Claire specialises in sectoral regulation with a particular emphasis on telecommunications.
Recent significant deals include advising:
- Aughinish Alumina on its successful EU General Court challenge to a Commission State aid decision
- ComReg (Irish communications regulator) on a number of regulatory enforcement matters
- Electricity Supply Board on the Irish merger control aspects of its acquisition of the transmission and distribution assets of Northern Ireland Electricity
2026 Legal 500 EMEA
"Claire Waterson is impressive in her knowledge of competition and regulatory law. Her calm temperament in high-pressure moments is unwavering."
2026 Chambers Europe
"Claire Waterson is very cool and collected at all times, which is an impressive and advantageous quality in high stakes legal services." "She has a deep knowledge and understanding of her area of specialisation. She is a pleasure to work with."
2025 Chambers Europe
"Claire Waterson is absolutely excellent." "Claire is responsive, collaborative, commercial and has broad expertise." "Claire Waterson is very technically talented."
2024 Legal 500 EMEA
"Cormac Little SC and Claire Waterson would be stand-out in any jurisdiction. They possess huge intellectual capital and client-facing capabilities." "This is a very good practice, led by the extremely capable Cormac Little SC and the resourceful and focused Claire Waterson amongst others. They have now become statespersons in the competition world."
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