Case Study

  • Scientific Cleaning in the Built Environment

    By Bobby Moddrell, Manager of Training and Compliance, Custodial Services, University of Texas at Austin The University of Texas at Austin is a big place, twelve million square feet to keep clean in a big variety of buildings. For the past decade, we’ve cleaned using a process called OS1, developed by ManageMen. Some call it […]

  • PortionPac Chemical – Compression Pioneer

    January 13, 2011 Marvin Klein and Syd Weisberg founded PortionPac in Chicago in 1964, selling to the institutional and industrial janitorial market that typically bought 5-gallon pails and 500 pound, 55-gallon drums of cleaning detergents. Decades before the book, they began acting on the kernel idea of Compression by pioneering a cleaning system using accurate and […]