
Infrastructure
UK Guide 2026 : UK-wide
Rankings

Ranked Individuals
Ranked Individuals
Chambers Review
Provided by Chambers
Work Highlights
Provided by Chambers
Simpson Thacher advised EQT and GIC on their joint acquisition of a majority stake in Calisen, a UK-based owner and manager of smart meters.
Strengths
Provided by Chambers
One of the standout qualities of the team is their collaborative and solutions-oriented approach. They demonstrate a strong ability to integrate insights across disciplines and tailor their input.
Infrastructure respondentUKThe team have superior depth of knowledge and explain matters well.
Infrastructure respondentUKThe team at Simpson Thacher have strong, solid knowledge of the market and a great ability to manage lenders.
Infrastructure respondentUK
Notable Practitioners
Provided by Chambers
Band 1 
Band 1 
Amy Mahon
Amy Mahon is sought after by infrastructure funds and private equity firms for her expertise in infrastructure transactions. She has a particular focus on the transport industry. Amy Mahon is a superb lawyer who is very easy to deal with.
Infrastructure respondentUKAmy doesn’t just advise on deals - she shapes them.
Infrastructure respondentUKAmy Mahon has proven ability to deal with even the most complex deals across various geographies.
Infrastructure respondentUKAmy knows our business well and is excellent on all fronts.
Infrastructure respondentUKCombining deep legal expertise with exceptional commercial acumen, her ability to bring simplicity to complex transactions is remarkable. She leads with clarity, confidence and strategic insight.
Infrastructure respondentUK
Band 2 
Band 2 
Paul Hibbert
Paul Hibbert advises clients on various infrastructure transactions, including the financing and acquisition of energy and transport assets. He regularly represents private equity firms, asset managers and commercial lenders.
Paul is extremely helpful when dealing with lenders and, more importantly, taking a commercial and pragmatic approach.
Infrastructure respondentUKPaul Hibbert is the best lender legal counsel.
Infrastructure respondentUKPaul Hibbert is a real star and one of few true leaders in the infrastructure finance market.
Infrastructure respondentUK
Band 4 
Band 4 
Claire Williams
Claire Williams regularly advises infrastructure funds and financial sponsors on cross-border acquisition financing and debt refinancings.
Claire is very adept on the borrower side and very up to date on the most recent innovations in sponsor-led infrastructure deals.
Infrastructure respondentUK
Ranked Individuals at Simpson Thacher & Bartlett LLP (3)
What success is built on
Chambers is the leading data and intelligence partner for the legal sector.