Mag Instrument, INC

What they make

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
SNSignify North America Corporation	Ontario	Electric Lighting Equipment Manufacturing 335122	◇ UNVERIFIED	0.9 KM
Doble Engineering Company (Ontario, CA)	Ontario	Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513	◐ LIKELY ACTIVE	1.2 KM
AAAlta Advanced Technologies, Inc.	Ontario	Electric Lighting Equipment Manufacturing 335110	● ACTIVE	2.7 KM
Leadsun, INC.	Ontario	Commercial, Industrial, and Institutional Electric Lighting Fixture Manufacturing 335132	● ACTIVE	5.3 KM
Durimex INC	Chino	Motor Vehicle Electrical and Electronic Equipment Manufacturing 336320	● ACTIVE	7.9 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 · EPA site type STATIONARY.

• EPA Facility Registry ServiceEXISTENCE
  Record 110071791351 · 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: 1720 E ELM ST · OCT 2026

City

EPA: ONTARIO · OCT 2026

State

EPA: CA · OCT 2026

County (FIPS code)

EPA: 06071 · OCT 2026

Coordinates

Census geocoder: 34.046677437513,-117.614772005638 · JUL 2026