| Business | Phone |
| Apex Manufacturing Svc Ltd 494 Foote St, Billings 59101 | (406) 248-7728 |
| Berkley Equipment 321 N 13th St, Billings 59101 | (406) 245-6143 |
| Billings Machine & Welding Shp 115 N 9th St, Billings 59101 | (406) 248-6707 |
| Sprocket's Machine & Wldng Inc 5012 Laurel Rd, Billings 59101 | (406) 245-4823 |
| S & S Welding 542 Moore Ln, Billings 59101 | (406) 252-1039 |
| Cpm 348 Scott St, Billings 59101 | (406) 245-9201 |
| D & H Spring Machine & Welding 3919 Montana Ave, Billings 59101 | (406) 245-3997 |
| Northwest Industries 238 Naylor St, Billings 59101 | (406) 248-2813 |
| Northwest Plating Co 621 Charles St, Billings 59101 | (406) 259-8444 |
| Jes Machine 2839 Drury Ln, Billings 59105 | (406) 591-0216 |
| L & J Machine 101 Cerise Rd, Billings 59101 | (406) 248-2984 |