diff --git a/README.md b/README.md
index 4a416024..c5ad1e38 100644
--- a/README.md
+++ b/README.md
@@ -1379,6 +1379,13 @@ _Related: [Monitoring](#monitoring)_
 - [Yacy](https://yacy.net/en/index.html) - Peer based, decentralized search engine server. ([Demo](https://search.yacy.net/), [Source Code](https://github.com/yacy/yacy_search_server)) `GPL-2.0` `Java`
 
 
+### Single Sign-On (SSO)
+
+- [Kratos](https://www.ory.sh/kratos/?utm_source=github&utm_medium=AwesomeList&utm_campaign=AwesomeSelfHost) - Next-gen identity server (think Auth0, Okta, Firebase) with Ory-hardened authentication, MFA, FIDO2, profile management, identity schemas, social sign in, registration, account recovery, and IoT auth. Golang, headless, API-only - without templating or theming headaches. ([QuickStart](https://www.ory.sh/kratos/docs/quickstart/), [Source Code](https://github.com/ory/kratos)) `Apache-2.0` `Golang`
+- [PWM](https://github.com/pwm-project/pwm) - An open source password self-service application for LDAP directories ([Source Code](https://github.com/pwm-project/pwm)) `Apache-2.0` `Java`
+- [KeyCloak](https://www.keycloak.org) - Open Source Identity and Access Management ([Source Code](https://github.com/keycloak/keycloak)) Apache-2.0 `Java`
+
+
 ### Software Development
 
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