Competition and Markets Authority

We help people, businesses and the UK economy by promoting competitive markets and tackling unfair behaviour. We have a new office in Manchester as well as staff in London, Edinburgh, Belfast, Cardiff and Darlington.

We have business friendly advice for businesses on how to comply with competition rules and how to call out harmful anti-competitive activity – you can find out more via our Cheating or Competing campaign page.

We have advice for consumers on how to spot, avoid and report misleading online sales practices – you can find out more via our Online Rip-Off Tip-Off campaign page.

CMA is a non-ministerial department.

Twitter: @CMAgovUK

Link to YouTube explainer film: