EEburyraised$700M·Growth|SStarcloudraised$200M·Growth|FFunraised$72M·Series A|SStandard Intelligenceraised$75M·Series A|NNetomiraised$110M·Series C|PParallel Web Systemsraised$100M·Series B|RRogoraised$160M·Series D|HHightouchraised$150M·Series D|TTrue Anomalyraised$650M·Series D|SSaronicraised$1.75B·Series D|AAvocaraised$125M·Series B|SSiFiveraised$400M·Series G|SSidewinder Therapeuticsraised$137M·Series B|HHermeusraised$350M·Series C|WWHOOPraised$575M·Series G|
WorkOSWO
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WorkOS

Enterprise-ready auth APIs for B2B applications

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SAASSeries BEst. 2018100–200 employeesSan Francisco

WorkOS provides enterprise authentication APIs that let developers add SSO, SCIM directory sync, audit logs, and fine-grained authorization to their apps in hours instead of months. It's the infrastructure layer that makes any SaaS app enterprise-ready — used by Perplexity, Vercel, Loom, and hundreds of startups.

Total Raised$80M
Kleiner PerkinsSequoiaTiger Global

Founders

M
Michael Grinich
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