Ciara Kalmus

"Ciara does well where other economists fail, which is translating complex economic theory into language which is clear and concise and can help lawyers understand the issues to present the best case for their clients." (2025)

Ciara Kalmus is a Senior Vice President and Co-head of the London office.

Ciara is a highly experienced economist with over 20 years of expertise in the economics of competition law and regulation.

Ciara has advised companies in many industries, with a particular expertise in media and telecommunications. She has given expert evidence before the Competition Appeals Tribunal and in arbitration proceedings. She has advised on a range of anti-competitive conduct cases including in relation to alleged margin squeezes, anti-competitive price discrimination, refusals to supply, cartels and state aid investigations.

Between 2014 and 2021, she held the position of Economic Director at Ofcom, where she acquired extensive knowledge in economic regulation, including overseeing market reviews and investigations under the Competition Act. Between 2020 and 2021, Ciara focused on broadcasting, including the Public Service Broadcasting Review and the regulation of the BBC.

Prior to joining Ofcom, Ciara spent 15 years in consultancy, working with the Compass Lexecon team on a range of competition projects. She has advised clients on cases before the UK Competition and Markets Authority (and its predecessors), the European Commission, and national competition authorities. She has given oral evidence at hearings of the UK Competition Commission, the European Commission and the Competition Appeals Tribunal.

Ciara holds degrees in economics from the London School of Economics (MSc Economics) and Oxford University (M.A. Philosophy, Politics and Economics).

"Ciara has a unique approach to presenting complex matters in a concise manner that goes at the heart of the issue. This is appreciated by regulators and clients alike." (2025)

"She was extremely knowledgeable in her field. She was able to deploy her knowledge to effectively respond to the other side, and she was a pleasure to deal with." (2025)

"We were impressed by their analytical skills, the clarity in which they communicate their findings, their deep knowledge of the media/broadcasting sector (and regulation thereof)." (2025)

"She is a very strong professional. She is very dedicated and extremely dependable for timely excellent work." (2025)

"She is extraordinarily detail-oriented and a true subject matter expert. She is able to explain hugely complex and expert topics with great clarity and accessibility." (2025)

"Ciara is very clever, has great attention to detail and does not get fazed easily." (2025)

"Very bright, good communicator, spots issues and solves them - and very proactive." (2024)

"We really enjoyed working with her and she made us look good to the client." (2024)

"She works hard, she (and her team) produced high quality output and her advice was always very clear and practical." (2024)

"Ciara's background from the Ofcom economist team means she has a great understanding of the economics of the telecoms industry and can deploy that knowledge to think critically through issues we're facing." (2025)