Philippa has advised clients on five continents in relation to arbitration proceedings. She has led teams in court applications and enforcement proceedings, and in mediation and other ADR formats. Her experience includes cases seated in England, France, Sweden, the United States, the UAE, and Nigeria, as well as the application of foreign laws including those of Venezuela, Brazil, China, New York and Russia.



Philippa’s experience includes:

  • Advising the claimant in a complex, high-value ICC arbitration proceeding seated in Dubai concerning allocation and valuation of businesses and assets in multiple jurisdictions
  • Representing the respondents (Chinese automotive manufacturers) in the defence of claims arising out of a failed joint venture valued in excess of $700m including issues of jurisdiction and governing law under LCIA Rules
  • Acting for the company in a shareholders’ dispute concerning issues of unfair prejudice, under LCIA Arbitration Rules, and advising in connected court proceedings in BVI and Cyprus
  • Acting for a State in English Court proceedings resisting recognition and enforcement of an award rendered under an intra-EU BIT.


Ranked in Who’s Who Legal: Arbitration. They commented “Philippa draws praise as a real force of nature for her vast knowledge of international arbitration and her bright and engaging advocacy skills.”

In Chambers UK Philippa is named by sources as “a true arbitration specialist.”She acts for a range of clients including engineering companies, high-profile private clients and energy companies in commercial arbitrations. Sources say: “She is very agreeable, personable and pleasant to deal with but is also a very good lawyer. She is hard working and she forms her own, very intelligent view on issues.”

Legal 500 commented Philippa is “a wonderful blend of legal intelligence and commercial savvy.”

Ranked in Expert Guides in Women in Business Law: Commercial Arbitration – one of only nine women in London so ranked.

Accreditations and Memberships

Fellow of the Chartered Institute of Arbitrators. Member of the ICC and the LCIA. Member, UK Committee on Arbitration, ICC (2015-date). Member, Task Force on the Probative Value of Witness Evidence, ICC Commission on Arbitration and ADR (2016-date). CEDR-accredited mediator. Solicitor-Advocate of the Higher Courts of England and Wales (2002).


Philippa trained and qualified into the commercial dispute resolution group of Rowe & Maw (now Mayer Brown International LLP) in 1999 and became a partner there in 2007. She joined Stewarts in February 2013.

Philippa has written her career story and experience of Stewarts for our careers section, you can view her story here.


Philippa was born and raised in Dublin, and educated in Dublin and at Oxford. She enjoys music, baking, needlework, and travel.