Husky - Floor machines
Montreal-based manufacturer of floor polishers, industrial vacuums, steam extractors, central vacuums, sweepers, scrubbers, and dryers.
http://www.huskyces.com/

Tornado Industries, Inc.
Manufacturer of vacuums, floor scrubbers, burnishers, propane floor cleaners, sweepers, pressure washers, tank vacuums, carpet care equipment, industrial tank vacuums. Global alliance with Alfred Karcher GmbH.
http://www.tornadovac.com

Bug Vacuums for Organic Crop Protection
Field vacuuming is a novel concept for pest management in organic cropping systems. Though heavily promoted, it has not been widely adopted. This publication provides an overview of the history and applicability of insect vacuum technology.
http://attra.ncat.org/attra-pub/bugvacuums.html

Cadillac Vacuum
Offers information about vacuums including uprights, canisters, and central systems as well as air cleaners, furnace filters and allergy bedding.
http://www.cadillacvacuum.com

Air King, Ltd.
Your source for Bathroom Exhaust Fans, Range Hoods, Central Vacuums, Air Circulators, Humidifiers and many other ventilation and building products.
http://www.airkinglimited.com/

Royal Vacuums
Detailed information on Royal brand vacuums and carpet shampooers.
http://www.royalvacuums.com

Pro-Team Backpack Vacuums
Manufacturer of backpack vacuums for commercial and residential cleaning
http://www.pro-team.com

Industrial Air Solutions, Inc.
Offering dust collectors, industrial vacuum cleaners including portable and central vacuums, and mist collection systems.And HEPA air cleaners for contamination control.
http://www.industrialairsolutions.com/

IAS Industrial Vacuums
Manufacturer of industrial vacuum cleaners including portable and central vacuum systems from 3 to 300 HP, hoses, attachments, and accessories.
http://www.industrial-vacuum-cleaner.com

Ryvac Engineering Company
Dust Collection, Industrial Air Cleaning Equipment and Collector Systems
http://www.ryvac.com