| Business | Phone |
| Anderdon Machine & Tool 5170 Ure St, Oldcastle N0R 1L0 | (519) 737-6246 |
| B & F Boring Co Ltd 5145 Ure St, Oldcastle N0R 1L0 | (519) 737-1396 |
| Global Manufacturing Canada 2070 Blackacre St, Oldcastle N0R 1L0 | (519) 737-1118 |
| Mallard Machine & Duplicating 2085 Blackacres Dr, Oldcastle N0R 1L0 | (519) 737-7867 |
| Master Machine Inc 2155 Black Acre Dr, Oldcastle N0R 1L0 | (519) 737-6111 |
| Mikkon Machine 3230 Moynahan St, Oldcastle N0R 1L0 | (519) 737-6137 |
| New-Tec Tool Ltd 5345 Brenoan Lane, Oldcastle N0R 1L0 | (519) 737-7999 |
| R T Duplicating Inc 5091 O'Neil Dr, Oldcastle N0R 1L0 | (519) 737-1880 |
| Revel Precision Machine Inc 1920 Crowder St, Oldcastle N0R 1L0 | (519) 737-9986 |
| Rivait Machine Tools Inc 5275 Brenoan Lane, Oldcastle N0R 1L0 | (519) 737-1781 |
| Rova Machine Inc 2080 Fasan Dr, Oldcastle N0R 1L0 | (519) 737-6499 |
| S M Engineering & Design 2160 Solar Cres #3, Oldcastle N0R 1L0 | (519) 737-2635 |
| Sun-Tech Machine & Tool 3750 Delduca Dr, Oldcastle N0R 1L0 | (519) 737-7100 |
| Vesta Tools Inc 5161 O'Neil Dr, Oldcastle N0R 1L0 | (519) 737-6947 |
| Dart Machine Ltd 1580 Rossi Dr, Oldcastle N0R 1L0 | (519) 737-1548 |