- A & B Metalmecanica
 - Manufacturing rolling doors. - Alsta Export
- Manufacturer of insulated and framed overhead doors and fastfolding doors. Distributing across Europe.
- Ambico Limited
- Manufacturer of steel doors and frames for niche markets, including acoustic, bullet and blast resistant, stainless, lead-lined, and brass.
- ANSA Doors
- Manufactures commercial and industrial shutters and doors. Offers steel, polycarbonate, aluminium, grille, and roller shutters, fold-up and speciality high speed doors.
- ASI Technologies
- Manufacturers of industrial, cold storage, and cleanroom door systems.
- BA2i
- Manufactures industrial folding and rolling doors designed to withstand high winds, corrosive environments, and heavy traffic. Also offers modular curtains.
- Bauco Products Incorporated
- Offers architectural access panels for drywall.
- Boon Edam, Inc.
- Manufacturer of manual, automatic, and security revolving doors.
- C&M Associates
- Supplier of PVC Strip material and flexible strip doors specialising in the food service and refrigerated/frozen warehouse industries.
- Chem-Pruf Door Co.
- Manufacturers of custom built corrosion resistant fibreglass doors, frames, louvers and windows.
- City Gates, Inc.
- Manufacturing, servicing and installing steel rolling doors, coiling grilles and all kinds of iron work.
- Clopay Garage Doors
- Offers residential garage doors for home owners, contractors, and architects, as well as tips on how to select the right door for your home or business and a dealer locator.
- Door Masters
- Manufactures the Sunshine Door polycarbonate panel door that allows sun into workshops.
- Dur-Red Products
- Designs and manufactures pit, sidewalk and floor doors, roof and smoke hatches, and skylights.
- Edey Cold Storage Doors
- Manufactures cold storage doors for commercial and industrial facilities.
- General American Door Company
- Manufactures commercial and residential sectional overhead garage doors.
- Gortite Doors
- Manufacturer of roll up doors, steel roll up doors, compartment doors, and hose bed covers for emergency vehicles.
- International Entrance Control
- Manufactures a complete line of revolving doors for all applications, including security revolving doors, automatic revolving doors, and manual revolving doors.
- Karpen Steel Custom Doors & Frames
- Manufacturing custom hollow metal doors and frames
 Meesons
- Suppliers and installers of physical security, anti-tailgating systems, security screens, access control, and automatic door products throughout the UK.- Norco Manufacturing Corporation
- Custom-designed sliding door systems for both new or existing hangars.
- Nystrom Products Company
- Direct selling manufacturer of access panels, floor hatches, roof hatches and louvers.
- Padilla Fire Doors
- In English and Spanish.
- Para-Port Doors
- Manufactures roll-up fabric doors for airport hangers and other commercial and industrial applications.
- PC Henderson
- Producing garage doors and commercial, domestic, and industrial sliding and folding door hardware.
- Protective Structures Ltd.
- Supplier of bullet resistant windows, blast resistant windows, security doors, fibreglass panels, and tornado storm doors.
- Raynor Garage Doors
- Manufactures residential and commercial garage doors.
- Rite-Hite Corporation
- Manufactures Frommelt loading dock door seals, shelters, and dock covers, as well as other loading dock equipment safety items.
- Rol-Trac Ltd
- Designers and manufacturers of specialised automatic doors.
- Roll Up Doors Direct
- Offers roll up doors at factory direct pricing. Roll Up Doors Direct carries self storage, commercial, and industrial doors.
- Rytec Corporation
- Manufacturer of high-speed doors such as rapid, rolling, freezer, traffic, folding and other industrial doors.
- SAFTI
- Manufactures clear fire-rated glass and framing products for the design and building community that protect against fire, sound transmission, attack, and human impact.
- Salco Bedrijfsdeuren
- Specialising in sliding and overhead gas-tight doors and windows for refrigeration and other uses.
- SKB Shutters Manufacturing Sdn Bhd
- Roller shutters, windows shutters and see thru shutters.
- Specialty Doors + Automation
- Provides a full line of portable partitions, garage door openers, awnings, and commercial doors.
- Steel-Craft Door Products Ltd
- Manufacturers and distributors of a complete line of overhead garage doors and electric openers for the residential, commercial and industrial markets.
- Thomas Door Controls, Inc.
- Thomas Door Controls repairs and installs overhead, manual, and automatic doors.
- TMI, Inc.
- Manufacturers of strip and air doors, enclosures and partitions, plus distributor of pvc strip and film materials.
- TracRite Door, Inc.
- Manufacturer of lightweight rolling curtain doors, insulated doors, fire doors, and counter shutters.
- Trussbilt, Inc.
- Hollow metal security doors, frames, wall panels and windows.
- Williams Brothers Corporation
- Defining quality one access door at a time. Manufacturer of access doors, access panels, roof hatches, and basement doors.
- Won-Door Corporation
- Manufacturer of fire- and sound-rated folding partitions.
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