The Register of Data Controllers is a listing of over 500,000 registered operators that process personal information in the UK. Anyone that deals with personal information and data privacy must register with the Information Commissioners Office. The Data Protection register is searchable by number, name, address and postcode. Details covered include name and address, registration number, level of fee, date of fee and expiry, other trading names and the name and contact for the DPO.
The information covers fee payers to the ICO unless they are exempt.
Domestic CCTV owners are not required to publish their address so they will not be found using an address search. You may also download the Data Protection Register.