About Air Liquide

A world leader in gases, technologies and services for Industry and Health, Air Liquide is present in 80 countries with approximately 66,00 employees and serves more than 3.6 million customers and patients. Oxygen, nitrogen and hydrogen are essential small molecules for life, matter and energy. They embody Air Liquide’s scientific territory and have been at the core of the company’s activities since its creation in 1902.

Air Liquide in numbers:

  • 23,011 M Euros Group revenue in 2018
  • 80 Countries
  • 3.6+ million customers and patients
  • 66,000 employees


At a Glance

The four business lines comprising the Gas & Services activities are closely tied by a strong industrial philosophy where proximity is key.


Renewable Energy

Air Liquide has developed an efficient, state-of-the-art membrane technology that makes upgrading biogas efficient and cost effective, providing a continuous, reliable source of renewable energy. Air Liquide has acquired strong in-house know-how for landfill gas well management, and design, engineering, construction and operation of biogas upgrading plants. This experience, along with industry leading biogas upgrading technology, helps our plants run reliably and with the highest safety standards.


  • Equipment suppliers

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