Katerine Janitorial Services, 1240 Monument Blvd, Concord, CA 94520, US

Founded in 1998 by Carlos Alamo and his wife, Concar provides commercial cleaning services for the areas of Oakland, Alameda and San Francisco. The company specializes in industrial and commercial janitorial services, such as pressure washing, carpet cleaning, floor stripping and window cleaning. A separate part of the business also offers supplies, like paper products, trash liners, soaps and lighting, for purchase. Concar has been a member of the International Sanitary Supply Association (ISSA) since 2000 and was a member of the Building Service Contractors Association International (BSCAI) in 2004 and 2006.