Civil Aviation Authority
CAA. Regulates the financial affairs and safety responsibilities of UK airlines and airports.
Competition Commission
Responsible for investigating allegations of restrictive practices and monopolies.
Office of Fair Trading
OFT. Regulates consumer protection and commercial activity.
Security Industry Authority
Manages the licensing of the private security industry as set out in the Private Security Industry Act 2001. Site has details of legislation, licensing, and related information.
The Coal Authority
Regulates the licensing of coalmines and residual functions of the former British Coal.