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AmcoGiffen provides innovative multi-disciplinary engineering, construction and maintenance services for assets.

AtkinsRéalis is a world-leading professional services and project management company dedicated to engineering a better future for our planet and its people.

BakerHicks are a design, engineering and project delivery company that specialise in complex infrastructure, process and built environments across the full project life cycle.

BAM Nuttall work across many sectors including rail, tunnelling, energy, water, nuclear, flood defence and marine.

Founded in 1875 and subsequently acquired by Legal and General, Cala has grown to become one of the UK's largest house builders. We are passionate about sustainable and inclusive communities, and are proud to have been awarded the maximum five-star rating for customer satisfaction.

Costain helps to improve people's lives through smart infrastructure solutions to meet urgent national needs across the UK's energy, water, transportation and defence markets.

The Environment Agency works to create better places for people and wildlife, and support sustainable development.

Our vision is to build a better future through the development and operation of sustainable infrastructure, improving urban mobility and maintaining the highest levels of safety.

Galliford Try is one of the UK's leading construction groups, working to improve the UK’s built environment and delivering lasting change for the communities we work in.

A national contractor specialising in civil engineering. Our work connects communities, builds a better future and transform the places where we live, work and relax.

Since its formation in 1873, HOCHTIEF has delivered complex infrastructure projects internationally, enhancing environments and pushing engineering boundaries.

Kier’s purpose is to sustainably deliver infrastructure which is vital to the UK.

Laing O’Rourke is a privately owned, internationally focussed engineering enterprise with world-class capabilities spanning the entire client value chain.

We use our engineering expertise and long-term relationships to deliver safe, innovative and responsible infrastructure for public and private sector customers.

We’re a global engineering, management and development consultancy focused on guiding our clients through many of the planet’s most intricate challenges.

We work round-the-clock to provide a safe, reliable experience for the millions using Europe's fastest-growing railway each and every day.

Skanska, one of the UK’s leading contractors, is an inclusive and responsible business that is helping to build a better society.

Thornton Tomasetti optimizes the design and performance of structures, materials and systems for projects of every size and level of complexity.

Consulting Engineers, Tony Gee is renowned for delivering complex, competitive permanent and temporary infrastructure design solutions.

Harnessing innovation and sharing insights across our diverse, international team to create a tomorrow’s world that's cleaner, greener and safer.

Taylor Woodrow is the civil engineering division of VINCI Construction UK, which forms part of VINCI, a world leader in concessions and construction.

Waterman Aspen welcomes engineers and technical specialists to make their mark on some of the biggest infrastructure projects across the UK on a secondment basis. We have built careers and provided technical expertise to our clients for 35 years.