Poland Metal Products, Inc. Manufacturer of toll booths, lane gates and speciality metal fabrications. http://www.polandmetalproducts.com

Columbia Equipment Co. Prefabricated aluminum transit, advertising and smoking shelters as well as kiosks, canopies, equipment shelters and street furniture. http://www.columbiaequipment.com/

Van Raalte & Co. LLC Distribute canopies, shelters and shade structures . Product photographs and specifications and trade show guide . http://www.shade2u.com/

Stillman Northern Manufacturers of fibre glass modular shelters. http://www.stillmannorthern.com/

SheltersDirect Manufacturers of aluminum and steel prefabricated structures. Smoking shelters, transportation shelters, and guard booths. http://www.sheltersdirect.com/

Innovative Shelter Design Designs and builds aluminum walkway covers, canopies and shelters for education, government, and health facilities. http://www.inv-sd.com/

Central Denver Ironworks, Inc. Custom made fabricators of metal and steel shelters, structures, ornamental, bridges and sculptures. http://www.cdironworks.com

Terra-Dome Corporation Design and construct earth-sheltered buildings . Includes a selection of online plans. http://www.terra-dome.com/

Intra-Space Specialists Inc. Offer a range of instant and portable shelters, storage sheds, car covers, and carports. Includes a photographic catalog and buying facility . http://shelterworld.com/

Perfection Architectural Systems Inc. Manufacture and installation of pre-engineered aluminum walkway covers, suspended aluminum canopies and related products. Includes a listing of representatives, product specifications and completed projects . http://www.perfectionarch.com/

Amac Metal Fabrication Fabricate a range of products including trade show booths, restaurant accessories, furniture and race car parts. http://www.amacfab.com/

B.I.G. Enterprises Inc. Supply pre-assembled cashier booths, portable buildings, bus shelters and toll booths. Design options, building specifications and product photo gallery. http://www.bigbooth.com/

Ekto Manufacturing Corporation Manufactures stationary and mobile equipment shelters. Includes profile, product description, and applications. http://www.ekto.com/

Ice Age Specializing in rink design and construction assistance. Includes construction and equipment cost estimates and feasibility studies. http://www.iceageinfo.com