After nearly 360 acquisitions in its 30-year history, Airgas is the largest U.S. distributor of industrial, medical, and specialty gases and hardgoods. The company is also one of the largest U.S. distributors of safety supplies. Distribution of gases and hardgoods represents about 90% of total sales, while the remainder comes from other operations producing gaseous products. Airgas uses multiple sales channels to deliver its products to a diversified customer base. The firm generates $5 billion in sales and employs 14,000 workers.