2022-2024

WESTERN MECHANICAL (Barrie)

2018-2022

S&R MECHANICAL (Ottawa)

2007-20010

ENERGY CONTROLS (Kichener)

2005-2007

ADELT MECHANICAL (Toronto)

2003-2005

COMSTOCK CANADA LTD. (Hamilton)

2001-2003

RF CONTRACTING (S.S. Marie)

1998-2001

SAYERS & ASSOCIATES (Toronto)

1996-1998

MARCOTTE MECHANICAL (Hamilton)

1994-1996

W.A. STEPHENSON MECH. CONTRS. LTD (Toronto)

1992-1994

TESC CONTRACTING (Sudbury)

1990-1992

ROBERT D. STEWART MERCH. CONTR. (Hamilton)

1988-1990

HALLER MECHANICAL CONTRACTORS INC. (Windsor)

1986-1988

BRADY & SEIDNER ASSOC. (Toronto)

1989-1986

McLEOD BROS. MECHANICAL INC. (S.S. Marie)

1882-1984

WATKINGS & CHATTERSON MECH. CONTRS. (Kitchener)

1980-1982

GEORGE HAMERS LTD. (12 West)

1979-1980

BURTON PLG. & HTG. (Thunder Bay)

1978-1979

ALDERSHOT INDUSTRIAL LTD. (Hamilton)

1977-1978

R.R. SEQUIN & SONS (Ottawa)

1973-1976

M. EMSIG  & SON LTD. (Toronto)

1972-1973

SUTHERLAND & SCHULTZ LTD. (Kitchener)

1970-1972

K.A.E. INVESTMENTS LTD. (Sudbury)

1970-1972

BENNETT & WRIGHT (Kitchener)

1969-1970

ENGLISH & MOULD (Toronto)

1968-1969

CANADIAN COMSTOCK CO. LTD. (Ottawa)

1966-1968

SAYERS & ASSOCIATES (Toronto)