Diamond Manufacturing Company IN 351
600 Royal Road, Michigan City, IN 46360
LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 1 SOURCE
Operating signal within 24 months, or from a single source.
What they make
Metal Crown, Closure, and Other Metal Stamping (except Automotive)332119Where it is
41.71918, -86.84077 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Diamond Mfg CO Midwest | Michigan City | Metal Crown, Closure, and Other Metal Stamping (except Automotive) 332119 | UNVERIFIED | 0.1 KM |
| Ampcor Il, INC. | La Porte | All Other Plastics Product Manufacturing 326199 | UNVERIFIED | 14.7 KM |
| Dwyer Instruments | La Porte | Nonferrous Metal Die-Casting Foundries 331523 | UNVERIFIED | 27.4 KM |
| Powder Processing Technology LLC | Valparaiso | Powder Metallurgy Part Manufacturing 332117 | ACTIVE | 29.9 KM |
| Berrien Metal Products INC | Buchanan | Forging and Stamping 332116 | LIKELY ACTIVE | 39.3 KM |
Also at this address
More than one federal record exists for this street address. The primary record for the site is listed first.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 2 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.