Private company

Degrémont

Logo: http://www.degremont.com/en/homepage/, Non-free logo, via Wikipedia3

French water treatment company

Degrémont is a company specializing in the production of drinking water, and in the treatment of sewage and sludge. After starting as a family business in France in 1939, it has since become a subsidiary of Suez Environment, employing 4,600 people in 70 countries, and generating annual revenues of €1.520 billion (2010 figures).2 It was founded by Gilbert Degrémont.1 Wikipedia text CC BY-SA 4.0

Last updated Oct 20, 2026.

Overview

1939Founded1

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Degrémont is a company specializing in the production of drinking water, and in the treatment of sewage and sludge. After starting as a family business in France in 1939, it has since become a subsidiary of Suez Environment, employing 4,600 people in 70 countries, and generating annual revenues of €1.520 billion (2010 figures).2

Corporate structure

Degrémont is part of a group headed by SUEZ. 19 entities, 5 countries on record. Switch between the flow chart and the network, and select any entity to see its details.

  • SUEZ Paris, France
    • Degrémont Rueil-Malmaison
    • Lydec Subsidiary · Casablanca, Morocco
    • Suez Consulting & Engineering Subsidiary
    • Suez Water Technologies Subsidiary · Trevose
    • Tarmac Aerosave Stake · 33.6% · Azereix, France
      • TARMAC ARAGON SLU Subsidiary · Teruel, Spain
    • Acea Stake · 23.33% · Rome, Italy
      • Acea Ato 2 Subsidiary · Rome, Italy
      • ACEA ENERGIA S.P.A. Subsidiary · Roma, Italy
      • ACEA ENERGY MANAGEMENT S.R.L. Subsidiary · Roma, Italy
      • AQUANEXA S.R.L. Subsidiary · Milano, Italy
        • INFORMATION DEVELOPMENT AND AUTOMATION S.R.L. Subsidiary · Lissone, Italy
        • TEC.AM S.R.L. Subsidiary · Albino, Italy
      • SIMAM S.P.A Subsidiary · Senigallia, Italy
    • OZONIA FRANCE Subsidiary · Toulouse, France
    • SUEZ Eau France Subsidiary · France
    • SUEZ Recycling & Recovery France Subsidiary · France
    • Suez Smart Solutions Subsidiary · France

Built from parent and subsidiary links from GLEIF, the Global Legal Entity Identifier Foundation (CC0); subsidiaries, stakes and holdings from Wikidata (CC0). Each entity in the chart links to its source.

The story

Founded by Gilbert Degrémont in 1939.1

Founded by Gilbert Degrémont in 1939 on the outskirts of Paris, as a follow-up of his father Emille Degrémont's water treatment company established 1904 at Le Cateau-Cambrésis, the Degrémont company soon entered the international market, with contracts in countries such as Egypt, Iran, Indonesia and Peru. In 1972, the company merged with SGEA to become Lyonnaise des Eaux, which later became part of the Suez Group. Today, it is a subsidiary of Suez Environment and has operations worldwide.

Gilbert Degrémont’s grandfather, Adalbert, had already set up a mechanical engineering plant in the North of France in 1870, which was converted by his son, Emile, into a water treatment business. After completing an engineering degree in agronomics, Gilbert launched the Degrémont company that is still in existence today.

In 2023, Degrémont was selected for the complete on-site reconstruction of the current Haliotis plant in Nice. The contract is valued at several hundred million euros.

From Wikipedia’s article on Degrémont, shared under CC BY-SA 4.0.4

Leadership

Who has led Degrémont, and when. Pick a name to see everywhere that person has worked.

Subsidiaries and ownership

Parent company

From Wikidata.1

Timeline

  1. 1939Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

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