John Cassels | Fieldfisher
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I co-head the firm's Regulatory Group.  I specialise in competition law and risk management, advising on all aspects of the UK and EU regimes including cartel investigations, antitrust litigation, restrictive agreements, dominance issues, alliances, and structural changes such as mergers and acquisitions.  I also work with clients on public procurement, state aid, international trade and regulatory investigations. My advice is practical and commercial, focusing on assessing and mitigating real risks.    

I have worked with clients across a broad range of industries from water and wastewater to soft drinks. I have particular expertise in regulated sectors, including food/beverage, transport, life sciences and financial/professional services.

I have a First Class Honours Degree in Law from the University of Glasgow (Scotland) and a Masters in Law and Economics (Distinction) from the University of Rotterdam (The Netherlands).


What others say…

John Cassels and the entire Fieldfisher team has been a valuable partner to us as we entered the European market. They are responsive and thorough, but most importantly they have really taken the time to understand our business, our goals, and our people, and the result is smart, practical advice even when we're moving fast. We think of them as an extension of our team and would happily recommend them

Peloton Interactive, Inc.

Very astute, approachable and adaptable

Legal 500

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