Mag Instrument INC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
Doble Engineering Company (Ontario, CA)	Ontario	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	◐ LIKELY ACTIVE	1.8 KM
SNSignify North America Corporation	Ontario	Electric Lighting Equipment Manufacturing 335122	◇ UNVERIFIED	2.9 KM
AAAlta Advanced Technologies, Inc.	Ontario	Electric Lighting Equipment Manufacturing 335110	● ACTIVE	4.8 KM
Leadsun, INC.	Ontario	Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing 335132	● ACTIVE	4.9 KM
Led One CORP	Eastvale	Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing 335132	● ACTIVE	6.2 KM

Every listed plant in San Bernardino County

Also at this address

No other federal record shares this street address.

Where this record comes from

1 source holds this plant, and 6 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.

EPA cross-references this facility in CARB-TCH, EIS · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071776841 · first seen AUG 2024 · last seen AUG 2024

IN SAN BERNARDINO COUNTY20 other plants share this one’s industry (Electric Lighting Equipment Manufacturing, NAICS 3351); 3 of them have a size band on record.

What each source says

Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

Name

EPA: MAG INSTRUMENT INC · OCT 2026

Street address

EPA: 1922 PHILADELPHIA · OCT 2026

City

EPA: ONTARIO · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06071 · OCT 2026

Coordinates

EPA: 34.02992,-117.60098 · OCT 2026