Martine Macquin

Air Liquide Advanced Technologies designs and manufactures cryogenic tanks. It offers its products and solutions to the aeronautics, space exploration, marine, scientific research, hydrogen energy, chemicals, pharmaceuticals, electronics, and optoelectronics industries. Its services include preventive maintenance; technical and breakdown assistance; operational support; spare parts provision; training; and upgrading. The company was founded in 1962 and is headquartered in Sassenage, France.

Air Liquide Electronics Systems is a French company that assembles industrial plant equipment. It is headquartered in Paris, France.

Air Liquide Biogas Solutions Europe SA is a world leader in gases, technologies, and services for industry and health. The private company is based in Paris, France. With approximately 66,400 employees and serving more than 3.8 million customers and patients in 75 countries, the French company's revenue amounted to €23 billion in 2021. The Air Liquide Foundation supports research, medical or environmental projects, and professional integration programs through technical professions, especially for young people. The company was founded in 2005. Alexandre Demangeon has been the CEO of the company since 2019.