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+# Developer Portals
+- [Backstage.io:](https://backstage.io/) Spotify has now open-sourced Backstage (under Apache-2.0), the platform of platforms to create a great developer experience across hundreds of squads at Spotify
+- [Google Apigee](https://cloud.google.com/apigee/)   
+- [3scale](https://www.3scale.net/)
+
+## Mobile
+- [developer.android.com](https://developer.android.com/)
+- [developer.apple.com](https://developer.apple.com/)
+
+## Insurance
+- [santalucia.es](https://api-market.santalucia.es/)
+
+## Telecom
+- [Ericsson](https://ericssondeveloperapi.portal.azure-api.net/)