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Download the latest M&A review for FY 2025

As a key partner to the M&A and equity capital markets, Experian publishes regular reports on M&A activity in the UK. This is compiled using data from Experian MarketIQ, which reveals new layers of market insight by combining our global M&A database with comprehensive Companies House data and our market leading business, financial and risk databases. The reports cover UK M&A activity with commentary on trends and values in the market plus regional advisor league tables.

Experian MarketIQ is the essential market intelligence platform for any organisation or professional involved in mergers and acquisitions (M&A) or requiring direct access to comprehensive and high-quality business and financial data.

Read the full review >

Highlights

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UK M&A activity demonstrated resilience in 2025:

  • 6,742 transactions completed compared with 7,732 in 2024.
  • SME deals continued to underpin activity, with transactions below £100m representing 88% of all disclosed value deals and generating £20.3bn in aggregate value.
  • Large‑cap and mega‑deals remained influential, accounting for 87% of total deal value.
  • UK acquirers maintained a strong international outlook, with the US, Ireland, Australia and the Netherlands emerging as key expansion destinations.

UK M&A activity in 2025 demonstrated resilience and depth amid a more selective global dealmaking environment. While overall volumes moderated from the prior year, the market remained one of the most active globally, underpinned by strong SME deal flow, sustained inbound interest and continued confidence in large-cap transactions. Ongoing business transformation and sector consolidation shaped activity across technology, professional services and essential sectors, reinforcing the UK’s enduring appeal as a dynamic and investable M&A market.

Jane Turner, Research Manager, Experian MarketIQ

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Reveal new layers of market understanding

Experian MarketIQ is an essential market intelligence platform for any organisation or professional requiring direct access to comprehensive and high-quality business and financial data.

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