Facility	City	Industry	Status	Distance
HF San Ramon CA	San Ramon	Electromedical and Electrotherapeutic Apparatus Manufacturing 334510	LIKELY ACTIVE	0.0 KM
Gemini Consultants INC	San Ramon	Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515	ACTIVE	0.4 KM
Rheosense INC	San Ramon	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	UNVERIFIED	0.7 KM
Aerotest Operations, INC.	San Ramon	Power Boiler and Heat Exchanger Manufacturing 332410	LIKELY ACTIVE	1.1 KM
Alpha Guardian Networks, LLC	San Ramon	Other Communications Equipment Manufacturing 334290	ACTIVE	1.8 KM

Every listed plant in Contra Costa County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 5 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 CARB-TCH, EIS · EPA site type STATIONARY.

Source	Evidence	First seen	Last seen
EPA FRS	EXISTENCE	AUG 2024	AUG 2024

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
STATE	EPA FRS	JUL 2026

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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