Add sponsors to README.md

README.md

@@ -76,6 +76,15 @@ Login to the account at `/dashboard` and use credentials:
 - **Email:** `[email protected]`
 - **Password:** `test123`
 
+## Sponsors
+
+<p align="center">
+    <a href="https://jump24.co.uk"><img width="100px" src="https://github.com/jumptwentyfour.png" alt="Jump24"></a>
+    <a href="https://dreamtilt.com.au"><img width="100px" src="https://github.com/dreamtilt.png" alt="Dreamtilt"></a>
+    <a href="https://xyhen-it.nl"><img width="100px" src="https://github.com/xyphen-it.png" alt="Xyphen-IT"></a>
+</p>
+
+
 ## Security Vulnerabilities
 
 Please review our [security policy](https://github.com/cachethq/cachet/security/policy) on how to report security vulnerabilities.