Air Liquide

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Air Liquide S.A.

Air Liquide headquarters in Paris
Company type	Société Anonyme
Traded as	Euronext Paris: AI CAC 40 component
Industry	Chemicals, Health care, Engineering
Predecessor	AG für Kohlensäure-Industrie Air Liquide Austria
Founded	1902; 123 years ago (1902)
Founder	Paul Delorme
Headquarters	Quai d'Orsay, 7th arrondissement, Paris, France
Key people	Benoît Potier (Chairman), François Jackow (CEO)
Products	Industrial gases, fine chemicals
Revenue	€27.05 billion (2024)[1]
Operating income	€5.39 billion (2024)[1]
Net income	€3.30 billion (2024)[1]
Total assets	€51.86 billion (2024)[1]
Total equity	€27.62 billion (2024)[1]
Number of employees	67,800 (2023)[1]
Website	www.airliquide.com

Air Liquide S.A. (/ˌɛər lɪˈkiːd/ AIR lih-KEED, French: [ɛːʁ likid]; literally "liquid air") is a French multinational company which supplies industrial gases and services to various industries including medical, chemical and electronic manufacturers. Founded in 1902, Air Liquide is the second largest global supplier of industrial gases by revenues (after Linde plc) and has operations in over 70 countries.^[2][3]

The company's headquarters are in the 7th arrondissement of Paris.^[4] It also has major offices in Japan, Houston, Newark, Delaware, Frankfurt, Shanghai and Dubai. The company's research and development (R&D) targets the creation of industrial gases, and gases that are used in products such as healthcare items, electronic chips, foods, and chemicals. The major R&D groups within Air Liquide focus on analysis, bioresources (foods and chemicals), combustion, membranes, modeling, and the production of hydrogen (H₂) gas. Air Liquide owned the patent for Aqua-Lung until it expired.