A forward thinking consultancy, Grontmij combines a multidisciplinary approach with access to international expertise to deliver robust and sustainable solutions.

Established in 1915, Grontmij is the third largest engineering consultancy in Europe with approximately 9,000 professionals and almost 300 offices across the region and a further 50 offices globally. 

Grontmij’s strategically located office network enables the consultancy to think globally and act locally.

Core sectors

In the UK, Grontmij works with clients in the private and public sectors across seven main disciplines of strategic consultancy, water, climate and energy, buildings and landscape architecture, transportation, environment and contract consultancy. 

At the heart of Grontmij's business is the sustainability by design principle. It is a leading value proposition for customers delivered by four business lines: Planning & Design, Transportation & Mobility, Water & Energy, Monitoring &Testing.

Organic growth and strategic acquisitions

Consistent organic growth over the last five years has been supplemented by strategic UK acquisitions in the built and natural environment and in commercial consultancy. Our structure, size and strength mean that we deliver solutions to challenges on a local, national and international level.