Accutech Engineering Inc.
AECOM
Almitra Consulting Inc.
AMEC Earth & Environment
Boge & Boge (1980) Ltd.
CH2M Hill
Crosier Kilgour & Partners Ltd.
D.E.M. Allen & Associates Inc.
Darren B. Towells Inc.
Dillon Consulting Limited
Dyregrov Robinson Inc.
ENG-TECH Consulting Limited
GENIVAR
Golder Associates Ltd.
Hatch
J.R. Cousin Consultants Ltd.
KGS Group
MCW/AGE Consulting Professional Engineers
MMM Group Limited
Morrison Hershfield
Morrison Hershfield Limited
Neegan Burnside Ltd.
SMS Engineering Ltd.
SNC-Lavalin Inc.
Stantec Consulting Ltd.
TBT Engineering Limited
Teshmont Consultants LP
Tetra Tech
TetrES Consultants Inc. (now Stantec)
Tower Engineering Group Inc.
TREK Geotechnical Inc.
Williams Engineering Canada Inc.
Zandstra Farag Consultants Ltd.