Advanced American Technology, Corp.
Specializing in LINE-X Industrial Protective Coating.
Ash-Dome from Ash Manufacturing
Design and manufacture of high quality observatory domes for professional and amateur astronomers and institutions.
Chicago Bridge & Iron Company
Specializes in the engineering and construction of large steel structures.
Harbour Contractors
Program and construction management and design/build/lease services.
Spectrum Technologies
Measuring and monitoring instruments for the agricultural market, including weather, soil, pests, and crop nutrients.