Top mergers and acquisitions in United Kingdom in November 2026
Every verified merger and acquisition involving United Kingdom in this period, ranked by disclosed value. Updated every morning.
We tracked 6 deals involving United Kingdom in November 2026, 2 of them with a disclosed value, worth $10.3bn in total. The largest was Stonepeak's $10.1bn deal for Castrol, ahead of West Yorkshire Combined Authority and FirstGroup plc (West Yorkshire bus depots and fleet) at $150m.
Top mergers and acquisitions in United Kingdom in November 2026
- 12 NovStonepeak → CastrolStonepeak completes US$10bn purchase of majority stake in bp's CastrolEnergy / LubricantsCompleted$10.1bn
- 22 NovWest Yorkshire Combined Authority → FirstGroup plc (West Yorkshire bus depots and fleet)FirstGroup sells West Yorkshire bus depots and fleet for £109mTransport / Bus operationsAgreed$150m
- 32 NovLazard, Inc. → Campbell Lutyens & Co. Ltd.Lazard completes Campbell Lutyens deal and launches Lazard CLFinancials / Private capital advisoryCompletedUndisclosed
- 43 NovCinven → TheramexCinven agrees to buy women's health drugmaker Theramex from Carlyle and PAIHealthcare / Specialty pharmaceuticalsAgreedUndisclosed
- 53 NovBiffa → Enva's general recycling businesses in Scotland and EnglandBiffa agrees to buy Enva's recycling operations in Scotland and EnglandIndustrials / Waste managementAgreedUndisclosed
- 64 NovPAI Partners → ELEMISPAI Partners agrees to buy ELEMIS from L'OccitaneConsumer / Prestige skincareAgreedUndisclosed