‘Highly professional and efficient’, the international arbitration team at CMS is led by Philip Norman, who focuses on complex work in the energy and infrastructure sectors and regularly advises on major institutional rules and ad hoc arbitrations. guy pendell  is known for his skills in commercial arbitration, particularly in tech and finance disputes, while Emma Schaafsma, praised by clients for her ’excellent understanding’, brings further knowledge of energy, including LNG and renewables. Sunil Mawkin joined the team in September 2025 and has experience acting on major ICC arbitrations, and George Burn joined in June 2026, bringing extensive experience in both commercial and investor-state work.
Legal 500 Editorial commentary

Testimonials

Collated independently by Legal 500 research team.

  • Adrian Bell, a true leader in his field, is reflected by the fact that he is now a senior partner at CMS. Philip Norman is an incredibly talented and experienced arbitration lawyer. There is nothing he has not seen or done. Jay Randhawa is a relatively junior partner but performs like a partner with much more experience. He is particularly adept at dealing with Middle Eastern disputes.
  • The international arbitration team of CMS is simply one of the best. I think what clients would want to know is that they have direct experience of disputes in most areas of the world, which means that they are able to work in any arbitration forum.
  • Emma Schaafsma (Partner) and Julie Czaplinska-Pakowska (Associate) bring sharp, detailed, oriented, technically minded, responsive, and compassionate legal skills to complex construction dispute resolution.
  • Attention to detail, responsiveness, ability, and competency with highly technical cases.
  • We are currently involved in a complex international construction arbitration involving parties from three different jurisdictions, with legal counsel representing interests from more than four jurisdictions. Throughout the proceedings, CMS has coordinated the multinational counsel team and the client in a highly professional and efficient manner. Their approach has been effective in terms of timing, cost management, strategic planning, and tactical execution. CMS has demonstrated a strong ability to navigate the complexities of cross-border disputes while maintaining clear communication and alignment among all stakeholders.
  • We have been working closely with Emma Schaafsma, a partner on this matter. Emma has demonstrated an excellent understanding of both the factual and legal aspects of the case and has been instrumental in its management. She handles client communications with professionalism, provides practical and strategic guidance, and works collaboratively with our team in the proceedings. Given the multi-jurisdictional nature of this arbitration, involving parties, counsel, and legal systems from several countries, Emma has been particularly effective in coordinating and working seamlessly with lawyers from different jurisdictions and legal traditions. She is open-minded, receptive to input from local counsel, and genuinely willing to listen to and consider our advice and then incorporate those inputs into the submissions accurately.

Lawyers

Hall of Fame

The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

George Burn
George Burn
Next Generation Partners

Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.

Sunil Mawkin
Sunil Mawkin
Practice head

Philip Norman

Other key lawyers

Guy Pendell; Emma Schaafsma; Sunil Mawkin; George Burn; Sarah Grenfell