Concrete Canvas
- Engineers William Crawford and Peter Brewin have developed a building in a bag that requires only water and air for construction, intended for emergency shelters, and Concrete Cloth, a flexible mat that will harden to a concrete surface on the addition of
- http://www.concretecanvas.org.uk/

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

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/

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/

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

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

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

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

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