Mr Leonidas Theodosiou > Morgan, Lewis & Bockius UK LLP > London, England > Lawyer Profile

Morgan, Lewis & Bockius UK LLP
CONDOR HOUSE
5-10 ST PAUL'S CHURCHYARD
LONDON
EC4M 8AL
England
Leonidas Theodosiou photo

Work Department

Antitrust & Competition

Position

Leonidas Theodosiou advises on competition law and litigation. He is highly recommended by leading directories. Prior to joining Morgan Lewis, Leo spent several years practicing with a Magic Circle law firm, resident in Brussels. Leo is one of few lawyers globally who are fully qualified to practice law in the United Kingdom, European Union, and United States. For more information, view Leonidas’ biography at https://www.morganlewis.com/bios/leonidastheodosiouLeonidas

Career

England and Wales (Solicitor)

Brussels

New York

General Court and Court of Justice of the European Union

Greece: Courts of Appeal

Greece: Supreme Court

Languages

English

Memberships

Fellow (Elected), American Bar Foundation (2024–present)

Fulbright Fellow, US Department of State (2012–2013)

Education

Harvard Law School, 2013, LL.M., Fulbright Fellow, US Department of State

University of Cambridge, Trinity Hall, 2012, LL.M.

Aristotle University of Thessaloniki, Greece, 2011, LL.B.

Lawyer Rankings

London > Corporate and commercial > EU and competition

(Next Generation Partners)

Leonidas Theodosiou – Morgan, Lewis & Bockius UK LLP

The competition group at Morgan, Lewis & Bockius UK LLP is highly regarded for its ‘wide range of experience across jurisdictions’ on both contentious and non-contentious competition issues. The team has established a strong reputation in the pharmaceutical sector, frequently representing prominent corporations in numerous CMA investigations. Practice head Frances Murphy is trusted by clients to manage their complex, high-profile cases and is instrumental in the team’s involvement in significant matters. Leonidas Theodosiou, praised for his ‘thoughtful, pragmatic, client-centric approach‘, boasts capabilities in UK, EU, and US competition law.

London > Dispute resolution > Competition litigation

(Next Generation Partners)

Leonidas Theodosiou – Morgan, Lewis & Bockius UK LLP

Morgan, Lewis & Bockius UK LLP is highly regarded for its competition litigation prowess across the life sciences, retail, technology, and private equity sectors. The team is regularly entrusted to provide critical defences to antitrust investigations and dawn raids. Practice head Frances Murphy is responsible for major victories in pharmaceutical investigations and cases concerning abuse of dominance and pay for delay disputes. Complex abuse of dominance investigations and high-stakes merger disputes are both regular facets of Omar Shah‘s practice. Leonidas Theodosiou is qualified to practice US, UK, and EU antitrust law, bolstering the team’s cross-border capabilities. Joanna Christoforou  left the firm in May 2024.