Acting for, and against, sovereign states and state-owned entities, Jenner & Block LLP‘s ’very strong team of lawyers’ handles the gamut of cross-border claims and investment treaty disputes. Following the departure of former practice chair Charlie Lightfoot in October 2023, James Rogers, who is experienced in corporate, commercial, technology, M&A, licensing, and joint venture disputes, leads the practice. Jason Yardley represents hedge funds, privately-owned groups, family offices, sovereign states, and energy and telecoms companies, and Christian Tuddenham is ‘a star practitioner’.
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- Profile
Testimonials
Collated independently by Legal 500 research team.
‘A very strong team of lawyers, from junior associates through to partners, with a real focus on achieving their clients’ core commercial objectives. The individuals at Jenner reflect a deeply embedded culture of excellence and stand out for their hands-on approach. James Rogers stood out for his clarity of thinking and deep expertise.'
‘The Jenner & Block team is completely on top of exceptionally large and complex briefs, providing first-class advice and potential solutions in fast-changing environments.’
‘From the perspective of junior Counsel, working with Jenner & Block is painless - their work product is excellent, the associates reliable, and their partners and counsels fully versed in matters.’
‘Christian Tuddenham and Ronan O'Reilly are both excellent.’
‘Christian Tuddenham is a star practitioner. A delight to work with, clear and well organised, with a very good handle on the legal and strategic points.
‘Christian Tuddenham - excellent manner with lay and professional clients, and it is clear they trust him implicitly.
‘Ronan O'Reilly is a particularly astute lawyer. His drafting and analysis are first rate, and he is willing to get to grips with complex material and make the difficult judgement calls when required.’
- ‘Ronan O'Reilly’s work is top class. Easy to work with, very clever, and one to watch. James Rogers is hands-on, and business astute.'
Key clients
- Kellanova
- Lille + Hus
- OMV Petrom
- OMV Group
Work highlights
- Representing a subsidiary of US cereal and snack maker Kellanova (formerly Kellogg) in an investor-state dispute (ICSID Additional Facility) with the Government of Venezuela.
Lawyers
Leading partners
The strongest partners in their field, leading on market-leading deals and endorsed by peers and clients alike.
Practice head
James Rogers
Other key lawyers
Jason Yardley; Christian Tuddenham; Ken Beale; Lizzie Shimmin; Ronan O’Reilly; Michaela Croft