Mark Jones has over 25 years of experience advising on complex and high-profile competition/antitrust issues. He has obtained competition clearances for M&A transactions and joint ventures and has represented clients in cartel, monopoly, and market investigations. Mark advises on UK, EU, and multijurisdictional matters. Sectors in which he has particular experience include financial institutions, technology, pharma, energy and infrastructure, entertainment and media, and retail and consumer. Mark has been described in legal directories as an "excellent technician and tactician" and a "fantastic competition lawyer."
Mark also regularly advises on foreign direct investment regimes, the economic regulation of utilities, and subsidy control rules. Mark's experience includes a secondment to the Office of Fair Trading, the predecessor to the Competition and Markets Authority (CMA).
Mark's recent cases include: acting for Greystar Real Estate Partners to obtain CMA merger clearance of its £3.3bn acquisition with GIC of Student Roost in the student accommodation sector, successfully negotiating undertakings in lieu of a reference for in-depth CMA investigation; representing Ubisoft in its acquisition as remedies purchaser of Activision's cloud gaming rights to enable CMA clearance of Microsoft's $68.7bn acquisition of Activision Blizzard; acting for Wabtec Corporation to obtain CMA merger clearance for its $960m acquisition of Dellner Couplers; and defending a major European vehicle manufacturer in relation to parallel European Commission and CMA cartel investigations into end-of-life vehicle recycling.
Experience
Additional Speaking Engagements
- January 29, 2026
GCR Live: Global: Navigating the future of antitrust 2026 - Antitrust Reset: US enforcement shifts and global impact, Panel Speaker
- St Catherine's College Oxford (M.A. Oxon 1999; B.A. Hons. in Modern History 1991); College of Law, Guildford (Law Society Finals 1993; Common Professional Examination 1992)
- Solicitor of the Senior Courts of England and Wales and solicitor of the Republic of Ireland
"Mark is very responsive; he's an incredible lawyer." (Chambers 2027)
"Brings extensive experience across cartel, market investigation and abuse of dominance matters." (Legal 500 2027)
"Is incredibly knowledgeable and responsive, advising in a concise and commercial way." (Chambers 2026)
Lexology Index, "highly recommended" (2026)