Mine Environment Neutral Drainage (MEND 2000)
Mining and Mineral Sciences Laboratories
http://www.nrcan.gc.ca/mms/canmet-mtb/mmsl-lmsm/mend/default_e.htm

Caroflow Unlimited roof, floor and linear drainage
Caroflow Limited offer a full range of Roof and Floor Drainage Products. The Roof & Floor Drainage ranges cater for various scenarios requiring the application of Roof & Floor Drainage Products.
http://www.caro.co.uk/index.php?section=Caro%20Flow

Prinsco, Inc.
Prinsco is a leading manufacturer of polyethylene drainage pipe. Our gold stripe is your guarantee of quality.
http://www.prinsco.com/

Agricultural Drainage Management Coalition - ADMC
Agricultural drainage improvements. Conservation innovation grant.
http://www.admcoalition.com/

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/

Hepworth Drainage
Wavin, UK’s leading supplier of Hepworth Clay and plastic drainage systems, Hep2O flexible push-fit plumbing, as well as soil, waste and rainwater systems.
http://www.hepworthdrainage.co.uk/

Rib Loc Australia Pty Ltd
The Rib Loc homepage. With our global strategic alliances we develop, manufacture, market and install innovative new pipe and pipe rehabilitation solutions.
http://www.ribloc.com.au/

Springfield Plastics
Springfield Plastics, manufacturer of quality hdpe pipe, has drainage products for agricultural, residential, building, commercial and highway markets
http://www.spipipe.com/

Web Tec, Inc
Information on ground stabilization, drainage protection, erosion control, sediment control, and storm water management
http://www.webtecgeos.com/

Drainage Specialties Inc
Manufacturer and distributor of products and equipment for water drainage systems, including gaskets, and aluminum and steel flanges for corrugated culvert and other metal pipe.
http://www.drainagespecialties.com/