- Goodway Technologies Corporation
 - Manufactures tube cleaning systems, vacuums and hi-pressure washers for industrial, commercial and institutional applications. - Nordfab Systems, Inc.
- Manufactures dust collection and air filtration products, including the Quik-Fit clamp-together duct system.
 Ultrafilter International
- Filters and dryers for compressed air, gas and fluid separations.- National Filter Media Corp.
- Air pollution control and liquid filtration products.
- MJC Inc
- Engineered modifications for HVAC equipment and corrosion prevention with protective coatings.
- Galaxy Machinery
- Products include air dryers and filters.
- Thomas C. Wilson
- Thomas C. Wilson manufactures tube cleaning equipment, supplying the boiler, condenser, and heat exchanger industries.
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