| Year | Detail |
| 1853 |
Veolia founded as Compagnie Generale des Eaux. |
| 1880 |
Compagnie first established a toehold outside France. |
| 1884 |
It expanded its activities to include treating wastewater. |
| 1912 |
Founded the Compagnie Generale d’Entreprises Automobiles. |
| 1919 |
It entered the market for household waste collection in Paris. |
| 1937 |
Compagnie received its first energy performance contract. |
| 1973 |
The Chauffage Service company merged with the Compagnie. |
| 1998 |
Compagnie Generale des Eaux was renamed Vivendi. |
| 2003 |
Vivendi Environnement was renamed Veolia Environnement. |
| 2010 |
Veolia inaugurated the world’s largest sludge treatment and recovery plant in Hong Kong. |
| 2021 |
Veolia and Suez merged. |