- Anavid Insulation Products
 - Manufactures closed-cell expanded rubber insulation for pipes. - Extol Fabricated Insulation Systems
- Fabricators of thermal insulation systems for pipe, fittings, valves and vessels.
- Howred Corp.
- Producing Goodtemp high temperature insulation for piping, vessels, and equipment in continuous and cyclic operation.
- HydroCowl
- Supplier of enclosures and freeze protection equipment to the waterworks, irrigation, fire sprinkler, plumbing, and industrial PVF markets.
- IceLoc, Inc.
- Offers a pipe protection product that prevents rupture.
- Smock & Schonthaler Industrial Insulation
- High temperature pipe and blanket insulation for industry and construction.
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