A&O Shearman remains a key player in the global infrastructure market, advising on major transactions across digital infrastructure, energy transition, renewables, transport, and utilities. Regularly acting for infrastructure funds, institutional investors, developers, and corporates on multi-jurisdictional mandates, the team stands out for its cradle-to-grave capabilities, combining M&A, debt finance, and development expertise. The practice is led by David Lee, who serves as the key relationship partner to several of the firm’s most significant clients; Richard Evans, who maintains a broad practice encompassing acquisitions, investments, and debt finance; and Jocelyn Land, whose recent experience includes advising on multi-billion-pound solar refinancings, airport disposals, and major private equity transactions. Tim Conduit is noted for his expertise in capital markets-based financing structures and Ed Moser is active across core and core-plus assets, with recent involvement in fibre, data centre, and green steel transactions.  Jan Skuhravy is equally adept in both M&A and debt finance mandates.

Ashurst advises institutional investors, asset managers, and infrastructure funds on complex cross-border transactions spanning the full asset spectrum. The practice is particularly active across digital and energy transition infrastructure, including fibre rollouts, data centres, and renewables. With strong expertise in both M&A and finance, the team regularly acts on acquisitions, joint ventures, and portfolio refinancings across Europe, the Middle East, and Asia Pacific. Jason Radford leads the team and works closely with prominent industry players on a broad range of corporate transactions, demonstrating deep expertise across diverse asset classes. Co-head Michael Burns is a highly regarded M&A specialist and is particularly active in the energy transition space, where he regularly advises major energy transition funds. Gaby Jones is frequently engaged on European deals and is a go-to adviser for transactions involving underlying PFI contracts, while Dallan Pitman has a strong track record in the renewables sector. Laura Ho contributes substantial expertise in infrastructure finance.

Clifford Chance LLP remains a go-to adviser for institutional investors and lenders acting on complex, cross-border infrastructure transactions. With a deep bench of dedicated specialists, the team advises across the full investment lifecycle and breadth of core subsectors, including energy, digital, and transport. Charlotte Madden leads the practice and regularly advises top-tier sponsors and funds on a variety of brownfield transactions, with recent activity spanning large-scale data centre developments and circular economy projects. Co-head Michael Bates is a seasoned debt finance expert, demonstrating longstanding relationships with corporates, lenders, and sponsors. Nicholas Hughes focuses on high-value domestic and cross-border M&A and private equity transactions, while Alexandra Dimsdale-Gill is noted for her strength in debt finance matters. Also recommended are Matt Dunn, who maintains a strong portfolio of data centre work; Thomas Fisher, who frequently advises prominent financial sponsors on digital infrastructure and energy transition transactions; Jonathan Dillon, who is highly active in the renewables sector; and Julia House, a go-to adviser for cross-border M&A expertise across broad asset classes.

Renowned for its work with financial sponsors, Kirkland & Ellis International LLP advises on high-profile infrastructure transactions across global markets. The team is especially active on cross-border acquisitions, financings and exits involving core and emerging infrastructure assets, combining sectoral breadth with deep sponsor-side expertise to support long-term investment strategies across the full asset lifecycle. Team co-head Sara Pickersgill is a highly experienced M&A specialist who regularly advises leading private equity firms and infrastructure funds on substantial domestic and cross-border transactions. James Boswell, also co-leading the team, is a standout debt finance practitioner, with a strong track record across high-profile refinancings and acquisition financings. Fellow co-head Toby Parkinson frequently acts for major sponsors and fund managers on multi-billion-pound acquisitions, investments, and disposals, with notable strength in energy transition deals. Sinead O’Shea is sought after by clients for her extensive debt finance expertise, while Celyn Evans brings considerable experience in digital infrastructure transactions. James McGivern and Emma Shelston provide additional depth to the team, offering cross-border finance and M&A expertise respectively.

Latham & Watkins stands out for its integrated infrastructure offering, combining market-leading M&A and financing expertise with deep sector specialism. A trusted adviser to major financial sponsors, the firm regularly acts on complex transactions across emerging and established asset classes, and leverages its transatlantic platform to support investor strategies across the UK, Europe and the US. The team is led by Conrad Andersen, widely regarded as ‘the most knowledgeable and experienced infra finance lawyer in the market’, who advises a prominent client base across the full spectrum of infrastructure sectors. Seonaid Todisco continues to lead on high-profile transactions across the global markets, including multibillion-pound refinancings, major acquisition financings, and debt raises. Simon Tysoe is active on a range of acquisitions and investments in the energy and energy transition sectors. John Guccione rejoined the firm from Linklaters LLP in August 2024, strengthening its M&A offering. Steve Curtis is noted for his expertise in structured debt, while Misa Schmiederova and Amanda Fortuna advise on a broad range of banking and finance transactions. Rebecca Crowley left the firm in May 2025.

Linklaters LLP offers a fully integrated, cross-practice service covering the full asset lifecycle within core and emerging sectors. Known for advising on transformative UK and cross-border transactions, the team acts for leading sponsors, investors and corporates on M&A, financing, regulatory and development mandates. Team co-lead Richard Ginks is highlighted for the breadth of his practice, which spans both greenfield and brownfield mandates. Joint practice head Michael Honan is a key adviser to a number of financial sponsors and funds investing across a range of core and core-plus assets, while fellow co-head Elisabeth Johnson is a go-to for regulated and structured infrastructure financings. Subir Rajadhyaksha handles the full spectrum of infrastructure finance work alongside, Ross Schloeffel, who is elsewhere noted for his M&A expertise. David Martin focuses predominantly on digital infrastructure matters.

Simpson Thacher & Bartlett LLP advises a broad range of infrastructure investors, corporates, and sponsors on complex, high-value transactions across the UK and international markets. Particularly active in digital infrastructure, energy transition, transport, and regulated utilities, the team is noted for its experience through the full investment cycle from development and financing through to acquisitions, disposals, and restructurings. Amy Mahon leads the team and acts for a range of marquee infrastructure investors and asset managers on both domestic and cross-border M&A and joint ventures. Paul Hibbert and Claire Williams are recognised for their infrastructure finance expertise, handling the full spectrum of debt products and structures. Jiaying Zhang and Paul Foote demonstrate strong capabilities in domestic and international M&A and private equity transactions, while Emma Serginson is also noted for her work in debt finance.

Slaughter and May acts for institutional investors, infrastructure funds, and corporate platforms on high-value M&A and acquisition financings across the transport, energy, and digital sectors. The team is noted for advising on complex regulatory and structuring issues, including CMA approvals, and is increasingly active in energy transition projects such as hydrogen, CCUS, and nuclear, both in the UK and internationally. Michael Corbett spearheads the practice and focuses primarily on M&A and commercial agreements within the energy infrastructure sector. Co-head Hywel Davies is routinely instructed by funds, multinationals, and energy and services companies on public and private M&A, private equity transactions, and joint ventures. Robin Ogle, another go-to for private equity funds, brings additional expertise in capital raises, while Azadeh Nassiri's wide-ranging infrastructure finance practice includes large-scale energy transactions across Europe and Africa. Oly Moir remains a leading figure in the team and is valued for his deep asset knowledge and cross-border transactional expertise.

Gibson, Dunn & Crutcher advises leading infrastructure funds and corporates on complex cross-border transactions, including acquisitions, joint ventures, and investments. Building off its expertise across the energy transition, digital infrastructure, transport, and utilities sectors, the team is particularly active on global matters in the fibre and data centre space. Team head Federico Fruhbeck is a cross-border M&A and private equity specialist, with a diverse client base that includes leading funds. Robert Dixon is noted for his transactional expertise, particularly in the digital infrastructure space. Alice Brogi has recently led on deals involving data centres, ports, offshore transmission assets, and midstream infrastructure. Kavita Davis provides key debt finance expertise across a range of mandates.

‘A superb team with real strength in depth’, Herbert Smith Freehills Kramer LLP combines transactional, regulatory, and sector-specific expertise to advise on complex mandates across the full asset lifecycle. The team acts for global investors, operators, and developers on major acquisitions, financings, and restructurings, with notable experience across energy transition, transport, digital infrastructure, and utilities assets. Group head Gavin Williams is a key contact for sponsor-backed vehicles, pension funds, and sovereign wealth funds, frequently advising on cross-border investments and mergers. Sarah Pollock is chiefly noted for her work in the renewables and energy transition sectors, while Heather Culshaw draws on over 20 years of debt finance experience to advise lenders and borrowers on infrastructure financings. Silke Goldberg’s expertise in energy regulation and climate change underpins a number of key mandates.

Norton Rose Fulbright advises sponsors, lenders, funds, and governments across the full infrastructure asset lifecycle, with particular strength in cross-border M&A and financings. The team is recognised for its work regarding both core and emerging infrastructure assets, including energy, transport, and digital infrastructure, often acting on complex, first-of-its-kind transactions across Africa and other growth markets. Team head Stephen Rigby is a seasoned M&A practitioner with particular expertise in conventional and renewable energy transactions. Jason Moss is a key adviser to major energy investment managers, guiding clients through a range of battery storage and solar acquisitions. Nicolas Sirtoli oversees major company takeovers across the infrastructure sector, while Oliver Stacey is a go-to for digital infrastructure-related mandates, often working alongside Mark Maurice.

Weil, Gotshal & Manges LLP delivers strong M&A and finance advice to major institutional investors and infrastructure funds. The team regularly advises on complex, high-value transactions across sectors such as the energy transition, transport and digital infrastructure, and is particularly noted for its ability to handle regulated asset deals and cross-border mandates involving portfolio and single-asset acquisitions. A 'preeminent' global infrastructure M&A lawyer, team head Brendan Moylan is noted for his ‘encyclopedic knowledge of the market’ and remains a go-to adviser for many of the industry’s leading investors. Murray Cox adds further strength on domestic and cross-border M&A, while Simon Caridia – who joined from White & Case LLP in early 2025 – enhances the firm’s debt finance capabilities. David McKendrick is also recommended for his work on corporate transactions spanning a broad range of infrastructure verticals.

Baker McKenzie LLP advises corporates, infrastructure funds, pension funds and sovereign wealth funds on cross-border transactions across a range of transport, power, social, and digital infrastructure assets. The team is active on M&A, carve-outs, financings and joint ventures, with recent deals involving data centres, fibre networks and subsea cable infrastructure. Team head Nick Rainsford focuses on advising funds on M&A and private equity transactions, with recent highlights including multi-jurisdictional fibre acquisitions and major telecommunications infrastructure disposals. Charles Whitefoord is regularly instructed by major sponsors on high-profile mandates, particularly across the digital and technology sectors. James Heller leads deals in the transport and renewables spaces. Lesley-Anne Wilson also comes recommended.

Bryan Cave Leighton Paisner advises on domestic and cross-border infrastructure transactions across the asset lifecycle, with a balanced focus on both greenfield development and brownfield investments. The team regularly handles mid-market M&A, PPPs, secondary trades, and restructurings, and is increasingly active in the energy transition and digital infrastructure spaces. Team head Mark Richards is valued by clients for the breadth of his practice, which spans M&A, joint ventures, restructurings, and debt finance. Jinal Shah is a skilled cross-border M&A practitioner who is also frequently instructed on capital markets transactions. Kevin Atkins is highly active in the energy sector, advising on acquisitions, investments, and capital raisings. Matthew Daffurn provides additional expertise in brownfield financings, with Alexander Hadrill and Hansy Shore also recommended.

Paul, Weiss, Rifkind, Wharton & Garrison LLP has swiftly established a prominent infrastructure finance and M&A offering in London, advising sponsors and investors on complex cross-border transactions across energy, transport, digital and social infrastructure assets. Ex-Clifford Chance LLP trio Christopher Sullivan, Taner Hassan and Silvia Menendez joined the firm in the summer of 2024, with Sullivan and Hassan sitting among the team co-heads. Sullivan is highly regarded for his M&A capabilities, leading complex leveraged buyouts, takeovers and investments, while Hassan is particularly experienced handling a range of infrastructure financings, including acquisition financings, refinancings and sustainability-linked financings. Fellow practice co-leads Stefan Arnold-Soulby and Will Aitken-Davies are key names for sponsors and their portfolio companies active in infrastructure and its various subsectors. Tom Levine joined the practice from A&O Shearman in July 2025 and provides further digital infrastructure capabilities.

Pinsent Masons LLP advises across the full infrastructure asset lifecycle, acting for funds, sponsors and corporates on acquisitions, disposals and carve-outs. The team’s recent cross-sector mandates span renewables, oil and gas, energy-from-waste, and digital infrastructure, with the infrastructure practice regularly leveraging the firm’s expertise in funds, finance, and projects. Gareth Hughes leads the practice from London and is a key driver of its infrastructure M&A offering, acting for a number of the firm’s most significant sponsor and fund clients. John Tyerman and Rhian Critchell focus primarily on corporate transactions in the renewables and energy transition sectors, while Akshai Fofaria is noted for his specialist expertise in mining and mineral matters.

Sidley Austin LLP advises on the full spectrum of infrastructure transactions, with a focus on private equity-backed M&A and complex financing structures. The team supports fund clients across asset classes including transport, digital infrastructure, utilities and energy transition, offering integrated corporate and finance expertise on cross-border mandates. Team head James MacArthur is a leading M&A practitioner who advises marquee funds and industry players on transactions spanning a wide range of core and core-plus assets. Ed Freeman is lauded as an ‘outstanding corporate partner’ and has recently led on major port infrastructure acquisitions, significant telecom investments, and social infrastructure transactions. Ben Thompson handles bespoke and complex infrastructure financings for a broad spectrum of sponsors and lenders, having joined the firm from Travers Smith LLP in May 2024.

Travers Smith LLP advises on high-value infrastructure M&A, drawing on cross-practice expertise to support funds and corporates across a wide range of assets, from fibre and transport to energy transition and social infrastructure. The team regularly handles public and private transactions, joint ventures, and portfolio acquisitions in the UK and Europe. Team head Spencer Summerfield advises on high-value public and private M&A, IPOs, and infrastructure asset transactions, with a strong focus on the technology, energy, and utilities sectors. Jonathan Walters acts for infrastructure funds and institutional investors on strategic acquisitions, minority investments, and exits involving energy transition assets, regulated utilities, and essential services businesses. Mohammed Senouci provides additional M&A and equity capital markets capabilities, while Ryan Ayrton has strengthened the firm’s infrastructure financing offering since joining from Watson Farley & Williams LLP in September 2024. Hugh Hutchison also comes recommended.

Burges Salmon LLP’s infrastructure group delivers comprehensive transactional support across key sectors including transport, energy, digital, and health. Operating from London, Bristol, and Edinburgh, the firm is active on high-value M&A and financings involving operational assets such as fibre networks, EV infrastructure, rail, and clean energy platforms. Camilla Usher-Clark leads the team and advises clients across M&A and fundraising mandates, with particular skill in renewable deals. Jonathan Eves is routinely sought out by investors and developers on asset acquisitions and disposals, while Rupert Weston is strong in the transport sector. Stuart McMillan co-leads the team from Scotland and is highly regarded for his skill in infrastructure financing. Graham Soar and Alex Lloyd also come recommended.

Eversheds Sutherland (International) LLP’s infrastructure practice advises on complex M&A and financing across sectors including the energy transition, mobility, digital, and social infrastructure. The firm provides comprehensive support covering acquisitions, refinancings, regulatory matters, and commercial agreements for infrastructure investors and lenders. Leveraging longstanding experience regarding M&A, joint ventures and debt financings, Alex Carver leads the team alongside Jubilee Easo and Mukhtiar Tanda. Mark Dennison is singled out for the breadth of his asset knowledge and David Wyles is a key contact for a roster of prominent infrastructure funds. Peter Greenall also comes recommended.

Gowling WLG advises sponsors, lenders and government entities on complex projects, with particular experience in digital infrastructure, energy storage, and clean energy technologies. Dominic Richardson, Nath Curtis and Gareth Baker co-lead the team. Richardson is retained by a strong roster of funds for investments in a variety of core and core-plus assets in the UK and overseas, while Curtis and Baker handle infrastructure financing and M&A respectively. Will Glover is highly active in the energy transition and provides counsel to financial sponsors looking to invest in energy and infrastructure assets. Alexandra Poynter provides experience in sectors such as nuclear, water, defence and digital infrastructure.

Ropes & Gray LLP supports major infrastructure investors and asset managers across the full deal lifecycle, including acquisitions, fund launches, refinancings and hybrid debt structures. The team is active across digital infrastructure, energy transition, transport and social assets, with recent mandates involving fibre rollouts, data centre platform financings, and industrials and logistics sectors M&A. Team head Paul Armstrong is a private equity expert who advises financial sponsors on investments across numerous infrastructure verticals. Tom Alabaster handles fund management and financing alongside private equity transactions, while Will Bryant leverages his real estate background on social infrastructure and logistics deals.

Simmons & Simmons advises on complex infrastructure M&A and secondary market transactions, alongside project, acquisition, and bond financings. With a strong public-private partnership focus, it also supports major government infrastructure projects across the UK and internationally. Iain Duncan helms the practice and is notable for his cross-border advice. Andrew Petry provides astute infrastructure financing expertise and Juliet Reingold is a key point of contact to the firm’s sponsor, lender and public body clients. Waltter Kulvik advises a strong roster of infrastructure funds on acquisitions and disposals and Patrick Wallace is particularly active in the conventional power space.

Watson Farley & Williams LLP advises across the full infrastructure asset lifecycle, with expertise in M&A, project finance, and disputes. The firm handles complex, multi-layered debt structures and acts across transport, social, digital, and energy infrastructure, supported by a deep international bench of sector specialists. Group lead Andy Savage maintains an extensive practice spanning domestic and cross-border M&A, joint ventures, and private equity transactions across a range of infrastructure subsectors. Louise Mor is noted for her expertise in the transport sector and regularly advises on a wide array of infrastructure financings. Joe Levin acts for sponsors, multinationals, and lenders in the oil and gas space, while Chris Kilburn is active in the mining and minerals sector, currently engaged on major mandates across Africa.