PMC specializes in serving janitorial, high tech, cGMP, and bio-pharmaceutical facility cleaning as well as electrical, painting, facilities support, and landscaping services. The company was founded in 1931. PMC has over 700 employees throughout the United States, and cleans 35 million square feet on a daily basis. PMC was a pioneer in the development of protocols for cleanroom cleaning and gowning, as well as the first formalized submicron cleaning protocols in the world.