Founded in 1988, Presidential Service Industries, Inc. (PSI) is a minority owned and operated janitorial contractor and commercial cleaning business proudly serving the entire DC metro and Northern Virginia region. With over 31 years of experience in the commercial cleaning industry, PSI is one of the area’s most trusted and respected leaders in the janitorial contractor and commercial cleaning field. In fact, our decades of cleaning experience allow us to properly tailor commercial cleaning plans for all our clients.