Companies that use Clerk

Source: Analysis of Linkedin bios of 12,612 companies that use Clerk

I noticed that Clerk's customers span an incredibly diverse range of industries, but they share a common thread: they're building digital-first products that require user authentication. I see AI companies building creative tools and agentic platforms, healthcare providers modernizing patient experiences, education platforms creating learning communities, real estate and hospitality tech improving customer workflows, and financial services firms managing complex data. These aren't traditional enterprises digitizing legacy systems. They're companies where the digital product is the core business.

The stage distribution is fascinating. I see a mix of venture-backed startups at seed through Series A, bootstrapped small businesses with 11-50 employees, and some larger established companies. The funded startups show modest rounds, typically under $20M, suggesting early to mid-stage growth companies. Many list no funding at all but have small, focused teams. The employee counts are revealing: most cluster between 11-200 employees, that sweet spot where companies have product-market fit but are still scaling operations and need reliable, developer-friendly infrastructure.

Source: Analysis of tech stacks from 12,612 companies that use Clerk

I noticed that Clerk users are clearly modern, developer-first startups building AI-powered products with a product-led growth strategy. The massive overrepresentation of AI coding agents (21x more likely) and HuggingFace (7.6x more likely) tells me these companies are building intelligent applications, while the cloud infrastructure choices show they're architecting for scale from day one.

The pairing of Vercel Pro and Clerk makes perfect sense. Vercel is the go-to platform for teams shipping fast, iterating quickly, and deploying modern web applications. These companies need authentication that's just as developer-friendly and quick to implement as their deployment pipeline. The correlation with Dub, even with only 16 companies, is fascinating at 112x more likely. Dub is a link management tool for growth-focused teams, which suggests these companies are thinking deeply about user acquisition funnels and viral loops. The heavy use of both AWS and Google Cloud together indicates these aren't small hobby projects. They're companies running production AI workloads that need serious compute resources.

The full stack screams product-led growth. These companies aren't hiring big sales teams to close enterprise deals. They're building products that developers can try immediately, sign up for with minimal friction, and expand usage organically. The emphasis on developer tooling, fast deployment, and growth infrastructure tells me these are likely Series A to Series B companies that have found product-market fit and are now scaling. They need authentication that won't slow down their velocity.