The team at Fieldfisher is jointly led by Simon Sloane, who advises on oil and gas, mining, and infrastructure arbitrations, and Daniel Hayward, who has a particular focus on cases in Eurasia and Sub-Saharan Africa, with both bringing extensive experience in the space. Rebecca McKee is skilled at commercial arbitrations, having practised under a range of rulesets, such as LCIA, ICC, and SIAC, while Alexandra Underwood bolsters the team’s offering in telecoms and real estate matters. Ania Farren left the firm in June 2026.
Legal 500 Editorial commentary
Accolades
Client satisfaction: Billing & efficiency
Key clients
- The Republic of South Sudan
- Gilward Investments BV
- HM Government
- Littop Enterprises Limited & Others
Work highlights
Successfully defended the Republic of South Sudan in a high‑stakes ICC telecoms claim seated in Geneva, reducing exposure from US$4.4bn to US$48.4m (under 2% of the original claim) following a partial award and quantum hearing.
Appointed to the UK Government’s International Investment Disputes panel, advising across complex treaty‑based disputes.
Advised Gilward Investments BV in an ICSID claim against Ukraine arising from an aviation investment, including a favourable jurisdictional ruling prior to discontinuance.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Next Generation Partners
Junior partners with significant recognition from clients and peers in the market and key roles on multiple matters.
Practice head
Simon Sloane; Daniel Hayward
Other key lawyers
Rebecca McKee; Alexandra Underwood

