Suez S.A., known from 1997 to 2001 as Suez-Lyonnaise des eaux, was a leading French multinational corporation headquartered in the 8th arrondissement of Paris,[1] with operations primarily in water, electricity and natural gas supply, and waste management.

[2] Suez was (and remains, through GDF Suez) one of the oldest continuously existing multinational corporations in the world, with one line of corporate history dating back to the 1822 founding of the Algemeene Nederlandsche Maatschappij ter begunstiging van de volksvlijt (literally: General Dutch Company for the favouring of industry) by King William I of the Netherlands (see Société Générale de Belgique).

"[4] On 3 September 2007, Gaz de France and Suez announced agreed terms of merger.

[5] As a consequence of the conditions posed by the European Commission with regards to allowing the merger, on 29 May 2008 Suez sold its Belgian gas supplier Distrigas to the Italian company Eni for €2.7 billion.

[6] On 22 July 2008 the group GDF Suez, a company of €74 billion of annual turnover, was officially created.