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The OFT closed on 31 March 2014 and this website is no longer being updated. The OFT's work and responsibilities have passed to a number of different bodies. Read more.


The OFT obtains and reviews information relating to merger situations and, where necessary, refers any relevant mergers to the Competition Commission for further investigation if it is felt that it will lead to a substantial lessening of competition within any market for goods or services in the UK.



Use this section to gain background knowledge of the work that they OFT does around mergers to ensure markets remain competitive.

What's new 10 - 14 February 2014

10 February

The Shire Pharmaceuticals Group / Viropharma Incorporated - cleared

11 February

Mueller Industries Inc / KME Yorkshire Ltd - cleared

IP Group / Fusion IP - merger notice

12 February

ITV Variation of Undertakings - variation of undertakings review

14 February

First Manchester Limited / Finglands Coachways Limited - full text of decision published

Iress UK Holdings Limited / Avelo FS Holdings Limited  - cleared 




Mergers work
Merger cases - active work

Access information on current active merger cases.

Mergers completed work - decisions

See merger decisions for:

  • all merger decisions made in the last four weeks
  • a full list of this year's merger decisions
  • details of recent clearances and referrals to the Competition Commission. 


The merger case search facility is on the merger cases page.

Merger consultations

Other mergers work areas
Mergers undertakings register

The mergers undertakings register is a public register that provides the text of any undertakings accepted or orders made under Part 3 of the Enterprise Act 2002.

Undertakings Register

Mergers cases under the Fair Trading Act

These pages detail merger cases that have been decided under the merger provisions of the Fair Trading Act since August 2000.

Under Fair Trading Act

Register of orders and undertakings

The Register provides details of orders made and undertakings currently in force under the monopoly and mergers provisions of the Fair Trading Act 1973.

Register of Orders and Undertakings under the Fair Trading Act

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