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Est. 1987 · City of London

Thirty-nine years of being right before anyone had to prove it in court.

Most commercial disputes are decided in the weeks before a claim is ever filed — in the conversations a client has before instructing counsel to run. That is the decision we are built to advise on.

11 Partners 6 Counsel 28 Associates One office, by design
How We Think

The eight ideas that run through every mandate.

Not marketing copy. Working positions, written by the partners who hold them, that shape how we advise from the first phone call.

Read all eight essays
Litigation is a business decision wearing legal clothing. Our job is to advise on the decision, not just the clothing.
The Mandate Journey™ · Matter 01

£340m fraud claim against a global investment bank

Commercial Litigation — trial before the Commercial Court, London.

Dismissed in full
Every head of claim rejected at trial, with costs awarded to our client
  1. Challenge

    Client Challenge

    A £340m fraud claim threatened to dominate the bank's next two years and unsettle counterparties mid-transaction.

  2. Strategy

    Legal Strategy

    We built the defence around forensic reconstruction of the disputed transactions rather than procedural delay.

  3. Turning Point

    Turning Point

    Cross-examination of the claimant's own expert conceded the central factual premise of the claim.

  4. Outcome

    Outcome & Business Impact

    Full dismissal preserved the bank's standing with regulators and counterparties through the trial period.

Leadership

The people clients call first.

CS

Charles Stone

Senior Partner · Commercial Litigation
Co-founder, 1987. Leads the firm's largest commercial fraud and contractual disputes.
EW

Eleanor Whitfield

Managing Partner · International Arbitration
Chambers "Star Individual." Trained in Paris; joined the firm in 1998.
DO

David Okonjo-Reid

Partner · Financial Regulation
Joined 2011 from the FCA's enforcement division.
PA

Priya Anand

Partner · Insolvency & Restructuring
Lateral hire, 2015. Advises boards through cross-border restructurings.
All 20 Lawyers
The Library

Thirty-nine years of accumulated knowledge.

Essays. Client guides. Analysis of landmark cases. Five-minute board briefings. Long-form research. Everything the partnership has published, since 1987.

Insights

Short-form commentary on developing disputes and decisions.

Publications

Substantial papers on arbitration, fraud and regulatory practice.

The Boardroom

Five-minute reads written for the executives who brief the board.

Partner Notebook

Personal reflections from the partners, off the case file.

Archive

Everything published since 1987, indexed by year and topic.

Enter the Library
Independent Recognition

How outside institutions assess our work.

Full recognition record

Legal Directories

  • Legal 500 UKTier 1, 8 consecutive years
  • Chambers UKBand 1, International Arbitration
  • Who's Who LegalEleanor Whitfield, Arbitration

Awards & Rankings

  • GAR 30Ranked, 3 consecutive years
  • The Lawyer AwardsLitigation Team of the Year, shortlist
  • Chambers "Star Individual"Eleanor Whitfield

Media

  • Financial TimesCommentary on cross-border enforcement
  • Law360Trial coverage, Commercial Court
  • Bloomberg LawAnalysis, treaty arbitration
240+
contested matters resolved in the past decade
£6.8bn
in aggregate value under dispute across active mandates
1987
founded by Edmund Mercer QC and Charles Stone
Working Together

Not every dispute needs Mercer & Stone. Most of the ones we take do.

Read an honest account of who we're built for — and who we're not — before you get in touch.