The Colsen group, founded by Joop Colsen in 1989, has grown into an international specialist in the field of water, sustainable energy and the environment. With offices in the Netherlands, Italy, Spain and South Africa, and a global partner network, we provide knowledgeable local support. Short lines of communication, flexibility and innovation come first in all the branches of this family-owned business. A leading developer of innovative technologies, the Colsen group remains at the cutting edge of environmental sustainability