Tesseral

San Francisco, CA, USA
Founded 2023

Tesseral provides open source authentication infrastructure for B2B SaaS applications, offering a multi-tenant, API-first service that includes features like SAML SSO, SCIM provisioning, role-based access control, and multi-factor authentication. The company enables developers to implement comprehensive user management and authentication with just a few lines of code through their managed service or self-hosting options.

Last Updated: August 6, 2025

Current Valuation

$20M

as of May 1, 2025 (Source)

Funding Summary

$3.3M

Total reported funding

Key People

Ned O'Leary
CEO & Co-founderFounder
LinkedIn Profile
Ulysse Carion
CTO & Co-founderFounder
LinkedIn Profile
Blake Williams
Principal Software Engineer
LinkedIn Profile

Core OSS Projects

Main open source auth infrastructure for B2B SaaS with comprehensive authentication and authorization features

License: MIT

Tesseral SDK for Go programming language

License: MIT

Tesseral SDK for Node.js, Bun, and Deno runtime environments

License: MIT

Documentation content powering tesseral.com/docs

License: MIT

Business Information

Industries

Software

Technologies

Authentication
B2B SaaS
Identity Management

Sectors

EnterpriseDevelopers

Licenses

MIT

Cossmology Badge

Showcase your company's presence on Cossmology by embedding a custom badge on your website or GitHub repository.

COSS Weekly Newsletter

Stay up to date with the latest news, funding rounds, and announcements from the COSS universe.

Check out COSS Weekly on the web

All information submitted through this form is handled in accordance with the Privacy Policy of Chinstrap Community.