- Advance Steel Canada Inc.

- Alliance Steel Corporation

- Amico Canada Inc.

- Arcelor Metal Tubular Products

- Atlantic Tube & Steel Inc.

- B&T Steel

- Borden Metal Products Ltd.

- Brannon Steel

- Canam Group

- Capital Tool & Design Ltd.

- Centennial Material Handling Ltd.

- Clover Tool

- Color Steels Inc.

- Concord Steel Centre Ltd.

- Cooper's Iron & Metal

- Corridor Canada

- Couthino & Ferrostaal

- Custom Coil Slitting Inc.

- Debro Steel

- Deflecto Canada Ltd.

- Del Equipment

- Del Metals

- Dymin Steel Inc.

- Essar Steel Algoma Inc.

- Flex-N-Gate Bradford

- G&B Scrap Metal Ltd.

- G&R Metals LLC

- Gerdau

- Ideal Roofing Co. Ltd.

- Konstant, Div. of the Econo Rack Group Inc.

- Lorenco Steel

- M L Steel

- Maksteel

- Metal One Canada Corporation

- Mitsui & Co.

- Monarch Steel Company

- Nelson Steel

- Norak Steel Construction Limited

- Norbel Metal Service Limited

- Nova Steel

- Nu-Tech Rollforming Inc.

- Point Claire Steel

- Rims Transport

- Riverview Steel Co. Ltd.

- Russel Metals Inc.

- Salit Steel

- Samuel Automotive

- Samuel Plate Sales

- Samuel Son & Co. Ltd.

- SSAB Central Inc.

- Steelspider

- Taylor Steel Inc.

- Timberlea Inc.

- Trillium Metal Stampings

- Triple M Metal LP

- Tryon TSF Inc.

- Tubular Steel Inc.

- Unalloy

- Venture Steel

- Welded Tube of Canada

- Worthington Steel