NANTAISE DES EAUX INGÉNIERIE was created following the merger in 1991 of two medium-sized companies: SOAF, located in Sainte Luce sur Loire (F) and TES, located in Roanne (F)

Created in 1953 by J.J. Régent, SOAF was able to make a name for itself in France and abroad by specialising in manufacturing small waste water-treatment plants implementing concrete prefabrication techniques, as well as polyester models that are easy to transport and assemble. Some of these models such as SYMAC and JUMBO have become well- known names in export thanks to their huge reputation.

TES Roanne's waste water treatment department was created in 1976. TES specialised in building a wide range of waste water-treatment plants for both communities and industries (paper mills, food processing, textile, pharmacy...). The complete range went from 1000 to 150,000 inhabitant-equivalents.

The 1991 merger was expressed by a geographical grouping in Sainte Luce sur Loire in 1993. The name NANTAISE DES EAUX appeared in 1996. Thus a new company covering the field of activity of the two previous ones was created.

NANTAISE DES EAUX has restructured and modernised itself on every level: creating new work tools, developing new technologies and establishing procedure records for all of its service.

Today, NANTAISE DES EAUX INGÉNIERIE is a key player in its field and enjoys a very good reputation. Its plants are present in France and abroad with several thousand of references from 100 to 250,000 inhabitant-equivalents in more than 70 countries. The ISO 9001 certification: 2000 obtained in February 2009 allows it to continue developing in France and above all abroad.