diff --git a/README.md b/README.md
index 50298edc..0d33369d 100644
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+++ b/README.md
@@ -275,6 +275,7 @@ Table of Contents
   * [element.io](https://element.io/) — A decentralized and open source communication tool built on Matrix. Group chats, direct messaging, encrypted file transfers, voice and video chats, and easy integration with other services.
   * [Rocket.Chat](https://rocket.chat/) - Shared inbox for teams, secure, unlimited and open source.
   * [seafile.com](https://www.seafile.com/) — Private or cloud storage, file sharing, sync, discussions. Private version is full. Cloud version has just 1 GB
+  * [Slab](https://slab.com/) — A modern knowledge management service for teams. Free for up to 10 users.
   * [slack.com](https://slack.com/) — Free for unlimited users with some feature limitations
   * [Spectrum](https://spectrum.chat/) - Create public or private communities for free.
   * [StatusPile](https://www.statuspile.com/) - A status page of status pages. Track the status pages of your upstream providers.