Star Pipe Products
Star Pipe Products; a manufacture of ductile iron fittings, joint restraints, construction and municipal castings, AWWA grooved products, soil pipe and related products.
http://www.starpipeproducts.com

Can Clay Corporation
Can Clay is a manufacturer of vitrified clay pipe for sanitary sewer, storm sewers installed using open trench, microtunneling, pipe bursting. Also fireplace throats, flue lining, chimney tops, filter block, wine racks, ISO 9002 certified quality system,
http://www.canclay.com/

Quality Pipe Products, Inc
Manufacturer of pipe nipples since 1977. carbon steel, stainless steel, brass & chrome plated, pipe fittings, ball valves.
http://www.qualitypipeproducts.com

Rinker Materials Corporation.
Rinker Group
http://www.rinkermaterials.com/ProdsServices/ConcretePipe/default.shtml

Alabama Pipe and Supply
Distributor of pipe products made of corrugated steel, corrugated HDPE and PVC. Also distribute accessory products used in underground construction. US South Central.
http://www.alabamapipeandsupply.com

Perma-Pipe, Inc.
Manufactures pre-insulated pipe and double containment pipe for the oil and gas industry. Also offer leak detection and location, heat traced cathodic protection systems and pipe inspection services.
http://www.permapipe.com/

No-Dig-Pipe, Microtunneling Clay Pipe
No-Dig, A Division of MCP Industries Inc is the manufacturer of the first rigid bodied, clay pipe for use in microtunneling, sliplining, pipe bursting and in casings in the United States. Our first installation was in Houston Texas in April 1992. Since that time, over 70,000 linear feet of NO-DIG pipe have been installed.
http://www.no-dig-pipe.com/

American Concrete Pipe Association
A nonprofit organization, composed primarily of concrete pipe manufacturers in the U.S. and Canada. ACPA provides members with research, technical and marketing support to promote the use of concrete pipe products for drainage and pollution control applications. Includes membership roster.
http://www.concrete-pipe.org/

Advanced Drainage Systems [ADS]
ADS Advanced Drainage Systems is the world's largest manufacturer of polyethylene corrugated HDPE pipe products.
http://www.ads-pipe.com/

Clow Water Systems Pipe and Fittings
Clow Water Systems Company has been one of the United States premiere manufacturers of iron pipe and fittings in the waterworks industry.
http://www.clowwatersystems.com