L'Air Liquide is engaged in the market of gases for industry, health and the environment. Oxygen, nitrogen, hydrogen, and rare gases make up Co.'s core activities. Co. structures its activities in three segments: Gas and Services, Engineering and Technology, and Other activities. The Gas and Services segment comprises four business lines: Industrial Merchant, Large Industries, Healthcare and Electronics; Engineering and Technology designs, develops and builds industrial gas production plants for Co. and third parties; and the Other Activities segment develops welding and cutting edge technologies, and markets deep-sea diving and swimming equipment to professionals and privates individuals.

Intertek Group provides Assurance, Testing, Inspection and Certification (ATIC) services. Co.'s segments comprised of Products, Trade and Resources. Co.'s products-related division consists of business lines that are focused on quality and safety of physical components and products, as well reducing risk through assessing the operating process and quality management systems of its customers. Co.'s trade division consists of three Global business lines, Cargo & Analytical Assessment, Government & Trade Services, and Agriculture business. Co.'s resources division consists of two business lines, Industry Services, and minerals business.

Soitec is a manufacturer of silicon and integrated circuits. Co. offers products based on Silicon-on-Insulator (SOI), which serves to support the manufacturing of more energy-efficient integrated circuits. Co.'s operations can be divided into three divisions: Electronics, Solar Energy and Lighting. The Electronics division manufactures and sells substrates and components intended for the microelectronics industry; the Solar Energy division manufactures and sells photovoltaic modules, designs and constructs turnkey projects, and operates photovoltaic power plants; and the Lighting division isolates resources to develop materials designed for the production of light emitting diodes.