| Business | Phone |
| Archer Motorsports Inc 4531 Airpark Blvd, Duluth 55811 | (218) 727-7559 |
| Arrowhead Machinists Inc 4218 Grand Ave, Duluth 55807 | (218) 624-0622 |
| Industrial Welders & Machinist 3902 Oneota St, Duluth 55807 | (218) 628-1011 |
| Kramer & Moen Machine Co 4110 W Superior St, Duluth 55807 | (218) 624-3611 |
| Miller Mall Machine Shop 1341 Sundby Rd, Duluth 55811 | (218) 940-7303 |
| Northstar Aerospace 4212 Enterprise Cir, Duluth 55811 | (218) 720-2920 |
| O K Auto Parts 502 N 6th Ave E, Duluth 55805 | (218) 727-5001 |
| Pdq Engine & Machine Inc 3001 W Superior St, Duluth 55806 | (218) 628-0293 |
| Precision Points Machining 620 Highway 2, Duluth 55810 | (218) 628-2059 |