United Science Industries, Inc. (USI) is a professional services organization providing consulting and engineering services in the areas of environmental compliance, industrial compliance, asbestos inspection, environmental due diligence and GIS/CAD/GPS services.  From its founding as a start-up environmental firm in 1989, USI has grown to be one of the leading professional services organizations in southern Illinois.  In addition, USI serves a diverse group of private, commercial, industrial and government customers throughout the United States.  As a full-service organization, our goal is to provide each client with a personalized solution to their engineering and consulting needs.