| Business | Phone |
| Amphenol Canada Corp 20 Melford Dr #16, Scarborough M1B 2X6 | (416) 291-4401 |
| B & L Coaxial Connections Ltd 3251 Kennedy Rd #17, Scarborough M1V 2J9 | (416) 292-3906 |
| Haefely Trench 71 Maybrook Dr, Scarborough M1V 4B6 | (416) 298-8108 |
| Hoffman Enclosures Inc 111 Grangeway Ave #504, Scarborough M1H 3E9 | (416) 289-2770 |
| K-Line Insulators Ltd 50 Passmore Ave, Scarborough M1V 4T1 | (416) 292-2008 |
| Milplex Circuits Inc 70 Maybrook Dr, Scarborough M1V 4B6 | (416) 292-8645 |
| Msp Protection Systems 38 Kilchurn Castle Dr, Scarborough M1T 2W4 | (416) 609-2222 |
| Multiconnect 127 Manville Rd, Scarborough M1L 4J7 | (416) 345-1863 |
| Noma Industrial Cords Co 120 Mack Ave, Scarborough M1L 1N3 | (416) 690-6663 |
| Staticon Limited 390 Tapscott Rd, Scarborough M1B 3C4 | (416) 291-3871 |
| Trench Ltd 390 Midwest Rd, Scarborough M1P 3B5 | (416) 751-8570 |
| Tri-Tech Systems 540 Coronation Dr #3, Scarborough M1E 5B7 | (416) 724-9939 |
| W R Key Ltd 4770 Sheppard Ave E, Scarborough M1S 3V6 | (416) 291-6246 |
| Woods Industries Inc 375 Kennedy Rd, Scarborough M1K 2A3 | (416) 267-4614 |
| Canswiss Industries Ltd 924 Port Union Rd, Scarborough M1C 2L9 | (416) 283-1400 |
| Circuit Centre Inc 175 Midwest Rd, Scarborough M1P 3A6 | (416) 285-5550 |
| Edac Inc 40 Tiffield Rd, Scarborough M1V 5B6 | (416) 754-3322 |
| Fci Canada Inc 1530 Birchmount Rd, Scarborough M1P 2G9 | (416) 757-8761 |
| General Switchgear & Controls 4140 Finch Ave E, Scarborough M1S 3T9 | (416) 292-9810 |