https://pressroom.prlog.org/HorizonServicesCorp/ About Horizon Services Corporation - Horizon Services Corporation has been serving the northeast since 1979.As a CIMS certified organization we are recognized as an industry leader in corporate and construction cleaning solutions. https://www.prlog.org/10282257-horizon-services-president-pens-first-book.html Theodore Hsu shares the business secrets that helped him transform a fledgling cleaning company into a recognized leader in the building services leaderTue, 14 Jul 2009 17:13:36 GMT