Proto-works Machining LLC
4615 Industrial St Unit 1u, Simi Valley, CA 93063
UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE
Present in a source dataset, with no recent operating signal.
What they make
All Other Miscellaneous Manufacturing339999Where it is
34.27330, -118.70398 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Printmasters | Simi Valley | All Other Miscellaneous Manufacturing 339999 | UNVERIFIED | 0.2 KM |
| Thales & CO LLC | Simi Valley | All Other Miscellaneous Manufacturing 339999 | LIKELY ACTIVE | 1.4 KM |
| Royal Coatings | Simi Valley | Metal Coating, Engraving (except Jewelry and Silverware), and Allied Services to Manufacturers 332812 | UNVERIFIED | 1.5 KM |
| Party City CORP Dba Halloween City Store #8065 | Simi Valley | Fastener, Button, Needle, and Pin Manufacturing 339993 | UNVERIFIED | 6.5 KM |
| Civilian Lab LLC | Simi Valley | Sporting and Athletic Goods Manufacturing 339920 | ACTIVE | 7.0 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 6 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.
EPA cross-references this facility in RCRAINFO · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA FRS | EXISTENCE | JUL 2021 | JUL 2021 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| CITY | EPA FRS | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| RCRA GENERATOR STATUS | EPA ECHO | AUG 2026 |
| STATE | EPA FRS | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.