Eversheds Sutherland (International) LLP is widely recognised for its expertise in parliamentary and infrastructure consenting, advising on all aspects of the legislative and statutory approvals process. The team has particular strength in hybrid and private bills, as well as DCOs, TWAOs and Harbour Orders. Known for its role in promoting the HS2 railway project, the practice combines legal and strategic insight in supporting major infrastructure schemes. James O’Connor, a partner and Parliamentary Agent, leads on advising infrastructure stakeholders through the consenting and implementation phases. Stephen Collings focuses on coordinating DCO and TWA projects and developing commercial strategies to secure statutory powers. Juliet Clark plays a key role in promoting transport infrastructure projects. The team’s capabilities have been further enhanced by the addition of Robert Gowing, reinforcing its strength in navigating complex legislative processes.

Pinsent Masons LLP's parliamentary and infrastructure team advises on the statutory and legislative frameworks that support major infrastructure projects. The team works across the transport, energy and water sectors, with experience spanning private and hybrid bills, DCOs, TWAOs, Harbour Orders and broader legislative developments. Much of their work involves navigating the intersection between legal process and parliamentary procedure, particularly where statutory powers are required. Robbie Owen, a Roll A Parliamentary Agent, has long experience advising on infrastructure schemes promoted through parliamentary and statutory routes. Heidi Slater focuses on public sector infrastructure and regeneration work, often acting on behalf of local and regional authorities. David Thorneloe draws on experience from government legal departments, where he was closely involved in the development and passage of primary and secondary legislation. His insight into parliamentary procedure and policy-making informs much of the team’s legislative advice. George Wilson advises on planning and consenting matters, with a focus on infrastructure requiring TWAOs, DCOs and parliamentary powers. The team operates with an emphasis on legal detail and institutional process over promotional positioning.

Sharpe Pritchard LLP focuses on parliamentary and infrastructure work, primarily acting for public sector clients. The firm is particularly known for promoting private Acts of Parliament—having promoted more than any other firm of parliamentary agents—and for advising those opposing infrastructure projects requiring statutory authorisation, including hybrid bills, Development Consent Orders, and Transport and Works Act Orders. Alastair Lewis advises on the consenting of nationally significant infrastructure projects, including DCOs, TWAOs and harbour revision orders. His work also involves drafting primary and secondary legislation, advising on amendments to government bills and navigating parliamentary procedures. Emyr Thomas specialises in drafting, promoting and opposing legislation, advising on procedural issues, and acting as an advocate before parliamentary committees. He is regularly involved in DCO processes, including the special parliamentary procedure, and also advises on compulsory purchase, planning and environmental law. Aidan Dickinson leads the firm’s compulsory purchase work, advising acquiring authorities through all stages of the process. He also advises on land transactions and represents clients promoting or objecting to infrastructure projects requiring statutory powers.

Winckworth Sherwood LLP has a well-established parliamentary practice, recognised for its work drafting and promoting legislation for major infrastructure projects. The team has played a significant role in the development and implementation of the HS2 hybrid bill and remains active across the rail and harbour sectors. Its expertise spans hybrid bills, Development Consent Orders and Transport and Works Act Orders, with clients including local authorities, statutory undertakers and public bodies. Paul Irving, a Roll A Parliamentary Agent, now acts in a consultant capacity, drawing on his extensive experience in parliamentary, planning, compulsory purchase and environmental law. Alex Dillistone advises on infrastructure projects in the rail, ports, and energy sectors, with a strong understanding of statutory consent processes. Jane Wakeham supports clients on a wide range of legislative matters and is noted for her clear and prompt advice on primary and secondary legislation. Emma Rodican-Jones is a key contact for rail infrastructure projects, contributing to the team’s ongoing work on long-term statutory schemes. The practice continues to provide detailed, process-driven advice on complex infrastructure matters.

Addleshaw Goddard's infrastructure consenting and government team advises on a broad range of parliamentary matters, with particular focus on Development Consent Orders, Transport and Works Act Orders and Harbour Orders across the energy, water and transport sectors. The team also handles wider parliamentary work, including legislative procedures and strategy. Francis Tyrrell continues his established practice advising on hybrid bills, TWAOs, Harbour Orders and DCOs. Marnix Elsenaar leads the national Planning & Infrastructure Consenting team and is actively advising on major transport and regeneration projects, including rail schemes promoted through TWAOs. Gary Sector, based in London, is leading on several ongoing DCO applications. Together, the team supports clients navigating complex statutory processes linked to large-scale infrastructure.

Broadfield Law UK LLP is known for its expertise in infrastructure promotion, private bills and parliamentary procedure. Led by Mark Challis, the team advises on legislative processes central to delivering major infrastructure projects. David Mundy brings extensive experience in public, constitutional and regulatory law, with a focus on drafting and promoting legislation. He regularly advises on Brexit-related legal issues, devolution and infrastructure governance. Public authorities rely on his expertise in procurement, state aid and compliance under the Procurement Act and EU-derived regimes, making the firm a trusted adviser in complex infrastructure matters.