LAWYER PROFILE

William Turtle

UK 2026

Slaughter and May

Ranked in 1 practice area

Competition Law

London (Firms)

5 years ranked

About

Provided by Slaughter and May

Practice Areas

Competition

Litigation

Global Investigations

Career

William is based in London, but spends a significant amount of his time in Brussels.

William has extensive experience in a wide range of competition and regulatory matters. He has been involved in a number of major cartel and other behavioural cases, including global antitrust investigations. He has also acted on a number of high-profile merger cases (including at Phase II) before the EU and UK competition authorities. In addition, he has significant experience in the field of competition litigation, including in appeals before the EU and UK courts. He is a member of the Brussels Bar (A list), as well as being qualified as a solicitor (England and Wales).

Chambers Review

Provided by Chambers

Chambers Guide to the Legal Profession

Competition Law - London (Firms)

Band 4

Individual Editorial

William Turtle moves up in the rankings on the back of his focus on assisting clients with high-profile merger control filings, with further experience advising on NS+I clearances and CMA antitrust investigations.

Learn more about this team View ranking table

Strengths

Provided by Chambers

William Turtle was fantastic. He is very commercial and has a huge depth of knowledge.
Competition LawChambers Guide to the Legal Profession
William Turtle is an incredibly talented lawyer and offers an excellent level of service.
Competition LawChambers Guide to the Legal Profession
He is a fine communicator. He understands reading between the lines well, gets into issues quickly and he is very sharp. He can add value which was very impressive.
Competition LawChambers Guide to the Legal Profession
William Turtle is a strong lawyer, who navigates complicated issues and is easy to deal with.
Competition LawChambers Guide to the Legal Profession