Tri State Utilities
Based in Virginia, specializing in trenchless technology. Services include, cleaning pipe, video inspection, testing and sealing, manhole rehabilitation, sliplining, pipe bursting and trenchless lining.
http://tsupiperehab.com/

Cherne Industries
Manufactures and sells pipe plugging and testing equipment, pipe lubricant, primers, and cements .
http://www.cherneind.com/

TT Technologies Job Stories
Trenchless technology with pneumatic boring tools. Applications include pipe pulling, pipe ramming, pipe bursting, shiplining and directional boring.
http://www.tttechnologies.com/jstories/index.html

Unicor Extrusion Technology
UNICOR - the corrugator experts - manufacture innovative machinery for the production of corrugated plastic pipe from 3 mm up to 2.400 mm diameter.
http://www.unicor.com

Stemar Equipment & Supply Co., Inc.
Stemar, Inc. has the largest inventory of low and high pressure pipe plugs and accessores anywhere in the USA. From 1 in. to 10 ft. Stemar, Inc. has the solution.
http://www.stemarinc.com/

NSTL, Inc.
Large independent information technology testing organization. Provides hardware, software, e-commerce, internet and custom testing, government services, Multimedia Testing and Telecommunications Testing.
http://www.nstl.com/

Tracto-Technik
Die TRACTO-TECHNIK ist ein hochinnovatives Familienunternehmen mit Sitz in Lennestadt-Saalhausen. Das Unternehmen ist Spezialist für unterirdische Rohrverlege- und Rohrumformtechnologien und erlebt seinen Aufschwung durch herausragende Produkte mit hohem Benefit und exzellentem Service.
http://www.tracto-technik.de/

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

Oilfield Equipment Marketing, Inc.
Supply the oil field pipe inspection industry with a range of nondestructive testing products . Includes ultrasonic testing limitations and other relevant technical paperss.
http://www.oeminc.org/

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/