Caledonian Access Competitors

AECOM is the global infrastructure leader, committed to delivering a better world. As a trusted professional services firm powered by deep technical abilities, we solve our clients’ complex challenges in water, environment, energy, transportation and buildings. Our teams partner with public- and private-sector clients to create innovative, sustainable and resilient solutions throughout the project lifecycle – from advisory, planning, design and engineering to program and construction management. AECOM is a Fortune 500 firm that had revenue of $16.1 billion in fiscal year 2024. Learn more at aecom.com.

We are an international, integrated consultancy of engineers,designersand advisers. For over 45 years, we have built an unrivalled reputation by delivering creative, value-led solutions for the benefit of people, places and planet. Described by our clients as 'passionate', 'innovative' and 'collaborative', Buro Happold is synonymouswith the delivery of exceptionally complex projects on every continent, working with the world's leading architectural practices and organisations, such as the United Nations, UNESCO and C40 Cities. Through our global community of driven, world-leading engineering, advisory and design professionals, we are acting to address major challenges in an ever-evolving world.

We are an engineering, management and development consultancy and one of the largest wholly employee-owned firms of our kind. We plan, design, deliver and maintain the transport, energy, water, defence and security, and buildings infrastructure that is integral to people's daily lives. Our core strength is using our expertise to overcome complex challenges to deliver benefits for our clients and the communities they serve.