QFS

Founded in 1997, Quality Facility Solutions Corp provides facility solutions to government, commercial, and residential facilities in the United States. The company offers steady maintenance, emergency/restoration, and security and concierge services; and specialized cleaning and construction services, including exterior maintenance, landscaping, mid-construction, and post-construction cleaning. It serves office complexes, government and municipal complexes, school and university campuses, and residential complexes and high-rises; and hospitality, retail, industrial and manufacturing, food service, senior care, medical, and sports and entertainment sectors. They're headquartered in Brooklyn, New York.