This industry comprises establishments primarily engaged in the merchant wholesale distribution of specialized machinery, equipment, and related parts generally used in manufacturing, oil well, and warehousing activities.

• Fluid power transmission equipment merchant wholesalers
• Metalworking machinery and equipment merchant wholesalers
• Food-processing machinery and equipment merchant wholesalers
• Oil well machinery and equipment merchant wholesalers
• Materials handling machinery and equipment merchant wholesalers

• Bakery machinery and equipment merchant wholesalers
• Beverage bottling machinery merchant wholesalers
• Blowers, industrial, merchant wholesalers
• Bottling machinery and equipment merchant wholesalers
• Cement-making machinery merchant wholesalers
• Chainsaws merchant wholesalers
• Chemical industries machinery and equipment merchant wholesalers
• Commercial fishing equipment and supplies (except boats, ships)
• Compressors (except air-conditioning, refrigeration) merchant wholesalers
• Condensing units (except air-conditioning, refrigeration) merchant wholesalers
• Conveying equipment (except farm) merchant wholesalers
• Cranes, industrial, merchant wholesalers
• Distillery machinery merchant wholesalers
• Elevators merchant wholesalers
• Engines, internal combustion (except aircraft, automotive), merchant wholesalers
• Engraving machinery merchant wholesalers
• Escalators merchant wholesalers
• Fans, industrial, merchant wholesalers
• Fluid-power transmission equipment merchant wholesalers
• Food-processing machinery and equipment merchant wholesalers
• Forklift trucks (except log) merchant wholesalers
• Foundry machinery and equipment merchant wholesalers
• Furnaces, industrial process, merchant wholesalers
• General-purpose industrial machinery and equipment merchant wholesalers
• Handtools, machinists' precision, merchant wholesalers
• Hoists (except automotive) merchant wholesalers
• Hydraulic power transmission equipment merchant wholesalers
• Hydraulic pumps and parts merchant wholesalers
• Industrial machinery and equipment (except electrical) merchant wholesalers
• Industrial trucks, tractors, or trailers merchant wholesalers
• Instruments (except electrical) (e.g., controlling, indicating, recording) merchant wholesalers
• Internal combustion engines (except aircraft, nondiesel automotive, nondiesel truck) merchant wholesalers
• Kilns, industrial, merchant wholesalers
• Ladders merchant wholesalers
• Lift trucks, industrial, merchant wholesalers
• Machine tools and accessories merchant wholesalers
• Machinists' precision measuring tools merchant wholesalers
• Materials handling machinery and equipment merchant wholesalers
• Measuring and testing equipment (except automotive) merchant wholesalers
• Metalworking machinery and equipment merchant wholesalers
• Meters (except electrical, parking) merchant wholesalers
• Mining machinery and equipment, petroleum, merchant wholesalers
• Oil well machinery and equipment merchant wholesalers
• Oil well supply houses merchant wholesalers
• Ovens, industrial, merchant wholesalers
• Packing machinery and equipment merchant wholesalers
• Pallets and skids merchant wholesalers
• Paper and pulp industries manufacturing machinery merchant wholesalers
• Patterns (except shoe), industrial, merchant wholesalers
• Pipeline machinery and equipment merchant wholesalers
• Pistons, hydraulic and pneumatic, merchant wholesalers
• Plastics industries machinery, equipment, and supplies merchant wholesalers
• Pneumatic pumps and parts merchant wholesalers
• Pollution control equipment (except air) merchant wholesalers
• Printing trade machinery, equipment, and supplies merchant wholesalers
• Pumps and pumping equipment, industrial-type, merchant wholesalers
• Refinery machinery and equipment merchant wholesalers
• Sawmill machinery, equipment, and supplies merchant wholesalers
• Sewing machines, industrial, merchant wholesalers
• Shoe manufacturing and repairing machinery merchant wholesalers
• Smelting machinery and equipment merchant wholesalers
• Special purpose industrial machinery and equipment merchant wholesalers
• Spray painting equipment, industrial-type, merchant wholesalers
• Stackers, industrial, merchant wholesalers
• Testing and measuring equipment, electrical (except automotive), merchant wholesalers
• Textile machinery and equipment merchant wholesalers
• Tire recapping machinery merchant wholesalers
• Tools, machinists' precision, merchant wholesalers
• Tractors, industrial, merchant wholesalers
• Trailers, industrial, merchant wholesalers
• Trucks, industrial, merchant wholesalers
• Turbines (except transportation) merchant wholesalers
• Twist drills merchant wholesalers
• Valves, hydraulic and pneumatic, merchant wholesalers
• Water treatment equipment, industrial, merchant wholesalers
• Welding machinery and equipment merchant wholesalers
• Winches merchant wholesalers
• Woodworking machinery merchant wholesalers