Ashurst is a market leader in complex project development and finance mandates, advising on major cross-border energy and infrastructure projects. The team is frequently instructed on first-of-their-kind matters by UK Government departments, including CCUS and DPC mandates; has a strong track record in international hydropower, transport and battery production schemes; and stands out on innovative PPP and regulatory delivery models. Terry van Poortvliet leads the team and is well regarded for his expertise in the transport sector. Philip Vernon acts as a key adviser to government bodies on nationally significant infrastructure programmes, while Logan Mair is particularly active in the defence and PFI/PPP arenas. Patrick Boyle and Cameron Smith have recently been instructed on large-scale circular economy and carbon capture projects. Sonny Udovicic plays a central role in the firm’s infrastructure financing work, while Quentin Robinson is sought-after by multinational sponsors on high-profile energy transition ventures, including green hydrogen and carbon capture developments. Anthony Johnson advises the UK Government on energy security programmes.

Clifford Chance LLP is a leader in large-scale, cross-border infrastructure financings, offering full-service capabilities from procurement to delivery. Alongside its deep experience advising on ESG matters, the team supports sponsors and lenders on greenfield and brownfield projects, with standout expertise across construction, environment, and sustainable finance. Clare Burgess and Michael Pearson co-lead the team: Burgess is recognised for her financing and ESG expertise across the renewables and energy transition sectors; Pearson is noted for his role on nationally significant projects, including major utilities and transport developments in the UK, as well as large-scale social infrastructure across Europe and the Middle East. Praveen Jagadish is praised for his wide-ranging practice spanning commercial, regulatory, and financing matters, while Edward Bretherton provides key construction expertise. Bryony Theaker has a growing portfolio of work in the greenfield digital infrastructure space. Caireen McCluskey continues to widely support.

Herbert Smith Freehills Kramer LLP maintains a prominent position on the UK’s most significant energy transition and infrastructure developments, as well as key PPP mandates. The team acts for a mix of sponsors, government bodies, and lenders across carbon capture, battery storage, hydrogen and renewables assets, and continues to lead on complex cross-border projects across Europe and emerging markets. Practice lead Martin Kavanagh is highly experienced in advising on major renewables and energy transition developments across jurisdictions such as Africa, Asia, and the Middle East. Matthew Job is a project finance specialist who regularly acts on high-profile matters in the UK power sector. Helen Beatty provides further financing expertise to a broad client base of sponsors, funds, and developers. Silke Goldberg, widely recognised for her regulatory and climate change acumen, is particularly active on renewables and digital infrastructure matters. Tom Marshall brings development and commercial expertise to bear on a number of nationally significant projects, particularly in regulated sectors, and Dhananjaya Chak is well-positioned to advise on complex cross-border financings.

Latham & Watkins continues to act on high-profile energy and infrastructure developments globally, including multi-sourced financings in Africa, Asia-Pacific, and the Middle East. The team is a go-to adviser for sponsor and lender-side mandates, often leading complex capital stack structuring on projects spanning LNG, carbon capture, and transport infrastructure. In addition to its work on traditional energy assets, the team is at the forefront of the energy transition, advising on financing arrangements for hydrogen, battery storage, and low-carbon power generation technologies. Team head Tom Bartlett brings extensive experience advising lenders and sponsors on marquee projects across the Middle East, APAC, and Africa. Clement Fondufe is particularly recognised for his strong work in the oil and gas sector, while David Ziyambi manages a broad range of financing arrangements for a client roster that includes multinational energy and natural resources companies and oil and gas majors. JP Sweny and Alexander Buckeridge-Hocking are both highly active on energy transition mandates, with Sweny playing a key role in driving the firm’s CCUS and hydrogen offering. Evelyne Girio is noted for her project development expertise.

Linklaters LLP provides comprehensive legal support across core sectors such as transport, energy, and digital infrastructure. The London team has strong expertise in both greenfield and brownfield projects and is well regarded for handling complex PPP and regulated asset base transactions. Leveraging its global network, the firm adeptly manages intricate cross-border projects and advises on emerging areas including data centres, CCUS, and gigafactories. Team head Richard Ginks advises lenders and sponsors on both greenfield and brownfield transactions, with a strong focus on energy and energy transition financing. Subir Rajadhyaksha offers a broad finance practice, particularly regarding digital infrastructure projects, while Elisabeth Johnson contributes financing, commercial, and regulatory expertise to several significant UK developments. Maryam Adamji is a further key contact.

Praised as a ‘fantastic team that always provides pragmatic advice', Norton Rose Fulbright advises on major infrastructure, energy, and natural resources mandates across the full project lifecycle. With particular strength in complex cross-border developments, the team is regularly instructed on first-of-kind and strategically significant projects, combining transactional expertise with specialist knowledge in emerging and established asset classes. Team head Robert Marsh is a seasoned project finance specialist with a strong record in offshore wind, while co-heads Martin McCann and Charles Whitney lead on major mandates across Africa, Central Asia, Latin America, and the Middle East. Madhavi Gosavi advises lenders, multilaterals, and sponsors on complex arrangements, particularly multisource and ECA-backed financings in emerging markets. Chris Down and Daniel Metcalfe are key contacts for energy transition and digital infrastructure work, respectively, and Paul Mansouri remains active on high-profile projects in the Middle East.

Pinsent Masons LLP fields a comprehensive infrastructure practice, with deep expertise spanning energy, transport, social infrastructure, and digital assets. The team combines strong capabilities in project finance, construction, regulatory, and PPP matters, and is particularly active in net zero-aligned developments. It is regularly instructed on complex, high-value projects involving energy storage, carbon capture, and nuclear decommissioning. Graham Alty leads the team, with Jonathan Hart well-placed to advise on all aspects of construction and project development. Sonal Shah is noted for her broad asset experience, including social infrastructure, transport upgrades, and utilities. Anne-Marie Friel focuses on non-contentious construction and regularly acts for public sector clients and contractors on nationally significant schemes. Helen Gray, Sam Robert, and Gina Fogarty also come recommended.

Addleshaw Goddard maintains a strong infrastructure and PFI/PPP practice, acting for government bodies, sponsors, investors, and lenders on complex and long-term projects. With a deep national bench and growing international reach, the team offers integrated expertise across project finance, regulatory, and construction matters. Richard Goodfellow heads the team, with Michael O’Connor offering seasoned advice to public sector clients. Matthew Newing draws on his PFI/PPP expertise to advise on major social infrastructure projects, while Oliver Carruthers acts for sponsors and funders across digital, social, and energy transition infrastructure mandates. David Hartley is prominent in the secondary PFI/PPP market. Phil Dupres leads the firm’s national utilities offering.

Characterised by its ‘high level of services and responsiveness’, Baker McKenzie advises sponsors, lenders, and governments on complex, cross-border projects spanning the energy, infrastructure and natural resources sectors. The team is particularly active on energy transition and first-of-a-kind mandates, with expertise across development, finance, and procurement. Leveraging its global platform, the firm is also well positioned to handle multi-jurisdictional project disputes and concession-based structures, including PPPs and BOTs. Team head Richard Blunt is well-equipped to advise on both greenfield and brownfield matters. Mike Webster brings deep expertise in mining and energy projects across Asia Pacific, Africa and Europe, while Philip Thomson is a go-to for the commercial and financing aspects of conventional and renewable energy assets. Rhiannon Williams advises on mining project development and commercial matters, and Luka Lightfoot is recognised for his infrastructure finance capabilities.

Bryan Cave Leighton Paisner’s infrastructure practice is recognised for advising on complex, first-of-a-kind PPP and project finance deals across the UK, Europe and emerging markets. With strength across both greenfield development and secondary market transactions, the team regularly acts for sponsors, lenders and public authorities on transport, healthcare and social infrastructure mandates. Mark Richards leads the practice and has deep experience advising clients on the development and commercial aspects of nationally significant schemes. Kimberly Roberts has a strong track record of advising on major industrial and engineering projects, while James Good provides astute environmental and planning expertise. Alexander Hadrill is active across the full project lifecycle, with particular skill in infrastructure financing, and Jonathan Cooper has extensive experience with renewables and energy transition assets. Hansy Shore is noted for her project development expertise.

CMS fields a cross-sector infrastructure team that advises on complex energy, transport, social infrastructure, healthcare, and digital infrastructure mandates across the UK, Europe, Middle East, and Africa. Clients include global sponsors, contractors, and lenders, with recent mandates spanning CCUS, fibre rollouts, data centres, and PPP portfolio transfers, refinancings, and handbacks. Paul Smith and James Snape co-head the practice, bringing deep expertise in project finance and procurement. Jonathan Dames covers a wide array of energy and infrastructure assets and is noted for his project finance proficiency. Philip Duffield’s practice largely focuses on the clean energy sector, where he acts for developers, investors, and lenders. Katie Duffield is a further key contact.

Highly sought-after on landmark infrastructure and energy transition projects, Slaughter and May acts on complex cross-border developments and funding structures. Well-versed with emerging technologies, the team's recent work spans hydrogen production, nuclear, carbon capture, and integrated energy networks, demonstrating deep capability in complex financing, development and regulatory issues across Europe, Africa and other global markets. Michael Corbett and Hywel Davies co-lead the practice, with the duo noted for their energy-focused corporate and commercial work. Azadeh Nassiri has an excellent track record in wind and hydrogen mandates and Richard Todd provides ‘outstanding advice' on the suite of arrangements underpinning major infrastructure project construction. Oly Moir is widely praised by clients for his work in the energy transition and Samay Shah is a key contact for finance expertise. Adrian Barrus provides broad support across the full spectrum of team mandates.

Watson Farley & Williams LLP advises on a wide range of project financings across Europe, Africa, Asia and the Middle East, acting for lenders, ECAs, DFIs, governments, and sponsors. Particularly active in the energy sector, the team combines finance expertise with deep sector knowledge, and is well versed in structuring complex multi-tranche transactions. Henry Stewart leads the team and is highly active on complex financings in the renewables and energy transition spaces. Katherine Best advises a wide roster of European and global sponsors and lenders on brownfield and greenfield financings, while Jennifer Charles is active on substantial project financings for renewable projects in the Nordics. Joe Levin is well-placed to advise clients operating in the midstream and upstream spaces. Paul Simpson and Ben Charles also come recommended.

Praised for its ‘in-depth knowledge of the relevant laws and sophisticated transaction structures’, Bracewell (UK) LLP advises on greenfield financings and development matters across the energy and infrastructure sectors, with experience spanning ports, transmission lines, social infrastructure, and hydrocarbons. Jason Fox leads the team. Co-head Oliver Irwin is a project finance and cross-border specialist who advises a sophisticated roster of export credit agencies, multilateral banks, and development finance institutions. Ben James, Darren Spalding, and Adam Blythe have a strong focus on the oil and gas sector, while Tom Jamieson is recognised for his ability to handle the financing aspects of complex power and energy transition projects. Ronen Lazarovitch is active in multiple global markets, including Central Asia, the Middle East, and Africa. Gordon Stewart’s practice covers M&A, finance, and development issues.

Burges Salmon LLP acts on high-value, first-of-a-kind infrastructure and energy projects across the UK and internationally, with standout expertise in hydrogen, heat networks, and renewables. The team is active across the full project lifecycle and is a go-to adviser for government bodies, major transport operators, and energy developers. The practice is led by Edinburgh-based Stuart McMillan, who is valued by clients for his ability to handle complex project financings, both in the UK and overseas. Keith Beattie has recently led on Ministry of Defence-instructed mandates and Ross Fairley predominantly focuses on the renewable energy sector. Ian Salter is a key name for nuclear-related work and Graham Soar’s offering spans infrastructure and real estate finance. Victoria Allsopp and Jessica Evans also come recommended.

Clyde & Co advises across the full lifecycle of infrastructure projects in the UK and internationally, with particular strength in PPP/PFI matters. The team acts for sponsors, contractors, and service providers on operational issues and complex disputes, including multiparty litigation. Laura Coates leads the team and is a prominent name in the PPP/PFI sector, handling both contentious and non-contentious matters. Co-head Victoria Peckett draws on deep experience in the construction sector to advise major developers on project delivery, development, and disputes. Christopher Leadbetter brings further contentious construction expertise, while Steve Cannon spearheads the real estate and banking and insolvency offering. Ana Bonnington provides broad support.

Advising across the UK, Middle East, Africa and Central Asia, Dentons acts for sponsors, funders and public bodies on complex PPP/PFI and concession-based projects. The group is especially strong in social infrastructure, defence, rail and offshore transmission, and is noted for its regulatory expertise and experience with innovative delivery models, including Regulated Asset Base structures. Team head Mark Cheney is active on conventional, renewable, and energy transition projects, advising on a variety of financing structures. John Inglis continues to provide trusted finance counsel to a range of export credit agencies, banks, and investors. Gareth Tenner is valued by both public and private sector clients for his PPP/PFI expertise and Graham Richmond comprehensively handles the construction, development, and commercial aspects of projects. Thomas Collier also comes recommended.

Gowling WLG is active across the full lifecycle of major energy and infrastructure projects, with strong capabilities in development, procurement, and financing. The team regularly advises on transport, defence, and nuclear mandates, as well as energy transition projects involving battery storage, hydrogen, and solar. A further area of notable experience is social infrastructure and complex PPP arrangements. Nath Curtis and Dominic Richardson co-lead the team from London and Birmingham respectively. Curtis is noted for his project finance work in the energy transition, while Richardson is acclaimed for his broad asset knowledge spanning transport, social infrastructure, civil infrastructure, and utilities. Elizabeth Williams is a go-to in the practice for defence sector work. Jonathan Brufal advises public and private sector clients on project delivery matters and Alexandra Poynter is skilled in procurement and contract drafting and negotiations. Stephen Kenny and Andrew Newbery retired in 2024.

King & Spalding LLP advises on the development and financing of major global energy projects, with particular strength in hydrogen and ammonia mandates. The team supports clients throughout the project lifecycle, combining development, joint venture, construction, financing, regulatory and tax expertise. Kelly Malone leads the team and advises a broad mix of sponsors, developers, and sovereign-backed entities on energy ventures across APAC, LATAM, Europe, and the Middle East. Daniel Giemajner and Matthew Hardwick joined from Akin in January 2025, adding further strength in construction and financing. Nadia Cinti supports a wide range of lender and borrower clients, while Frederick Lazell is noted for his regulatory expertise.

Backed by a global network and deep project finance expertise, Mayer Brown International LLP advises governments and major corporates on large-scale energy and infrastructure developments across Europe, Africa, the Middle East, Asia, and the Americas. The team is especially active in the energy transition, with growing strength in hydrogen, mining, and PPP developments. Group lead Rachel Speight is a prolific PPP practitioner and advises on projects across Africa, Europe and the Middle East. Richard Nelson is particularly active in the midstream and upstream spaces and Massimo Amoruso is well-positioned to counsel clients on energy transition technologies such as CCUS and battery storage. Charles Pacey supports on construction and engineering matters. Kirsti Massie left the firm in December 2024.

Orrick, Herrington & Sutcliffe (UK) LLP advises across the project lifecycle, with cross-border strength in Europe, the Americas and Asia Pacific. The team is active on transactions involving renewables, transport, digital infrastructure, and social assets, with particular expertise regarding project finance, regulatory frameworks, and commercial agreements for leading institutional investors and industrial clients. Evan Stergoulis leads the practice. Simon Alsey and Adam Smith are highly active in the energy sector and leading contacts on onshore and offshore wind mandates. Jon Thursby is a go-to in the team for construction expertise and is also highly skilled handling offshore wind projects. Albert Yu is highlighted for his experience in the nuclear sector, overseeing licensing, regulatory and financing issues. Craig Bruce and Oliver Sikora also come recommended.

Sharpe Pritchard LLP advises across the lifecycle of complex public infrastructure schemes, with particular strength in PPP and PFI. The team has played a key role in new-build RAB-based infrastructure models and regularly advises on major government-backed projects involving the energy transition, renewables, hydrogen, transport and district heating. Helming the group is the highly experienced Nicola Sumner, who is widely recognised as a market-leading adviser on public sector procurement matters. Fellow practice co-heads Roseanne Serrelli and Steve Gummer bring further PPP and infrastructure expertise and are active on a wide array of projects, from utilities and power to digital infrastructure and transport ventures. Allan Owen is valued by clients for his ability to handle both construction and project finance instructions. Juli Lau is instructed by utilities and public authorities on project development and commercial matters. Ellen Painter also comes recommended.

Trinity International LLP focuses exclusively on energy and infrastructure development and financing mandates across Africa, Asia, Eastern Europe and Latin America. The team is regularly instructed on pathfinder deals in emerging markets, including renewable energy, power generation, and climate-linked financings involving DFIs, commercial lenders and government-backed entities. Co-leading the practice is Paul Biggs, who has deep experience advising on major projects in Africa; Simon Norris, who handles greenfield and brownfield transactions across both conventional and renewable power builds; and Conrad Marais, Hugh Naylor, and Kaushik Ray, who advise on a broad range of corporate transactions in the sector. Further names of note include Fiona Gulliford, who has a background in PPP ventures and project finance, and Rinku Bhadoria, who is particularly active on renewable builds in Africa and the Middle East. Luke Muchamore also brings crucial expertise in drafting and negotiating construction and commercial contracts.

Acting across sectors including social infrastructure, transport, health, life sciences and regeneration, Trowers & Hamlins LLP advises both public sponsors and private contractors on complex project delivery mandates. Recent work includes advising on NHS PFIs and education and life sciences builds, alongside engagement in developing new PPP models to support UK infrastructure investment. Paul McDermott spearheads the practice and leverages over 25 years of PPP experience to comprehensively advise a range of public authorities and developers. Amardeep Gill is active on transport infrastructure rollouts, city centre renovation projects, and leisure facility developments. Assad Maqbool leads the firm’s education offering and Michael Mullarkey has a strong track record on hospital projects. Victoria Thornton widely supports.

With a balanced public-private focus, Browne Jacobson LLP delivers complex regeneration and environmental infrastructure projects. It regularly advises government departments and local authorities on waste, recycling, and green energy procurements, while also acting for private developers on major regeneration schemes. Group lead Craig Elder advises a strong roster of public and private sector clients on PPP/PFI projects and is active across the full spectrum of infrastructure verticals. Stephen Matthew is highlighted for his strength on regeneration projects and Michael Mousdale is routinely sought out by local government authorities for PFI counsel. Peter Ware, Anja Beriro and Nick Hurley also come recommended.

Eversheds Sutherland (International) LLP’s projects team advises on the structuring, delivery and financing of major infrastructure and energy schemes. Active in the UK and internationally, the team is experienced in traditional and emerging sectors, including renewables, transport, digital infrastructure and utilities, and is supported by specialists across planning, construction, finance, and regulatory law. Team head Alex Carver regularly advises lenders, sponsors and developers on cross-border financings, while co-head Dominic Lacey spearheads the firm’s transport offering. Jubilee Easo and Mukhtiar Tanda co-lead the global energy and government and infrastructure platforms, respectively. Mark Dennison also comes recommended, with asset engagement spanning social infrastructure and the energy transition.

Fladgate LLP advises across the full lifecycle of UK PFI and PPP infrastructure and energy projects, with particular strength in secondary market transactions and operational issues. The firm regularly acts for investors, developers and contractors on variations, handbacks, disputes, refinancing and M&A, with notable expertise in street lighting and battery storage assets. Team head Andrew Bessemer Clark is predominantly focused on corporate transactions. Sam Tye has a ‘real skill for detail' and is often instructed on the construction and operational phases of renewable builds. David Weare and Christian Charles are comfortable handling disputes and operational and handback issues relating to PFI projects. Kim Fowler provides further commercial expertise, while Michaela Patterson has a contentious matter background.

Gibson, Dunn & Crutcher advises on the development, financing, and acquisition of large-scale energy and utilities assets across Europe, the Middle East, Africa, and Asia. The practice is experienced in cross-border project financings, particularly in the power, petrochemicals, and renewables sectors, acting for a broad range of sponsors, lenders, and government-backed entities. Team head Ben Shorten is highly active on the financing of renewables, utility and infrastructure projects, particularly in the Middle East. Trinh Chubbock is well placed to act on the development and commercial aspects of upstream and midstream assets.

Stephenson Harwood is recognised for its deep expertise in operational PPP and PFI mandates, regularly advising equity investors, project companies and contractors across sectors including health, education, and waste. The group is active on handbacks, refinancings, disputes and secondary market activity, and is increasingly sought-after in the transport and rail infrastructure space. Team head Jonathan Cripps is noted for his strength in handling social infrastructure builds and works with a variety of public and private sector entities. Rebecca Carter is well-placed to act on complex PPP/PFI builds, while Kirsti Massie, who joined from Mayer Brown International LLP in January 2025, has a particular focus on energy and power ventures. Ryan Fordham brings construction and engineering expertise following his move from Shoosmiths LLP in January 2025. Phil Harris continues to support across the full spectrum of practice mandates.

Sullivan & Cromwell LLP acts for sponsors and lenders on complex cross-border project development and financings, particularly in the energy, oil and gas, mining, and infrastructure sectors. The team advises on all aspects of the project lifecycle, from structuring and equity arrangements to multi-source financings and disputes. Stewart Robertson leads the department and is regularly instructed on high-value project finance mandates globally. Jonathon Hannah, who joined the partnership in January 2025, is particularly active on development and financing matters in the mining and minerals space. Silvia Brünjes provides broad support across the practice.