| Business | Phone |
| A J Tool Co 3525 Scheele Dr A, Jackson 49202 | (517) 787-5755 |
| Airmetal Corp 1309 Bagley Ave, Jackson 49203 | (517) 784-6000 |
| Carb-A-Tron Tool Co 720 Mckay St, Jackson 49202 | (517) 788-7467 |
| F & S Tool & Gauge Co 1027 E South St, Jackson 49203 | (517) 787-2661 |
| H & D Machine Co 607 N Mechanic St, Jackson 49202 | (517) 787-7091 |
| J & J Industry Inc 414 N Jackson St 87-9, Jackson 49201 | (517) 784-3586 |
| Unified Tool & Die Inc 2010 Micor Dr, Jackson 49203 | (517) 768-8070 |
| Southern Mi Black Oxide 1800 Wildwood Ave, Jackson 49202 | (517) 782-2897 |
| Spectrum Tool & Design 128 W Porter St, Jackson 49202 | (517) 768-1056 |
| Rendall Tool 3523 Scheele Dr, Jackson 49202 | (517) 783-6191 |
| Rexden Tool Inc 1912 Belden Rd, Jackson 49203 | (517) 841-9629 |
| Progressive Design 8700 Abbey Rd, Jackson 49201 | (517) 569-2546 |
| Overkill Research & Dev Labs 2010 Micor Dr, Jackson 49203 | (517) 768-8155 |