- Mine Safety Appliances
 - Manufacturer of safety equipment and systems to protect users against hazardous or life-threatening situations. - Red Valve Company
- Manufacturer of pinch valves, tideflex check valves, pressure sensors and more.
- IPES International, Inc.
- Manufacturer and supplier of industrial magnets, magnetic separators, magnetic sweepers, and lifting magnets.
- Kruman Equipment Company
- Sells parts and offers service for air compressors and air dryers.
- Wheelabrator Air Pollution Control, Inc.
- Design and supply of air pollution control systems, fabric filters, precipitators, wet or dry scrubbers, and NOx control systems for industry.
- Bruce Plastics, Inc.
- Manufactures injection moulded plastic handles, feet, bumpers, suction cups, thread protectors and fasteners.
- KTA-Tator, Inc
- Industrial coatings (paint) consulting firm.
- Copperweld Corp.
- Manufacturer of structural and mechanical tubing, and a producer of bimetallic wire products.
- Bloom Engineering Company, Inc
- Manufacturers of custom engineered burners and combustion systems. Specialises in the field of industrial combustion and the thermal aspects of process furnace operations.
- Advanced Sewing Technologies Inc.
- Dealers of new and used industrial sewing machines and equipment for the textiles and garment industry.
- Instrumentation Systems, Inc.
- Technical sales representative agency that specialises in high-technology electronic instrumentation products for industrial applications.
- Bartlett Products Co., Inc.
- Distributors of a wide variety of fasteners.
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