David Parratt KC (Scot) is a busy barrister, advocate and arbitrator. David has extensive court experience and regularly negotiates settlements in multi-million pounds claims. He is often involved in complex international commercial disputes.

David’s practice covers his key experience and interests in arbitration, construction & engineering claims, energy disputes (including oil/gas upstream claims), general commercial litigation and commercial contracts.

He is a practising barrister in England & Wales and was called in 2009 (Lincoln’s Inn). He is an non-practising member of the Faculty of Advocates (Scottish Bar), having practiced from 1999 to 2020 - taking Silk in Scotland in 2017. He is also a non-practising member of the Northern Irish Bar, calling in 2016.

Patrick Heneghan joined 3PB in April 2022, having previously been a dispute resolution partner in the London office of Skadden Arps, one of the world’s leading US international law firms, specialising in international arbitration, commercial litigation and other dispute resolution procedures.

Patrick has extensive experience acting as counsel in complex private commercial arbitration disputes as well as in investment treaty proceedings. Patrick has represented clients in a wide variety of different seats (including London, Hong Kong, Paris, Geneva, Stockholm and Johannesburg) and under all the major institutional and other rules (including ICC, LCIA, AAA/ICDR, SCC, HKIAC, UNCITRAL and ICSID). These disputes cover a broad range of commercial matters including shareholder agreements, minority shareholder rights, breaches of director’s duties, insurance, aviation, shipping, oil and gas, electricity generation and transmission, telecommunications, mining, finance and pharmaceuticals. Patrick also has considerable experience of engineering and construction disputes, particularly in the energy field.

Srishti is a Managing Associate at Keidan Harrison LLP, having joined the firm in January 2021. Prior to joining Keidan Harrison LLP, Srishti was an associate in the London office of LALIVE, the Swiss-based dispute resolution international law firm. Srishti has also worked in the international arbitration teams in the London offices of US firm Debevoise & Plimpton and international arbitration specialists Three Crowns. Before moving to London in 2017, Srishti was a disputes associate in the Delhi office of Trilegal, one of India’s top law firms and the New York office of Stokes Wagner, a US boutique litigation firm.

Shai is an international arbitration lawyer with a particularly strong expertise in cases arising from the upstream oil and gas and energy sectors as well as in joint-venture, shareholder and partnership disputes and cases involving IT, telecoms, construction, infrastructure, mining and international sale of goods disputes.

He is the co-author of a leading textbook on LCIA arbitration and serves as counsel and arbitrator under rules of the major arbitration institutions, including the ICC, LCIA, UNCITRAL, ICSID and others. 

Shai has represented clients from every continent around the world in disputes concerning a variety of national laws. He is an expert in international investment law regularly advising clients on their rights under international treaties.