diff --git a/README.md b/README.md
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@@ -277,6 +277,7 @@ Table of Contents
   * [talky.io](https://talky.io/) — Free group video chat. Anonymous. Peer‑to‑peer. No plugins, signup, or payment required
   * [Tefter](https://tefter.io) - Bookmarking app with a powerful Slack integration. Free for open-source teams.
   * [TeleType](https://teletype.oorja.io/) — share terminals, voice, code, whiteboard and more. no sign-in required, end-to-end encrypted collaboration for developers.
+  * [Tree Schema](https://treeschema.com/) — Data catalog and metadata management with APIs to manage data lineage as code. Free for teams of up to 5 users.
   * [twist.com](https://twist.com) — An asynchronous-friendly team communication app where conversations stay organized and on-topic. Free and Unlimited plans available. Discounts provided for eligible teams.
   * [typetalk.com](https://www.typetalk.com/) — Share and discuss ideas with your team through instant messaging on the web or on your mobile
   * [Tugboat](https://tugboat.qa) - Preview every pull request, automated and on-demand. Free for all, complimentary Nano tier for non-profits.