Ash-Dome from Ash Manufacturing - Design and manufacture of high quality observatory domes for professional and amateur astronomers and institutions. www.ashdome.com
Chicago Bridge & Iron Company - Specializes in the engineering and construction of large steel structures. www.chicagobridge.com
CoilPlus - Steel products and steel processing services. www.coilplus.com
Harbour Contractors - Program and construction management and design/build/lease services. www.harbour-cm.com
Spectrum Technologies - Measuring and monitoring instruments for the agricultural market, including weather, soil, pests, and crop nutrients. www.specmeters.com
