock the complete Clerk timeline

Clerk Momentum score

66/ 100

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Clerk products

ClerkAuthentication and user management platform with pre-built UI componentsDetails ↗

Clerk funding

Clerk has raised $134.5M in priced equity. Its most recent round was a Series C in October 2025. It has 8 funding rounds on record: Pre-Seed, Seed, Seed, Seed, Series A, Series B, Series B, and Series C. 10 investors are on record, including Anthology Fund and Menlo Ventures.

Equity raised: $134.5M8 priced rounds
Last round: Series COct 2025

View the complete funding history

Clerk employees and hiring

As of September 2026, Clerk has about 208 employees.

Employees: 208
30-day change: 0%
Open roles: 0

See hiring trends

Clerk competitors

Competitors of Clerk include Auth0, Microsoft, and Zip Security. 4 more are in the platform, with overlap scoring.

ranked by CybersecTools comparison demand, 90 days

View all 7 competitors with overlap scores

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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security
Competitorsfull set, overlap scored
Leadershipevery exec, with roles
Customersnamed publicly, with sources
Reviews & newssentiment, coverage, cadence

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Funding, round by round, with the investors
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The other 440 data points.

Funding historyevery round, every investor named
Headcount growthvelocity, departments, seniority
Open jobslive postings, hiring pace, role mix
Tech stackframeworks, clouds, security

Similar in IAM

Common questions about Clerk.

How much funding has Clerk raised?: Clerk has raised $134.5M in priced equity. Its most recent round was a Series C in October 2025. It has 8 funding rounds on record: Pre-Seed, Seed, Seed, Seed, Series A, Series B, Series B, and Series C. 10 investors are on record, including Anthology Fund and Menlo Ventures.
How many people work at Clerk?: As of September 2026, Clerk has about 208 employees.
Who owns Clerk?: Clerk is a privately held company. It is backed by 10 investors on record, including Anthology Fund and Menlo Ventures.
Where is Clerk headquartered?: Clerk is headquartered in San Francisco, United States.
Who is the CEO of Clerk?: Colin Sidoti is the CEO of Clerk.
Who founded Clerk?: Colin Sidoti and Braden Sidoti are co-founders of Clerk, founded in 2020.
Who are Clerk's competitors?: Competitors of Clerk include Auth0, Microsoft, and Zip Security. 4 more are in the platform, with overlap scoring.
What does Clerk do?: Clerk is a cybersecurity company specializing in IAM, founded in 2020 and headquartered in San Francisco, United States.