Grontmij, formerly Carl Bro, is a leading European company in the Consulting & Engineering industry with world class expertise in the fields of energy, highways & roads, light rail, sustainable buildings and water. Our leading principle is Sustainability by Design. This enables our professionals to support clients in developing the built and natural environment. Established in 1915, Grontmij is listed on the NYSE Euronext stock exchange. Grontmij is Acquired by Sweco in 2015.