Not all commercial operations require an authorisation from the CAA. However, everyone who flies unmanned aircraft in the Specific category, including many commercial operators, must have an authorisation from the CAA. Every unmanned aircraft operator who has been granted an operational authorisation to conduct Specific category operations will have a document from the CAA describing what they are able to do. The list of operators with CAA permission is available here:
https://www.caa.co.uk/Consumers/Unmanned-aircraft/General-guidance/Drone-operators-with-a-valid-CAA-permission-for-commercial-work/
The following is a list of aerial facilities companies in the Edinburgh city region.