Geze
- Non-standard solutions for sliding automatic, turning automatic and safety systems in the preventing fire protection. [German/English]
- http://www.geze.de/

Zippy Grid
- Makers of a field applied grid system of extruded aluminum. Overview of design and features, photo gallery of storefronts, and contact details. Offices based in Salt Lake City, Utah.
- http://www.zippygrid.com/

Colonial Mirror and Glass Corp
- Manufacturers and distributors of all types of flat glass products.
- http://www.colonialglass.com/

American Products
- Supplier of aluminum storefront extrusions.
- http://www.americanprod.com/

Atlantic Door and Hardware
- Supply and install hollow metal fire rated and non-rated doors.
- http://www.metaldoors.com/

Smith Mountain, Inc.
- Hurricane resistant glass products.
- http://impactglass.com

Jia Yuan Automatic Door Co.,Ltd
- Taiwan based door supplier.
- http://www.dortex.com.tw

Cornell Storefront Systems
- Security closures for retail, commercial, and industrial buildings.
- http://www.cornellstorefronts.com/

United States Aluminum
- Aluminum storefronts, window frames and doors.
- http://www.usalum.com/

KM Automated Entrance Systems
- Automatic sliding entrances.
- http://www.kmsystemsinc.com/

Nabco Entrances, Inc.
- Sliding and swinging doors.
- http://www.nabcoentrances.com/

Duratherm Window Corporation
- Distinctive entrance or dramatic building facades.
- http://www.durathermwindow.com/

Arch Aluminum and Glass Co., Inc.
- Product line consists of aluminum doors, entrances and storefronts.
- http://www.arch.amarlite.com/

Carmel Steel Products
- Metal doors and frames entrance systems.
- http://www.carmelsteelproducts.com/

Dynaflair Corporation
- Manufactures custom made side sliding and overhead rolling security closures.
- http://www.dynaflair.com/

Baut Studios, Inc.
- Architectural aluminum window sash and aluminum doors.
- http://www.baut.com/

EFCO
- A selection of commercial aluminum framing systems.
- http://www.efcocorp.com/

Tubelite, Inc.
- Storefront, entrance, and curtainwall products.
- http://www.tubeliteinc.com/