Airgas

AkzoNobel Specialty Chemicals (legacy, now Nouryon). History: spun off in 2018, sold to Carlyle. Pioneered surfactants, ethylene oxide derivatives, peroxides, cellulose ethers. Independent since 2018 as Nouryon.

Airgas, an Air Liquide company (Radnor, PA). 2024 revenue ~$6.8B. Industrial, medical, specialty gases. Welding supplies, safety products. 1,400+ locations. Acetylene, CO2, argon mixtures, helium. Packaged gases.