Founded in 1902, the Air Liquide Group expanded globally early on level through the marketing of an innovative air liquefaction process. Since the 1990s, it also has activities in the health sector, such as the production of oxygen. Today, it is the world’s second largest producer of industrial gases for industry and the health sector.

As a producer of gases such as oxygen, nitrogen, argon and hydrogen, Air Liquide supplies all major industrial sectors such as chemicals, refining, steel, space and nuclear. It manages and operates vast networks of pipelines in major heavy industrial areas globally.

Today, Air Liquide is seeking to position itself as a major player in the "green" transition of these large industries, particularly through hydrogen, of which it is one of the main producers and promoters in France and Europe.