WorkOS hits $100M ARR

Hitting $100M this quickly shows that WorkOS is no longer just a handy SSO add on, it has become core infrastructure for startups that need to sell into enterprises almost immediately. The jump from $20M ARR in June 2025 to $100M by October 31, 2026 lines up with a market where AI software vendors need SSO, directory sync, audit logs, fraud controls, and permissions before renewal cycles force the issue, and WorkOS packages those pieces into APIs that developers can ship fast.1 2 3 4

• WorkOS started with enterprise SSO and SCIM for teams that already had auth and needed to add Okta or Microsoft login fast. It has since expanded into full identity, fraud detection with Radar, integrations with Pipes, and feature flags, which increases revenue per customer beyond a single enterprise connection.2 3 4
• The competitive split is concrete. Clerk is strongest when a startup wants prebuilt login UI and quick self serve setup. Stytch positions as a broader identity and risk layer. WorkOS is strongest when a company is moving upmarket fast and needs enterprise requirements, like self serve SSO setup, without building that stack in house.2 4 5 6
• The financing supports the scale story. WorkOS raised a $100M Series C at a $2B valuation on March 2, 2026. Reaching $100M ARR seven months later implies investors were underwriting not a niche auth utility, but a category winner in enterprise readiness infrastructure with unusually fast payback from the AI customer wave.1 7

The next leg is turning enterprise readiness into a broader control plane for human and agent access. As more software needs delegated permissions, bot detection, and secure third party actions, WorkOS can keep moving from one product sale to a larger bundle that sits deeper in the customer app and becomes harder to replace.2 4