HVAC (Heating, Ventilation and Air-conditioning)	Security & Life Safety
Southampton Trane - Chillers Siemens Building Technologies, Ltd. B.G.E Service & Supply Ltd. Gasonic Instruments Inc. Arpi’s Industries Ltd. Fire – Rite Mechanical Spectra Fan Services Ltd. GE Betz	Stanley Canada Corporation Edwards Sprouse Fire & Safety Zee Medical Services Co. Constant Fire Protection Systems Ltd.
Maintenance	Construction
Servpro Wasteless Environmental Services Inc. Stanley Security PCO Services Keaco Services Evergreen Sign Effect Atlas Glass Ltd. Otis Metro Waste	Stebnicki & Partners Sizeland Evans Interior Design Inc. TMP Engineering Read Jones Christopherson Cougar Contractors Ltd. Western Electrical Management Ltd.
Telecommunications
Allstream Inc. Bell Enmax Envision	Shaw Telus