United Service Companies Raises Cleaning Standards with GBAC STAR Service Accreditation
← Back to press releases NORTHBROOK, Ill.—May 26, 2021—Nationwide janitorial, staffing, and security service provider United Service Companies (USC) is the latest building service provider to earn the prestigious GBAC® STAR Service Accreditation from the Global Biorisk Advisory Council™, (GBAC), a Division of ISSA. The GBAC STAR Service Accreditation provides third-party validation of a