ABM

Abm Industries Incorporated

One of the world's largest facility services companies, ABM keeps offices, schools, airports, sports venues, and hospitals running by handling janitorial work, engineering, parking, and energy solutions for clients across the country. It began in 1909 when founder Morris Rosenberg spent a few dollars on a bucket and mop and walked San Francisco's Fillmore Street washing shop windows. During the 9/11 attacks, an ABM window washer used his squeegee to cut through drywall and free himself and others from a trapped elevator, and that squeegee now sits in the Smithsonian.