Anchored to UK statute. Last verified 21 June 2026. View source-of-record.

maduediligencechecklist.co.uk

The UK M&A Due Diligence Checklist

Tier-2

BDO UK - due diligence services


Largest of the UK Tier-2 firms by deal volume. Broad sector reach from £5m to £250m+ EV with separate Big Four-style M&A advisory.

Direct answer

BDO UK is a UK Tier-2 transaction-services firm. UK fees are quote-only: the firm publishes service descriptions, not rate cards. Engagement scopes are issued per workstream after a 5-10 working-day discovery window.


Workstreams covered

  • FDD
  • Tax DD
  • QoE
  • VDD
  • Commercial DD
  • M&A advisory

Sector focus

  • Technology
  • Financial services
  • Real estate
  • Energy

Pricing approach

Quote-only. Fees scale with EV, jurisdiction count and complexity. Engagement letter issued per workstream.

Source: www.bdo.co.uk - verified 2026-06-21.

When to instruct

Tier-2 firms are the natural fit for £5-50m EV UK deals. Scope can be tailored to QoE-light, full FDD or full transaction services. Mid-market PE-backed groups will already have a panel.


Reviewed by Oliver Wakefield-Smith, Founder, Digital SignetLast verified 21 June 2026

This page is anchored to UK primary legislation and named regulator guidance only. Not legal advice. Confirm position with your appointed adviser before signing.