Outside Cash Helps UK Mid-Sized Firms Grab Listed Company Audits

December 1, 2025, 12:01 AM UTC

UK mid-sized firms have continued to increase their share of big listed company audits over recent years, although they remain locked out of the very largest audits, according to a new report.

Adviser Rankings Ltd. said Monday that mid-sized firms had increased their share of the audit market for companies listed on the FTSE 250 stock index by one-third over the past three years. However, 83% of those companies are still audited by the Big Four accounting firms—Deloitte, Ernst & Young, KPMG, and PwC.

  • The Big Four audit 97 of the 100 largest listed ...

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