Sigma Machine Inc.
| Location | Kalamazoo, Michigan |
| Website | sigmamachine.net |
| Processes | CNC millingEDM |
| Certifications | None stated |
| Defense work | Not stated |
| Materials | Stated by the shop once the listing is claimed |
| Lead time | Stated by the shop once the listing is claimed |
| Listing | Indexed from public sources, updated October 12, 2026 |
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