| American Machine Tool Distributors Association |
| American Society for Quality |
| American Supply Association |
| American Traffic Safety Services Association,Inc. |
| American Veterinary Distributors Association |
| American Wholesale Marketers Association |
| Appliance Parts Distributors Association,Inc. |
| Associated Equipment Distributors |
| Association for High Technology Distributors |
| Association for Suppliers of Printing & Publishing Technologies |
| Association of Electrical Manufacturers |
| Association of Steel Distributors |
| Automotive Service Industry Association |
| Automotive Wholesale Distributors Association |
| Aviation Distributors & Manufacturers Association |
| Bearing Specialists Association |
| Beauty & Barber Supply Institute, Inc. |
| Bicycle Product Suppliers Association |
| Business Products Industry Association |
| Canadian Institute of Plumbing and Heating |
| Ceramic Tile Distributors Association |
| Cleaning Equipment Trade Association |
| Computing Technology Industry Association |
| Council of Fleet Specialists |
| Document Management Industries Association |
| Door and Hardware Institute |
| Engine Service Association, Inc. |
| Farm Equipment Wholesalers Association |
| Fluid Power Distributors Association |
| Food Distributors International |
| Food Industry Suppliers Association |
| Food Marketing Institute |
| Foodservice Equipment Distributors Association |
| Gases and Welding Distributors Association |
| General Merchandise Distributors Association |
| Health Industry Distributors Association |
| Heating, Airconditioning & Refrigeration Distributors International |
| H.D. America |
| Hobby Industries of America |
| Independent Medical Distributors Association |
| Independent Sealing Distributors |
| Industrial Distributor Association |
| Industrial Supply Manufacturers Association |
| International Association of Plastics Distributors |
| International Foodservice Distributors Association |
| International Sanitary Supply Association |
| International Truck Parts Association |
| International Wholesale Furniture Association |
| Irrigation Association |
| Lawn & Garden Marketing & Distribution Association |
| Machinery Dealers National Association |
| Material Handling Equipment Distributors Association |
| Metals Service Center Institute |
| Motorcycle Industry Council |
| Music Distributors Association |
| National Appliance Parts Suppliers Association |
| National Association of Aluminum Distributors |
| National Association of Chemical Distributors |
| National Association of Container Distributors |
| National Association of Electrical Distributors |
| National Association of Electrical Distributors Technology Informer |
| National Association of Floor Covering Distributors |
| National Association of Hose and Accessories Distributors |
| National Association of Recording Merchandisers |
| National Association of Sign Supply Distributors |
| National Association of Utility Distributors |
| National Association of Wholesaler-Distributors |
| National Beer Wholesalers Association |
| National Electrical Distributors Association |
| National Electronic Distributors Association |
| National Fastener Distributors Association |
| National Fluid Power Association |
| National Grocers Association |
| National Insulation Association |
| National Marine Distributors Association |
| National Paper Trade Association, Inc. |
| National Poultry and Food Distributors Association |
| National Sash & Door Jobber Association |
| National School Supply & Equipment Association |
| National Spa and Pool Institute |
| National Truck Equipment Association |
| National Wholesale Druggists' Association |
| National Wood Flooring Association |
| North American Building Material Distributors Association |
| North American Graphic Arts Suppliers Association |
| North American Heating, Refrigeration & Airconditioning Wholesalers Association |
| North American Horticultural Supply Association |
| North American Meat Processors Association |
| North American Wholesale Lumber Association, Inc. |
| Office Products Wholesalers Association |
| Optical Laboratories Association |
| Outdoor Power Equipment Distributors Association |
| Pet Industry Distributors Association |
| Petroleum Equipment Institute |
| Petroleum Marketers Association of America |
| Power Transmission Distributors Association |
| Safety Equipment Distributors Association, Inc. |
| Security Hardware Distributors Association |
| Service Specialists Association |
| Specialty Equipment Market Association |
| Specialty Tools & Fasteners Distributors Association |
| Textile Care Allied Trades Association |
| Wallcoverings Association |
| Waste Equipment Technology Association |
| Water and Sewer Distributors of America |
| Water Systems Council |
| Western Association of Fastener Distributors |
| Wholesale Florists & Florist Suppliers |
| Wine & Spirits Wholesalers of America, Inc. |
| Woodworking Machinery Industry Association |
