
Insurance: Non-contentious
UK Guide 2026 : UK-wide
Rankings

Ranked Individuals
Ranked Individuals
About
Provided by Sidley Austin LLP
For more information on the practice, please visit the practice's page at: https://www.sidley.com/en/services/insurance
Chambers Review
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Work Highlights
Provided by Chambers
Sidley Austin advised Arthur J. Gallagher with respect to its transaction to acquire AssuredPartners.
Strengths
Provided by Chambers
Sidley is able to navigate our commercial goals very well. Cross-border work is their sweet spot and they're extremely good at working internationally.
Insurance: Non-contentious respondentUKSidley Austin is reliable, responsive and a safe pair of hands when it comes to insurance transactions and regulatory analysis.
Insurance: Non-contentious respondentUKSidley Austin is commercially strategic in their outlook, which adds a lot of value for us.
Insurance: Non-contentious respondentUK
Notable Practitioners
Provided by Chambers
Band 2 
Band 2 
Martin Membery
Martin Membery regularly advises insurers and reinsurers on a range of non-contentious matters, including cross-border M&A and longevity transactions, as well as providing strategic and regulatory advice.
Martin Membery is able to tackle any complex question thrown at him with ease and he has a good commercial understanding of the needs of his client. He is prepared to go above and beyond for clients.
Insurance: Non-contentious respondentUK
Band 4 
Band 4 
James Phythian-Adams
James Phythian-Adams provides counsel to clients from the insurance industry on reinsurance transactions, M&A deals and regulatory matters. He has notable experience advising clients in the Lloyd's market as well as global insurers, reinsurers and private equity firms in the insurance sector. James is one of the most responsive law firm partners I've ever worked with – nothing is too much trouble.
Insurance: Non-contentious respondentUKJames is my favourite of all the lawyers I work with. He's very professional and knows the industry inside and out. I can't speak highly enough of him.
Insurance: Non-contentious respondentUKJames knows our company and the market very well, and is able to navigate our commercial goals very well. He provides impeccable client service and is super responsive. We couldn't ask for more.
Insurance: Non-contentious respondentUKJames has strong knowledge of the insurance market and has a good understanding of the commercial issues that may be faced by insurers.
Insurance: Non-contentious respondentUK
Ranked Individuals at Sidley Austin LLP (2)
Members
Provided by Sidley Austin LLP

Martin Membery
View profile of Martin Membery
James Phythian-Adams
View profile of James Phythian-Adams
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