DLA Piper advises across a diverse range of major infrastructure, energy, and transport projects, including leading involvement in the Welsh A465 road development, which closed in 2020. The team is noted for its innovative approach to tenders and contracts, and works on a national and international basis from Manchester. Andrew S. Davies leads the team, and has a strong record in energy sector work, including waste-to-energy and nuclear developments. Liam Cowell and Lorna Pattison specialise in transport and infrastructure work respectively. Meanwhile director Ben Morton acts for funders, sponsors, and local authorities on major energy and transport infrastructure projects. Associates Lauren Fisher and Hayley Mason are credited with key roles on a number of projects, most notably the A465 development.

Addleshaw Goddard advises public and private sector project proponents, financial institutions, and equity investors, on large-scale project financings, acting on a national and international basis on major infrastructure projects in transport, healthcare, education, and energy. The team is led by Michael O’Connor, an experienced expert in public-private transactions, including procurement and project finance loans. Also leading the team, Andrew Pettinger specialises in PFI and local government work, and newly-promoted partner Sara Gilmore, who leads on major energy projects. Director Rob Thompson has notable expertise in waste developments and international projects.

DWF acts for a combination of high-profile private and public sector clients, including local authorities, energy companies, banks, and other financial institutions, handling an array of major national and international projects, particularly within nuclear and renewable energy. Practice head Darren Walsh joined from DLA Piper in early 2020, and is widely recognised for his expertise in international nuclear energy projects, and innovative renewable energy schemes in areas such as green hydrogen and solar. Catherine Haslam heads up the firm's solar team, and is a leading figure on wind, solar and biomass projects, advising developers, funders, and investors. Jonathan Branton provides expertise on competition and state aid issues, while senior associate Melissa Hutchinson is noted for her work on battery storage projects.

Squire Patton Boggs advises a combination of public and private sector proponents, as well as notable financiers, on energy, transport, and social infrastructure developments. It has a strong flow of ongoing PFI work, alongside leading advice on HS2 and clean air projects. The team is led by Nick Helm, who has expertise in a broad range of infrastructure and PPP projects, including major net-zero and clean air developments.  Andrew Herring has notable capabilities in rail infrastructure, working nationally and internationally. Julian Scott is noted for his work on battery storage for investment funds, and Ian Wood  for his nuclear power specialism. Senior associate Amy Scott has wide expertise in infrastructure and energy projects.

Aaron & Partners LLP offers specialist energy expertise to a variety of proponent clients, working primarily on renewable energy developments, handling issues such as site permissions, regulatory issues, and appeals, alongside financing and transactions. The team is led by David Harries , who has led on national and international energy developments. Consultant Richard Forrester has strong expertise in natural resources and waste-to-energy matters, while Keith McKinney specialises in onshore wind projects.