ANDERSON PLUMBING & HEATING LTD.
AQUARIUS MECHANICAL SERVICES LTD.
BC COMFORT AIR CONDITIONING LTD.
BRANTO PLUMBING & HEATING
BRYMAC MECHANICAL LTD.
C.B. HODGSON PLUMBING & MECHANICAL
CANADIAN INDUSTRIAL MILL SERVICES LTD.
CARIBOO CHILCOTIN DIVERS LTD.
CENTURY PLUMBING & HEATING
COLUMBIA HYDRO CONSTRUCTORS LTD.
CRANBERRY CONSTRUCTION SERVICES
DANYLCHUK BROTHERS CONSTRUCTION LTD.
DMS INDUSTRIAL CONSTRUCTORS INC
EQUITY PLUMBING & HEATING LTD.
FLUOR CONSTRUCTORS CANADA LTD.
H.S. CROMBIE LTD.
HALLGREN CONSTRUCTION COMPANY LIMITED
KEITH PLUMBING & HEATING COMPANY LTD.
MELLOY INDUSTRIAL SERVICES INC.
MIDWEST MECHANICAL LTD.
PINE MECHANICAL LTD.
PIPING INDUSTRY APPRENTICESHIP BOARD
PML PROFESSIONAL MECHANICAL LTD.
PRIMO MECHANICAL LTD.
SIEMENS BUILDING TECHNOLOGIES LTD.
STELCON INDUSTRIAL SERVICES LTD.
STEVENS PLUMBING & HEATING LTD.
STREAMLINE MECHANICAL (1981 LTD.)
TEMPLETON MECHANICAL LTD.
TROTTER & MORTON BLDG TECHNOLOGIES INC.
TROY LIFE AND FIRE SAFETY LTD.
ULTIMATE MANAGEMENT SERVICES INC.
VANCOUVER SHIPYARDS COMPANY LTD.
WEST CENTRAL FIRE PROTECTION LTD.
WEST KOOTENAY MECHANICAL 2001 LTD.