About Clerk
Clerk is a Technology company based in San Francisco (United States) founded in 2019 by Colin Sidoti and Braden Sidoti. Clerk is focused on providing authentication and user management solutions. It operates on a SaaS (Software-as-a-Service) and Subscription Services model. Clerk has raised $134.3 million across 7 funding rounds from investors including Stripe, Netlify and Andreessen Horowitz. Its chief executive, as recorded, is Colin Sidoti. Its website clerk.com draws about 1.4 million monthly visits. Clerk offers products and services including User Authentication, Organizations Management, and Billing Solutions. Its focus areas include Software and Authentication Solutions. Its legal entity is Clerk, Inc. Its competitors include GlobaliD, Authzed and Descope; 3 of its 3 listed competitors have raised funding.
Company details
Clerk is engaged in delivering comprehensive authentication and user management solutions for businesses. Services are provided across various sectors, including B2B SaaS, with a focus on multi-tenancy features. Solutions such as user sign-in, profile management, organization management, and subscription billing are offered to help companies launch faster and scale efficiently. Security and compliance are prioritized through SOC 2 and CCPA adherence, alongside features like multifactor authentication and fraud prevention.
- Total Equity Funding$134.3M (USD)
in 7 rounds
- Latest Funding Round$50M (USD), Series C
Jun 2025
- InvestorsStripe
& 11 more
Products & Services of Clerk
Clerk offers a comprehensive portfolio of products and services, including User Authentication, Organizations Management, and Billing Solutions.
User sign-in and profile management are provided securely.
Organization creation and account switching are facilitated efficiently.
Subscription plans and payment processing are managed seamlessly.
Apps and channels of Clerk
its YouTube channel Clerk has 6.85K subscribers and 18 videos.
Videos from Clerk
The most watched videos on Clerk's YouTube channel, Clerk (6.85K subscribers). Click a video to play it here.
More on Clerk.
Funding Insights of Clerk
Clerk has successfully raised a total of $134.3M across 7 strategic funding rounds. The most recent funding activity was a Series C round of $50 million completed in June 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.
- Total Funding $134.3M
- Total Rounds 7
- Last Round Series C — $50M
- First Round $4M
(Jul 2021)
- Investors Count 12
All 7 funding rounds of Clerk with amounts and investors; the two latest post-money valuations are shown, the rest are part of the premium plan.
| Date | Amount | Transaction Name | Valuation | Lead Investors | Investors |
|---|---|---|---|---|---|
| Jun 2025 | $50M | Series C | – | – | – |
| Jan 2024 | $30M | Series B | – | CRV | |
| Jun 2023 | $29M | Series A | – | – | – |
| Mar 2023 | $15M | Series A | – | Madrona Venture Group | |
| Nov 2022 | $6.2M | Seed | – | Martin Casado | |
| Jul 2022 | $100,000 | Seed | – | – | |
| Jul 2021 | $4M | Seed | – | S28 Capital |
12 investors in total: 9 institutional and 3 angel.
Investors in Clerk
Clerk has secured backing from 12 investors, including institutional, venture fund, and angel investors. Prominent investors backing the company include Stripe, Netlify and Andreessen Horowitz.
| Investor | Description | Founded Year | Domain | Location |
|---|---|---|---|---|
Venture capital investments in technology sectors are handled by Andreessen Horowitz. | a16z.com | |||
Venture capital investing in AI, biotech, and technology sectors, focusing on seed and early stages in Seattle and beyond. | madrona.com | |||
CRV is recognized as a venture capital firm investing in technology startups. | crv.com | Palo Alto, United States | ||
Investments are directed toward early-stage B2B software and tech companies. | s28capital.com | San Francisco, United States | ||
Seed and early-stage enterprise software companies are targeted for investment. | mangocap.com | Los Altos, United States | ||
| fathomcap.com | ||||
Sector-agnostic incubation and venture capital are provided across multiple sectors. | southparkcommons.com | San Francisco, United States | ||
Payment processing and card issuance solutions are provided for businesses. | 2009 | stripe.com | San Francisco, United States | |
Cloud-based software for continuous application development and deployment. | 2013 | netlify.com | San Francisco, United States | |
GR Guillermo Rauch | Founder of Vercel, creator of Next.js, active angel investor in tech startups. | unknown_b74276109ba24cd9a |
Investor details for Clerk
The complete investor list, round-by-round participation and investor portfolios require an active premium plan.
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People of Clerk
2 people are tracked at Clerk (2 in leadership).
| Name | Role | Group |
|---|---|---|
Colin Sidoti | Co-Founder & CEO | Leadership |
Braden Sidoti | Co-Founder & CTO | Leadership |
Complete people profiles for Clerk
Full employee and board profiles, team structure, tenure and professional contact details require an active premium plan.
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Timeline of Clerk
3 dated milestones of Clerk across 6 years, from founding to its latest funding, stage changes and deals.
- Founded Clerk is founded.
- Funding First funding round of $4.0M.
- Funding Latest funding round, Series C, of $50.0M.
Competitors of Clerk
Clerk has 3 listed competitors in our database, 3 of them funded. They include GlobaliD, Authzed and Descope.
| Company Name | Domain | Founded | HQ Location | Total funding | Employees | Description |
|---|---|---|---|---|---|---|
| global.id | 2015 | Oakland, United States | $12M | 173 | User-managed identity and access control solutions are provided securely. | |
| authzed.com | 2010 | New York, United States | $15.9M | Cloud-based API for user authorization is offered. | ||
| descope.com | 2022 | Los Altos, United States | $88M | A customer identity and access management platform is provided. |
Detailed competitors of Clerk
The full competitor set, operating metrics and side-by-side benchmarks require an active premium plan.
- Full competitor set
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Web traffic of Clerk
The website of Clerk (clerk.com) receives about 1.4M visits a month and ranks #38,873 among all websites worldwide, #1,024 in Business and Consumer Services.
- Monthly visits1.4M
▲ 18.2% vs previous month
- Unique visitors320.5K
per month
- Global rank#38,873
among all websites
- Category rank#1,024
Business and Consumer Services · Business and Consumer Services
- Bounce rate35%
- Pages per visit5.6
- Average visit4 min 17 sec
- DevicesDesktop 72% · Mobile 28%
Websites whose visitors overlap most with Clerk. Affinity shows how closely the audiences match.
| Website | Domain | Audience affinity | Monthly visits | Global rank | Profile |
|---|---|---|---|---|---|
| medium.com | 100% | 83.7M | #635 | View details | |
| ycombinator.com | 62% | #3,426 | View details | ||
| linktr.ee | 60% | 205.6M | #263 | View details | |
| vercel.com | 32% | 16.9M | #2,507 | View details |
Top companies in Cybersecurity & Data Protection
3 companies that operate in the same segment as Clerk (Cybersecurity & Data Protection) in United States, ranked by their profile score on The Company Check.
| Company | Description | Founded | Location | Total funding | Revenue | Employees |
|---|---|---|---|---|---|---|
Cloud based website security solutions | 2009 | San Francisco, California, United States | USD 332.1 M | USD 1.67 B | 7,330 | |
Cybersecurity and zero trust solutions are delivered for secure networks. | 2007 | San Jose, California, United States | USD 148 M | USD 3.35 B | 9,616 | |
Cloud-based identity management solutions are provided for enterprises. | 2002 | Denver, Colorado, United States | USD 136.89 M | USD 36.94 M | 821 |
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Related news about Clerk
Complete news archive for Clerk
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Frequently Asked Questions about Clerk
Clerk was founded in 2019 and raised its 1st funding round 2 years after it was founded.
Clerk is headquartered in San Francisco, United States. It is registered at San Francisco, California, United States.
Colin Sidoti is the CEO of Clerk, as recorded in our data. They have also founded this company.
Clerk is a funded company, having raised a total of $134.3M across 7 funding rounds to date. The company's 1st funding round was a Seed of $4M, raised on Jul 2021.
Clerk is engaged in delivering comprehensive authentication and user management solutions for businesses. Services are provided across various sectors, including B2B SaaS, with a focus on multi-tenancy features. Solutions such as user sign-in, profile management, organization management, and subscription billing are offered to help companies launch faster and scale efficiently. Security and compliance are prioritized through SOC 2 and CCPA adherence, alongside features like multifactor authentication and fraud prevention.
Clerk offers User Authentication, Organizations Management, and Billing Solutions.
Clerk has 12 investors. Key investors include Stripe, Netlify, Andreessen Horowitz, Madrona, and CRV.
Clerk operates through Clerk, Inc..
The website of Clerk receives about 1.4 million visits a month and ranks #38,873 among all websites worldwide.