- Air Diffusion Council (ADC)
 - Trade association for flexible duct manufacturers and suppliers in North America. - Airmax International Ventilation Systems
- Manufactures polyolefin ducting for balancing air distribution in warehouses and factories.
- ATS Products, Inc.
- Providing filament wound, fire, and corrosion resistant fibreglass reinforced plastic (FRP) duct systems.
- DuctMate Industries, Inc.
- Duct connections, access doors, duct hangers, reinforcement angles, turning vanes, rails and duct sealants.
- DuctSox
- Offers fabric air dispersion products as an alternative to metal ductwork in open ceiling architecture applications.
- Dutch Environmental Corporation
- Flexible ducts in aluminium, co-polymer, stainless and galvanized steel.
- In-O-Vate Technologies
- Manufacturers of the recessed dryer vent box.
- K&B Duct
- Fabricator of clamp together duct and parts for industrial ventilation, fume, oil mist, and dust collection. Also manufactures made-to-order ductwork.
- MaticAir Supply & Mfg. Ltd.
- Specialises in manufacturing heating and ventilation ducting equipment.
- McCorvey Sheet Metal Works, LP
- Detailers, fabricators, manufacturers, distributors, and installers of commercial HVAC duct as well as specialised heavy industrial fabrication.]
- Ovalformer, LLC
- Patent pending solution to creating flat oval-shaped ductwork for the HVAC industry.
- Perry Fiberglass Products
- Manufacturer of fibreglass reinforced plastic duct systems for corrosive environments.
- Polyaire Pty Limited
- Manufactures ducted air conditioning component.
- Quietflex Manufacturing
- Manufactures and sells flexible air ducts and accessories to HVAC wholesalers.
- Superior Air Handling Corporation
- Designing and manufacturing commercial industrial HVAC and sheet metal installations.
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