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Merger investigation outcomes

Outcomes of merger investigations carried out by the CMA under the Enterprise Act 2002.

Updates to this page

From:
Competition and Markets Authority
Published:
7 May 2014
Last updated:
12 October 2026
Show all updates

  1. Data for September added to the page

  2. Data for August added to the page

  3. Data for July added to the page

  4. Data for June added to the page

  5. Data for May added to the page

  6. Data for April added to the page

  7. Data for February added to the page

  8. Data for January added to the page

  9. Investigation outcomes for January to December 2025 published.

  10. Data for December added to the page

  11. Data for November added to the page

  12. Data for October added to the page

  13. Data for August added to the page

  14. Data for July added to the page

  15. Data for June added to the page

  16. Data for April added to the page

  17. Data for March added to the page

  18. Data for February added to the page

  19. Data for January added to the page

  20. More information about our annual merger investigation outcomes published.

  21. Data for December added to the page

  22. Data for November added to the page

  23. Data for October added to the page

  24. Data for September added to the page

  25. Data for August added to the page.

  26. Data for July added to the page

  27. Data for June added to the page

  28. Data for May added to the page

  29. Data for April added to the page

  30. Data for March added to the page

  31. Data for February added to the page

  32. Data for January added to the page

  33. Data for October added to the page

  34. Data for September added to the page

  35. Data for August added to the page

  36. Merger inquiry outcome statistics to July 2023 published.

  37. Data for June 2023 added to the page.

  38. Data for May 2023 added to the page.

  39. April stats added to the page.

  40. Data for March 2023 added.

  41. Merger inquiry outcome statistics updated.

  42. Merger inquiry outcome statistics updated.

  43. Merger outcome statistics updated.

  44. Merger inquiry outcome statistics to 31 October 2022 published.

  45. Merger inquiry outcome statistics to September 2022 published.

  46. Merger inquiry outcome statistics updated.

  47. Merger inquiry outcome statistics to July 2022 published.

  48. Merger inquiry outcome statistics to June 2022 published.

  49. Merger inquiry outcome statistics to May 2022 published.

  50. Merger inquiry outcome statistics to April 2022 published.

  51. Merger inquiry outcome statistics until December 2021 published.

  52. Merger inquiry outcome statistics until November 2021 published.

  53. Merger inquiry outcome statistics until October 2021 published.

  54. August merger inquiry outcome statistics published.

  55. July 2021 merger inquiry outcome statistics published.

  56. June merger inquiry outcome statistics published.

  57. Merger inquiry outcome statistics updated.

  58. March 2021 statistics added.

  59. January 2021 statistics added.

  60. December 2020 statistics added.

  61. November 2020 statistics added.

  62. October 2020 statistics added.

  63. September statistics added.

  64. Updated statistics to August 2020.

  65. Updated statistics to July 2020.

  66. Updated statistics to May 2020.

  67. Updated statistics to April 2020.

  68. February statistics added.

  69. Updated statistics to January 2020.

  70. Updated statistics to December 2019.

  71. Updated statistics to September 2019.

  72. Updated statistics to August 2019.

  73. Updated statistics to July 2019.

  74. Updated statistics to June 2019.

  75. Updated statistics to May 2019.

  76. Updated statistics to April 2019.

  77. Updated statistics to March 2019.

  78. Updated statistics added for February 2019.

  79. Updated statistics to January 2019.

  80. Updated statistics added for October 2018.

  81. Updated statistics added for September 2018.

  82. Updated statistics added for August 2018.

  83. Merger inquiry outcomes for July published.

  84. Merger inquiry outcomes published.

  85. Merger inquiry outcomes published.

  86. April 2018 outcomes spreadsheet attached.

  87. Updated statistics added for March 2018.

  88. Updated statistics added for February 2018.

  89. Updated statistics added for January 2018.

  90. Updated statistics added for December 2017.

  91. Updated statistics added for November 2017.

  92. Updated statistics added for October 2017.

  93. Updated statistics added for September 2017.

  94. Updated statistics added for August 2017.

  95. Updated statistics added for July 2017.

  96. Updated statistics added for June 2017.

  97. Updated statistics added for May 2017.

  98. Updated statistics added for April 2017.

  99. Updated statistics added for March 2017.

  100. Updated statistics added for February 2017.

  101. Updated statistics added for January 2017.

  102. Updated statistics added for December 2016.

  103. Updated statistics added for November 2016.

  104. Updated statistics added for October 2016.

  105. Updated statistics added for September 2016.

  106. Updated statistics added for August 2016.

  107. Updated statistics added for July 2016.

  108. Updated statistics added for June 2016.

  109. Updated statistics added for May 2016.

  110. Updated statistics added for April 2016.

  111. Updated statistics added for March 2016.

  112. Updated statistics added for February 2016.

  113. Updated statistics added for January 2016.

  114. Updated statistics added for December 2015.

  115. Updated statistics added for November 2015.

  116. Updated statistics added for October 2015.

  117. Updated statistics added for September 2015.

  118. Updated statistics added for August 2015.

  119. Updated statistics added for July 2015.

  120. Updated statistics added for June 2015.

  121. Updated statistics added for May 2015.

  122. Updated statistics added for April 2015.

  123. Updated statistics added for March 2015.

  124. Updated statistics added for February 2015.

  125. Updated statistics added for January 2015.

  126. Updated statistics added for December 2014.

  127. Updated statistics added for October 2014.

  128. Merger statistics added for July 2014

  129. Updated statistics for May 2014.

  130. First published.

Documents

Annual merger investigation outcomes

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Merger inquiry outcome statistics

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Details

The Competition and Markets Authority (CMA) investigates certain potential mergers and assesses how they could impact competition in the UK.

We can only investigate a merger if it meets certain legal criteria. If it does, we can take evidence-based, proportionate action to protect competition, deliver growth and promote better outcomes for UK consumers.

This page includes:

  • an overview of how many mergers we investigated, and their outcomes, in the full calendar years from 2023 to 2025

  • the outcomes of all merger investigations completed in each financial year, from 1 April 2004 to the latest full month

Visit the CMA case finder for a list of CMA investigations.

More information about overall UK merger activity is available from the Office for National Statistics’s quarterly statistical bulletin on mergers and acquisitions involving UK companies.

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