Laing O’Rourke is an international engineering and construction company based in Dartford, Kent, UK. Established in 1978 by Ray O’Rourke, it is the largest privately owned construction firm in the UK. The company operates primarily in Europe and Australia, focusing on infrastructure and building projects across various sectors, including transportation, social infrastructure, commercial, and energy.

The company offers a range of services, including engineering and construction, project management, and modular manufacturing. It utilizes advanced techniques like Design for Manufacture and Assembly (DfMA) to enhance construction efficiency and safety. Laing O’Rourke also provides specialized mechanical and electrical engineering services through its subsidiaries and maintains an in-house supply chain for equipment and logistics support.

With a commitment to innovation and sustainability, Laing O’Rourke aims to lead the construction sector by 2025. The company emphasizes an integrated delivery approach, combining in-house expertise with technology to improve project outcomes. Ray O’Rourke continues to play a key role in the company’s leadership, which has seen significant growth and strategic acquisitions over the years.