diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -3,6 +3,7 @@
 A collaborative list of great resources about RESTful API architecture, development, test, and performance. Feel free to contribute to this on-going list.
 
 * [Design](#design)
+  * [Guidelines](#guidelines)
 * [Standards](#standards)
 * [Clients](#clients)
   * [PHP](#php-clients)
@@ -43,8 +44,16 @@ the Design of Network-based Software Architectures](https://www.ics.uci.edu/~fie
 * [HATEOAS](http://timelessrepo.com/haters-gonna-hateoas) - Clear explanation on what HATEOAS is, and why you should use it.
 * [How to GET a cup of coffee](http://www.infoq.com/articles/webber-rest-workflow/)
 * [REST API Tutorial](http://www.restapitutorial.com/) - RestApiTutorial.com is dedicated to tracking REST API best practices and making resources available to enable quick reference and self education for the development crafts-person.
-* [Microsoft REST API Guidelines](https://github.com/Microsoft/api-guidelines/blob/vNext/Guidelines.md#readme) - The Microsoft REST API Guidelines, as a design principle, encourages application developers to have resources accessible to them via a RESTful HTTP interface.
 * [API-Security-Checklist](https://github.com/shieldfy/API-Security-Checklist) - Best practices about REST API security
+
+### Guidelines
+
+* [Adidas REST API Guidelines](https://github.com/adidas/api-guidelines/blob/master/rest-api-guidelines/rest.md) - Adidas REST API Guidelines define standards and guidelines for building REST APIs at adidas.
+* [Atlassian REST API design guidelines version 1](https://developer.atlassian.com/server/framework/atlassian-sdk/atlassian-rest-api-design-guidelines-version-1/) - This document provides guidelines to Atlassian developers who are designing REST APIs for Atlassian applications.
+* [Cisco REST API Guide](https://github.com/CiscoDevNet/api-design-guide) - Guidelines for designing REST APIs at Cisco.
+* [Google Cloud API design guide](https://cloud.google.com/apis/design/) - Guidelines Google follows when designing Cloud APIs and other Google APIs (REST APIs and gRPC APIs).
+* [Haufe API Style Guide](https://github.com/Haufe-Lexware/api-style-guide) - Guidelines created by Haufe-Lexware CTO team.
+* [Microsoft REST API Guidelines](https://github.com/Microsoft/api-guidelines/blob/vNext/Guidelines.md#readme) - The Microsoft REST API Guidelines, as a design principle, encourages application developers to have resources accessible to them via a RESTful HTTP interface.
 * [Restful API Guidelines by Zalando](https://github.com/zalando/restful-api-guidelines) - Developing Restful APIs: A Comprehensive Set of Guidelines.
 
 ## Standards