| Business | Phone |
| Hartwig Instrument Co 74 Julia St, Thornhill L3T 4R9 | (905) 881-4575 |
| Honda-Sisley Motors Ltd 88 Steeles Ave W, Thornhill L4J 1A1 | (905) 695-8888 |
| Northwest Auto Parts & Supls 50 Doncaster Ave #1, Thornhill L3T 1L4 | (905) 889-3066 |
| Roy Foss Motors Ltd 7200 Yonge St, Thornhill L4J 1V8 | (905) 886-2000 |
| Uap Auto Parts 55 Glen Cameron Rd #1, Thornhill L3T 5W2 | (905) 889-9231 |
| Essex Distributors East Inc 8 Essex Ave #12, Thornhill L3T 3Y9 | (905) 763-7866 |