| Business | Phone |
| Matassa Inc 5335 Walker Rd, Oldcastle N0R 1L0 | (519) 737-1506 |
| Petretta Construction Inc 2504 Binder Cres, Oldcastle N0R 1L0 | (519) 737-1292 |
| Towsley Construction Co Inc 2090 Fasan Dr, Oldcastle N0R 1L0 | (519) 737-7260 |
| Wincon Construction Ltd 5150 Hennin St, Oldcastle N0R 1L0 | (519) 737-1435 |
| Elmara Construction Co Ltd 5365 Walker Rd, Oldcastle N0R 1L0 | (519) 737-1253 |