Eversheds Sutherland
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Eversheds Sutherland’s US-led international arbitration practice showcases exceptional strength in state representation, spanning investor–state arbitration, ICJ proceedings and complex public international law disputes, with a proven reputation as go-to counsel for enforcing arbitral awards and foreign judgments against sovereigns and state-owned entities. In Washington DC co-head William O’Brien is noted for capabilities in high-stakes international arbitration, with a deep background in award enforcement, annulment and New York Convention litigation. Frequently acting as first-chair counsel in high-value cross-border matters, Washington DC-based co-head John Lomas draws on deep experience before major arbitral institutions, US and international courts. In New York, Levon Golendukhin has strong sector expertise across mining, energy, infrastructure and transportation.
Legal 500 Editorial commentary
Testimonials
Collated independently by Legal 500 research team.
- 'The team combines international expertise, extensive experience across all major institutional arbitration frameworks (including ICC, UNCITRAL, LCIA and SIAC), strong academic depth and excellent people skills.'
'Will O’Brien is a very hard-working practitioner and academic, with real range and subject-matter depth; he is proactive and inclusive of local legal teams, has a strong eye for detail, and is also an excellent narrative builder, combining pragmatism with innovative legal thinking.'
Key clients
- Honwood Services Limited
- R.W. Chelsea Energie Ltd. (formerly Symbion Energy Holdings, Ltd.)
Work highlights
Represented Honwood Services in an approximately €1.4 billion dispute arising out of Poland’s Ministry of Environment’s treatment of Honwood’s potash mining project, a case involving the important issue about the viability of intra-EU bilateral investment treaties.


