The regulatory bodies
The lead supervisory authority for the UK is the Information Commissioner’s Office,
“The ICO is the UK’s independent body set up to uphold information rights.”
Identifying a lead supervisory authority for organisations depends on determining the location of the controller’s ‘main establishment’ or ‘single establishment’ in the EU.
The follow guidance document will help:
Download & view (PDF): Guidelines for identifying a controller or processor’s lead supervisory authority