According to data provided by The Institute for Mergers, Acquisitions and Alliances the largest M&A deal to ever take place in the United Kingdom (UK) was the acquisition of the German company, Mannesmann AG by the British telecoms giant Vodafone AirTouch PLC in 1999 for a value of approximately *** billion British pounds.
As of ****, this was also the largest deal to be seen in Europe.
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Institute for Mergers, Acquisitions and Alliances (IMAA). (June 3, 2024). Largest merger and acquisition (M&A) deals in the United Kingdom (UK) as of 2024 (in billion GBP) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 04, 2026, from /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/
Institute for Mergers, Acquisitions and Alliances (IMAA). "Largest merger and acquisition (M&A) deals in the United Kingdom (UK) as of 2024 (in billion GBP)." Chart. June 3, 2024. ÌÇÐÄÆƽâ°æ. Accessed August 04, 2026. /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/
Institute for Mergers, Acquisitions and Alliances (IMAA). (2024). Largest merger and acquisition (M&A) deals in the United Kingdom (UK) as of 2024 (in billion GBP). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 04, 2026. /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/
Institute for Mergers, Acquisitions and Alliances (IMAA). "Largest Merger and Acquisition (M&a) Deals in The United Kingdom (Uk) as of 2024 (in Billion Gbp)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 3 Jun 2024, /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/
Institute for Mergers, Acquisitions and Alliances (IMAA), Largest merger and acquisition (M&A) deals in the United Kingdom (UK) as of 2024 (in billion GBP) ÌÇÐÄÆƽâ°æ, /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/ (last visited August 04, 2026)
Largest merger and acquisition (M&A) deals in the United Kingdom (UK) as of 2024 (in billion GBP) [Graph], Institute for Mergers, Acquisitions and Alliances (IMAA), June 3, 2024. [Online]. Available: /statistics/1043302/value-of-largest-merger-and-acquisition-deals-in-the-united-kingdom/
