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

Roof Products, Inc.
Manufacture prefabricated roof curbs and other roof accessories. Products include expansion joints, equipment supports, adapters, and ice deflectors.
http://www.rpicurbs.com/

Roof Genius
Roof calculator, calculates a detail list of roof materials, and a complete estimate. Two ways to determine roof pitch. Offers tips and how to's on roofing. [Windows 95/98/2000/Me/XP/NT]
http://roofgenius.com/

Ideal Drain Tile Ltd.
your description goes here
http://www.idealpipe.ca/

Berger Bros
Snow guards by Berger Bros Co. offer the most complete line of one piece snow guard products in the industry today. Thousands of proven snow guard applications on all types of roofs have stood the test of time. Berger Bros Co. Snowbrakes Snow Guards are the answer.
http://snowbrakes.com/

Decra Roof Systems:
Roof coverings using lightweight roof tiles for all roofs down to a ten degree pitch. UK.
http://www.decra.co.uk/

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

Safari Trailers
Safaritrailers USA, the ULTIMATE offroad camping experience. This is something any civilized outdoorsman can't live without.
http://www.safaritrailers.com/

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

Advanced Coatings Inc.
Manufacturer and supplier of spray-applied membranes for foundation waterproofing and drainage systems. Also supply spray insulation and roof coatings.
http://www.advancedcoatings.on.ca/