Martin Marietta Laboratories
1450 Rolling Road, South, Halethorpe, MD 21227
UNVERIFIEDLAST SEEN IN FEDERAL DATA AUG 2024 · 2 SOURCES
Present in a source dataset, with no recent operating signal.
What they make
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing334511Where it is
39.23427, -76.71442 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Formosa Technology Link LLC | Halethorpe | Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220 | LIKELY ACTIVE | 2.5 KM |
| Ngms-t348 | Linthicum | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 4.4 KM |
| Ngms-t300 | Linthicum | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | LIKELY ACTIVE | 4.2 KM |
| Northrop Grumman Systems Corporation | Linthicum Heights | Other Electronic Component Manufacturing 334419 | LIKELY ACTIVE | 4.2 KM |
| Whel-tech INC | Catonsville | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | ACTIVE | 4.6 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 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 AIR, AIRS/AFS, MD-EPSC, MD-PEMIS, NPDES, RCRAINFO · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| EPA ECHO | OPERATING | AUG 2024 | AUG 2024 |
| EPA FRS | EXISTENCE | APR 2017 | APR 2017 |
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.
