JAMES MACARTHUR is a co-leader of Sidley’s global Energy practice and heads the Energy, Transportation and Infrastructure team in London. He has more than 20 years of experience acting for corporate and private equity sponsors on European and global deals across the spectrum of private equity, most notably for a number of leading infrastructure funds.
James’ experience covers a wide range of sectors, including energy, digital infrastructure, logistics, transportation, and social infrastructure.
James has received acknowledgement from numerous industry ranking guides, including:
- Chambers UK 2025 - Ranked for Infrastructure, where clients state “James is highly experienced, well networked and is a strong commercial lawyer.”
- Legal 500 UK 2025 - Ranked as a “Leading Individual” for Infrastructure: M&A and Acquisition Financing.
- Chambers UK 2024 - Ranked for Infrastructure, where sources note “James is a uniquely experienced lawyer across private equity infrastructure. He also adopts a commercial approach.”
- Legal 500 UK 2024 - Ranked for Infrastructure: M&A and Acquisition Financing.
- Chambers UK 2023 - Ranked for Infrastructure, where sources stated that “he provides exceptional client service and outstanding commercial awareness.”
- Legal 500 UK 2023 - Ranked as a “Leading Individual” for Infrastructure, where he is described as “an exceptionally good partner, looking to find the best solutions for his clients, demonstrating very good commercial judgement, and finding practical solutions. … He is the type of lawyer you want on your side in the most critical moments of a transaction.”
Prior to joining Sidley in 2023, James was head of the private equity infrastructure practice of another international law firm.