Ryerson
- Distributes and processes metals. Offers information on products, services and stock list, investor relations, locations, and careers. (NYSE: RT)
- http://www.ryerson.com/

Chicago Dowel Co., Inc.
- Manufacturer of wooden dowel pins and related wood products, supplying industries such as cabinet and casegoods, furniture, door and millwork.
- http://www.chicagodowel.com/

Alto Manufacturing Company
- Produces custom and standard rollformed and stamped metal products.
- http://www.altomfgco.com/

Chicago Dryer Company
- Designs and fabricates flatwork finishing systems, commercial laundry equipment, and textile finishing systems. An overview of services and products, technology innovations, company history, and videos are provided.
- http://www.chidry.com/

SimplyCAD
- Design and graphics company servicing architects, engineering firms, manufacturers, government agencies, and designers.
- http://www.simplycad.com/

Amsted Industries Inc.
- Designs, manufactures and markets products for railroad, construction and building industry. Company profile, contact information, financials and markets.
- http://www.amsted.com/

Aluminum Case Company
- Produces stock and custom made aluminum cases.
- http://www.aluminumcase.thomasregister.com

Superior Graphite Co.
- Specializes in high temperature technologies, including graphite and carbon materials. Information on products, markets and value-added services are provided. Features Spanish, German, and Japanese language options.
- http://www.superiorgraphite.com/

Tempel Steel Company
- Providing magnetic steel lamination, electrical motor, transformer, automotive, and notching. Product catalog, corporate division information and locations provided.
- http://www.tempel.com

Oil-Dri Corp. of America
- Develops, manufactures and markets products for consumer, industrial and automotive, agricultural, sports fields and fluids purification markets. Investor relations, careers and product details. (NYSE:ODC)
- http://www.oildri.com/

Jernberg Industries Inc.
- Makers of ferrous forgings and machined products, primarily for the auto industry. Information on products, company history, employment opportunities and contacts.
- http://www.jernberg.com/

Chicago Manufacturing Center
- A public/private company that works with manufacturers to improve productivity, expand markets and retain high-wage, high-skill jobs. Information on consulting services and products, employment, seminars and workshops, and contacts.
- http://cmcusa.org/

A. Finkl & Sons Co.
- Supplier of forged die steels, plastic mold steels, die casting tool steels, and custom open-die molds. Information on products, services, careers and contacts. Features a virtual tour of facility.
- http://www.finkl.com/

Reliable Galvanizing
- Hot dip galvanizer. Features overview of capabilities and services.
- http://www.reliablegalvanizing.com/

Central Steel & Wire Company
- Corporate headquarters. A full-line ferrous and nonferrous metal distribution service center. Information on facility locations, request form, product and services, and careers.
- http://www.centralsteel.com/

Sipi Metals Corporation
- Makers of brass and bronze alloys, master alloys and a refiner of precious metal scrap. Information and technical data on alloys, refining, laboratory, and contacts.
- http://www.sipimetals.com/

Adon Metals, Inc
- Distributor of cold rolled, galvannealed, galvanized stainless, sheets, coils and blanks.
- http://www.adonmetals.com/

Chicago Aluminum Castings Company
- An aluminum sand casting specialist since 1910. Offers furnished castings for machine tools, scientific products, conveyor equipment, railroads, food processing equipment, pumps, and decorative items.
- http://www.chicagoaluminum.com/