- American Commercial
- Development, production and supply of tunneling products and systems.
- American Pipe & Plastics, Inc.
- Manufacturer of PVC conduit for the Telecommunications, Power Utility, Cable TV and Fiber Optic underground infrastructure markets.
- Citadel Technologies
- Developer and manufacturer of 100 percent epoxy and carbon composite systems for interior and exterior pipe rehabilitation.
- Cretex Specialty Products
- Manufacturer of internal and external manhole chimney seals for stopping wet weather inflow and infiltration in sanitary sewer manholes.
- EA Services
- Emergency pipe repair,specializing in hot tapping and wet hot tapping, line stops, steam leak repair, and field machining services.
- Inliner Technologies
- Offering inliner tubes made of a felt material saturated with resin and coated with a waterproof polyethylene layer.
- Insituform Technologies Inc.
- Provider of small, medium and large diameter cured-in-place pipe products for the rehab of storm sewer, sanitary, and pressure pipe systems.
- LMK Enterprises, Inc.
- Designing and producing trenchless lining systems, development of innovative and unique cured-in-place pipe products.
- Madewell Products Corporation
- Manufacturers of corrosion resistant 100% solids protective coatings and concrete restoration mortars and grouts.
- Perma-Liner Industries, Inc.
- Provides plumbers, contractors and municipalities cured-in-place-pipe systems in north america aimed specifically at the municipal, residential, commercial market.
- Strata-Tech
- Manufactures chemical grouts for use in sewer rehabilitation, structural water control, and soil stabilization.
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