Facility	City	Industry	Status	Distance
Northrop Grumman Systems CORP -troy Hill 4	Elkridge	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	UNVERIFIED	0.2 KM
Northrop Grumman Systems Corporation- Troy Hill 2 (ste 2a)	Elkridge	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	UNVERIFIED	0.5 KM
Troy Hill Industrial Park - Ngsc Msat3	Elkridge	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	UNVERIFIED	0.5 KM
Northrop Grumman Systems Corporation - Troy Hill 1	Elkridge	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	LIKELY ACTIVE	0.6 KM
Teledyne Flir Defense, INC.	Elkridge	Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511	LIKELY ACTIVE	0.6 KM

Every listed plant in Howard County

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.

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