U.S. Tank Company
- Manufactures steel storage tanks including frac tanks with wheels, 400 bbl tanks and vacuum trailers.
- http://www.ustankco.com/

Oreco A/S
- Systems for automated cleaning of oil storage tanks. Desludging, cleaning and hydrocarbon recovery using environmentally friendly processes.
- http://www.oreco.com/

Denali Incorporated
- Manufactures fiberglass composite underground storage tanks, steel rectangular aboveground storage tanks and engineered fiberglass reinforced composites for handling corrosive fluids. (Nasdaq: DNLI).
- http://www.denaliincorporated.com/

SuperSafe Tanks Inc.
- Manufacturers of above ground fuel storage tanks providing safe storage of petroleum products for vehicles and aircraft, fueling stations, heating oil storage, chemicals, and hazardous waste containment.
- http://www.supersafetanks.com/

Freeman Brothers
- Above ground fuel tanks for petroleum products containments.
- http://www.nvo.com/freemantanks

Ace Tank & Equipment Co.
- Manufactures and distributes petroleum storage tanks and petroleum handling equipment.
- http://www.acetank.com

Commercial Welding Co.
- Manufacturers of above ground steel storage tanks.
- http://www.commercialwelding.com

Tanco Engineering, Inc.
- Engineering, design and construction of tanks, with renovation services, installation and supplies.
- http://www.tancoeng.com/

TS Tanksystem SA
- Gauging and sampling equipment for storage tanks and marine vessels. Ball valves. Temperature gauges.
- http://www.tanksystem.com

Wilco Machine & Fab, Inc.
- Manufacturer of machined and fabricated metal products and equipment for the oil and gas service industry. Products include ASME pressure vessels, bulk storage and conveying equipment.
- http://www.wilcofab.com/

Trans-Tainer Pty Ltd.
- Transportable intermediate bulk containers of stainless and carbon steel. Operating in Australia.
- http://www.trans-tainer.com.au/