Mott MacDonald

Mott MacDonald is a global, employee‑owned engineering, management, and development consultancy that plans, designs, delivers, and maintains infrastructure that is integral to people’s daily lives. Formed in 1989 through the merger of transport specialist Mott, Hay and Anderson and water engineering firm Sir M MacDonald & Partners, it is headquartered in London and operates internationally across Europe, the Americas, the Middle East, Africa, and Asia. The group reports close to 20,000 employees in more than 50 countries, a presence in over 150 countries through projects, and 2024 gross revenue of £2.52bn. It is one of the world’s largest employee‑owned companies, with governance and policies designed to preserve its independence. The company’s core markets span transport, energy, water, buildings, environment and society, federal and defense, and digital infrastructure. It supports clients such as government agencies, utilities, developers and investors from early planning and business case development through engineering design, project and program management, and long‑term operations and asset management. In energy it plays a key role in system transformation, including electrical networks, hydropower, pumped‑storage schemes, nuclear and small modular reactor technology, renewables, offshore wind, hydrogen and storage. Project examples include major urban and rail schemes such as Sydney Metro, the Los Angeles Regional Connector, Ontario Line in Toronto, and the Silicon Valley BART extension, as well as wastewater, flood protection and large brownfield regeneration and masterplanning projects. Strategically, Mott MacDonald focuses on sustainability, social outcomes and climate resilience, underpinned by digital tools and data‑driven decision support. Through initiatives such as its Carbon Crunch series, climate finance and resilience advisory, and local area energy planning, the firm works to integrate decarbonisation, nature, and social value into infrastructure investment. Its asset management and operations and maintenance services aim to optimise lifecycle performance, manage climate and operational risk, and support clients in meeting net‑zero and wider environmental objectives.