COR® CERTIFIED COMPANIES AECOM ARCON ARCTIC CANADIAN DIAMOND COMPANY ARCTIC STORAGE & RENTALS AURORA GEOSCIENCES BASSETT PETROLEUM BBE CANADIAN DEWATERING CAPITAL TRANSIT MIX CENTRAL MECHANICAL SYSTEMS CLARK BUILDERS DT ELECTRIC GOLDER ASSOCIATES LTD. HRN CONTRACTING LTD. KASTEEL CONSTRUCTION & COATINGS KBL ENVIRONMENTAL LSI TRANSPORT LTD. MATRIX AVIATION SOLUTIONS NAHANNI CONSTRUCTION LTD. NORTHWESTEL NUNA LOGISTICS NWT CONSTRUCTION NTPC OLLERHEAD & ASSOCIATES PAUL BROS NEXTREME PILITAK ENTERPRISES PROFORM CONCRETE SERVICES QILLIQ ENERGY CORPORATION ROWES CONSTRUCTION RTL/WESTCAN BULK RYFAN SANAQATIIT CONSTRUCTION SCARLET SECURITY SLADES FIRE PROTECTION SLR CONSULTING STANTEC CONSULTING LTD. SUB-ARTIC GEOMATICS LTD. TAYLOR AND COMPANY TETRA TECH CANADA TLICHO CONSTRUCTION TLICHO ENGINEERING/ENVIRONMENTAL TLICHO INVESTMENT CORPORATION TLICHO LANDTRAN TLICHO LOGISTICS TLICHO ROAD CONSTRUCTORS TWILITE SECURITY UNICO CONTRACTORS WILLIAMS ENGINEERING WSCC YELLOWKNIFE HOUSING AUTHORITY