James Groves | Fieldfisher
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Professional background

Professional background

I have experience in acting for clients on a range of competition law matters, including CMA and Ofcom investigations, anti-trust compliance, vertical agreements, merger control and subsidy control. On contentious competition and regulatory matters I have represented clients in litigation before the CAT, High Court, Court of Appeal and Supreme Court.

Prior to a career in law, I spent six years working in public sector consulting and public policy.

Authored pieces

All Resources
Two people, one in a dark suit and the other in a light suit, are seated at a table. One person is holding a pen and pointing to a document on the table, while the other person is pointing at the same document. The scene suggests a discussion or review of the document.
Competition
Insight

Power Cables - London Array 'Short Circuits' Spottiswoode

03.12.2025
On 30 October 2025, the Competition Appeal Tribunal (CAT) handed down its judgment following a joint hearing in Clare Mary Joan Spottiswoode CBE v Nexans France S.A.S. & Others and London Array Ltd & Others v Nexans France S.A.S. & Others (respectively, “Spottiswoode” and “London Array”).
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A person holding up a smartphone to capture a concert or event. The background is blurred with vibrant pink, purple, and white lights, giving a festive and energetic atmosphere. The image focuses on the phone screen where a part of the stage is visible.
Competition
Insight

"Lunch and Learn": Concerted practices in competition law clarified in Phones 4U case

23.09.2025
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A person is driving a car, visible from behind the passenger seat. The driver wears a watch on their left wrist. The dashboard displays various controls and a digital screen. Outside the car, the sky is colorful with pinks and purples, indicating dawn or dusk.
Public & Regulatory
Insight

Applying the brakes: interim injunctions in competition law claims

26.08.2025
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A digital illustration featuring abstract lines and glowing dots, reminiscent of light trails or neural networks. The colors transition from pink to purple and blue, creating a dynamic and futuristic aesthetic against a dark background.
Public & Regulatory
Insight

When can public contracts lawfully be modified under the Procurement Act 2023?

07.02.2025
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Public & Regulatory
Insight

Renewal of the Windsor Framework: what next for post-Brexit trade?

11.12.2024
The Northern Irish Assembly has voted in favour of renewing Articles 5-10 of the Windsor Framework concerning the application of EU law to the trade in goods in Northern Ireland ("NI") for another four years.
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