- Accident Contract Centres
- Ace Personnel
- Bell Canada
- City of Pickering
- Challenger/Hiltz Trucking
- City of Oshawa
- Conservative Electorial Assoc.
- C&R Transmission Service Inc.
- DRPS
- Durham College
- DRP Association Inc.
- Harper Ont Truck Center
- Joe Johnson Equip Inc
- Labour Ready
- Miller Thomson LLP
- ON Trac/John Deere Credit
- R.A. Graham
- Region of Durham
- Rogers
- Scotiabank
- J&M Tire
- Forensic Technologies Inc.
- TD Canada Trust
- Telus
- Town of Whitby
- William Communication Service
- York Regional Police
