Cian Mansfield


Mr. Mansfield is published on competition law including:

  • Watch Your Language – Communicating with an Opt-Out Class, Thought Leaders 4 Competition (2023), with Doug Campbell
  • The Class System – Recent Developments in Mechanisms and Manageability for Group Litigation, Thought Leaders 4 Disputes (2022), with Alice Bernstein  
  • Come together now: recent developments in collective redress in England and Wales, Irish Journal of European Law 23(1) (2021)
  • Five Years of the CRA: A Lot Done, More to Do, Global Competition Litigation Review 3 (2020), with Belinda Hollway
  • Follow the Sectoral Leader: Follow-on Actions from UK Concurrent Regulators’ Decisions, Global Competition Litigation Review 4 (2019), with Belinda Hollway
  • Intel on Jurisdiction: An Intelligent Approach to Treating Anticompetitive Conduct Across Global Supply Chains, Global Competition Litigation Review 1 (2018), with David Howe and Patrick McGahan


Mr. Mansfield is Partner at Scott+Scott London. Mr. Mansfield specialises in acting for businesses and consumers who have suffered losses because of anticompetitive conduct and he also works on general commercial and securities litigation. Mr. Mansfield works closely with other members of the firm’s Antitrust and Competition and Securities’ practices, including evaluating and developing claims – often on a multi-jurisdictional basis.

Prior to joining Scott+Scott, Mr. Mansfield spent over six years in the London office of Freshfields Bruckhaus Deringer LLP. During his time at Freshfields, he worked on several leading competition damages claims (Cables, GIS, Power Transformers) and on several competition investigations in the financial services sector.

Following Mr. Mansfield’s LL.M he completed a five-month stage (internship) at the Legal Services of the European Commission in Brussels. Cian has published on competition law, private damages claims, and group actions.


  • Michael O’Higgins FX Class Representative Limited in a Consumer Rights Act collective action in the Competition Appeal Tribunal arising from the FX Cartels.
  • Several retailers (including Vodafone, Hermès, GrandVision, Michelin, Dunelm, Soho House, Grange Hotels) in their claims against Visa and Mastercard in relation to anti-competitive interchange fees.
  • Unilever, Danone, AkzoNobel, ArcelorMittal, Aperam, and Mondelez in claims in the Amsterdam District Court arising from the Trucks cartel.
  • A litigation investment company in claims arising from the Drawer Wraps and Drawer Fronts Cartels.
  • A solar power company in a commercial dispute in the English High Court involving breaches of contractual and fiduciary duties.