Arntzen Corporation

Petersen Aluminum Corporation was founded in 1965 as a metals service center to the architectural metal industry. The company has a national sales base that allows it to maintain large inventories and cost economies to customers. Petersen Aluminum Corporation has full production facilities in Annapolis Junction, Md.; Tyler, Texas; and Atlanta, Ga. The company offers its catalog as a standard 3-ring binder, Web site and in CD-ROM format. Petersen Aluminum Corporation offers technical assistance and services in areas, such as material selection, finish specification and budgeting. The company provides materials for application in roofing, curtain wall, storefront and trim applications, as well as coping, gravel stops, gutters and downspouts. Petersen Aluminum Corporation maintains its headquarters in Elk Grove Village, Ill.

Electrol Specialties Company is a supplier of custom fabricated stainless steel equipment and controls. Established in the 1960s, the company began as a fabricator of cleaning-in-place (CIP) systems to the dairy industry. Products include tanks, spray devices, and pump suction and discharge manifolds. Electrol Specialties Company provides certified welders, material trace abilities, in-house inspection and weld maps with supporting documentation. It is listed as an Underwriters Laboratory panel builder. The company has completed projects for pharmaceutical, biotech, dairy and food processing companies, including Amgen, Bayer, DuPont, Kraft and Mayfield Dairy. Electrol Specialties Company is located in South Beloit, Ill.

Northstar Metal Products deals in precision sheet metal fabrication services. The products offered by the company include card cages, chassis, electro mechanical assemblies, enclosures, weldments, brackets, covers and display mounts. The company s solutions include a range of in-house production capabilities for sheet metal fabrication. The services offered by the company include powder coating, laser cutting, forming, punching, machining, welding, shielding, drilling, milling, tapping, lathe turning, silk screening and assembly. In addition it offers tubular components and machine parts. The company has a trained staff of engineering professionals. The company also offers process inspection and product development services. Northstar Metal Products is located in Glendale Heights, Ill.