Diamond Foundry LLC
322 E Grand Ave, South San Francisco, CA 94080
LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 1 SOURCE
Operating signal within 24 months, or from a single source.
What they make
All Other Miscellaneous Nonmetallic Mineral Product Manufacturing327999Where it is
37.65164, -122.38974 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| A Silvestri CORP | South San Francisco | All Other Plastics Product Manufacturing 326199 | UNVERIFIED | 2.3 KM |
| 1of1 Custom LLC | Millbrae | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999 | UNVERIFIED | 5.8 KM |
| City of Burlingame Water Division | Burlingame | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999 | UNVERIFIED | 9.1 KM |
| Hillsborough City School District South School | Hillsborough | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999 | UNVERIFIED | 9.8 KM |
| Page Rockwell | San Francisco | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999 | UNVERIFIED | 10.4 KM |
Also at this address
No other federal record shares this street address.
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.