| Business | Phone |
| Advance Electrical Svc 268 Randall St, Oakville L6J 1P9 | (905) 844-3637 |
| Aldin Industrial Installations 460 South Service Rd W, Oakville L6K 2H4 | (905) 849-6688 |
| All Phase Electrical Svc Inc 1702 Heritage Way, Oakville L6M 2Z9 | (905) 825-8144 |
| Hines Electric 2220 Marine Dr #Ph5, Oakville L6L 5H1 | (905) 827-6941 |
| Joseph's Electric 1322 Glenayr Gate, Oakville L6M 4C4 | (905) 842-6429 |
| K M Electrical Contractors 287 Jennings Cres, Oakville L6L 1W3 | (905) 825-2303 |
| Kern Electric 1077 Jutland Pl, Oakville L6H 2V3 | (905) 845-0942 |
| Kruno Electric Ltd 1474 Wallace Rd, Oakville L6L 2Y2 | (905) 465-0080 |
| Lexsan Electric Inc 3328 Burnhamthorpe Rd W, Oakville L6M 4H3 | (905) 847-6504 |
| M S Electric Co Ltd 1462 Wallace Rd, Oakville L6L 2Y2 | (905) 827-7426 |
| Main Electric 571 Weir Ave, Oakville L6L 4X3 | (905) 337-1300 |
| Naylor Group Inc 455 North Service Rd E, Oakville L6H 1A5 | (905) 338-8000 |
| New Electric Corp 3185 Dundas St W, Oakville L6M 4J4 | (905) 827-2555 |
| North Star Electric 1200 Speers Rd #49, Oakville L6L 2X4 | (905) 845-9063 |
| Oakview Electrical Svc 167 Viewbank Cres, Oakville L6L 1R3 | (905) 825-2999 |
| Olde Oakfield Group 1053 North Service Rd E, Oakville L6H 1A6 | (416) 503-9122 |
| Olde Oakville Electric Co Inc 1053 North Service Rd E, Oakville L6H 1A6 | (905) 338-1144 |
| Olech Electric Ltd 379 Davis Rd #2, Oakville L6J 2X2 | (905) 844-2509 |
| E C Power & Lighting Ltd 2475 Beryl Rd, Oakville L6J 7X3 | (905) 815-9464 |
| Perfect Electric Inc 1245 Jonathan Dr, Oakville L6J 7H2 | (416) 806-9113 |
| Prosel Electric Inc 4060 Fourth Line, Oakville L6M 4L4 | (905) 257-2146 |
| Ronaldson Electric Ltd 2141 Sunnybrook Crt, Oakville L6L 1P3 | (905) 827-8057 |
| Selog Contracting Ltd 2871 Brighton Rd, Oakville L6H 6C9 | (905) 829-4044 |
| Tulloch Electric 1432 Aldercrest Crt, Oakville L6M 1X3 | (905) 847-1212 |
| Bucci Electric Ltd 3480 Ninth Line, Oakville L6H 7A9 | (905) 257-7921 |
| Carbone Electric Ltd 447 Speers Rd #17, Oakville L6K 3S7 | (905) 849-5656 |
| Concept Electrical Systems 2800 Coventry Rd, Oakville L6H 6R1 | (905) 829-3031 |
| Conti Electric Co 785 Pacific Rd, Oakville L6L 6M3 | (905) 825-0623 |
| Electri Can Electical Contract 333 River Glen Blvd, Oakville L6H 5X9 | (905) 257-3223 |
| Dorval Electric 253 Margaret Dr, Oakville L6K 2W3 | (905) 845-4341 |