Alesa Alusuisse Engineering Ltd.
AMEC 
ArcelorMittal  
ASH Grove Cement Co
Bombardier
Borton Contractors & Engineers
Canadair
Canada Cement Lafarge Ltd.
Canadian Coast Guard
CEMCO
Citadel Cement Co.
Commonwealth Dynamics
Colacem SpA 
Doef's Ironworks
Donohue St-Felicien Pulp Kraft Mill
Domtec International
Duometal Inc. 
Lafarge Gypsum
Lafarge North America 

Energie Thermique, Matane
KOCH Industries
KSH
Lehigh Cement Co.
Mineraux Noranda Inc. Division CCR
F.L. Smith
FWS Construction 
Fuller Company
Heilderberg Cement
J.S.C. Technical Design
Kruger Inc.
Les consultants du Forum du Canada
Malette & Northland
MESSIER-DOWTY Inc. St. Jean Vier
Mineraux Noranda Inc. Division CCR
Miron
North East Cement General Portland Inc.
PCL-Maxam
Polysius

Port of Montreal
Power On
ROCHE
Robert Mitchell Inc.
St-Michel Steel, Simons
Shell Canada Ltd.
Sidbec-Dosco
Simons
SNC Lavalin
Solios (before: Procedair)
St Marys Cement 
Systech Corporation
Tarmac
Termont
TPR Inc.
Viking Inc.
Warnock Hersey Inc.