Facility	City	Industry	Status	Distance
Celltrio INC	Fremont	Analytical Laboratory Instrument Manufacturing 334516	ACTIVE	0.2 KM
Finisar Corporation	Fremont	Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418	ACTIVE	0.3 KM
Lifeward Ca, INC.	Fremont	Electromedical and Electrotherapeutic Apparatus Manufacturing 334510	ACTIVE	0.4 KM
Duniway Stockroom Corporation	Fremont	Surgical Appliance and Supplies Manufacturing 339113	LIKELY ACTIVE	0.4 KM
Telewave.io INC	Fremont	Radio and Television Broadcasting and Wireless Communications Equipment Manufacturing 334220	ACTIVE	0.5 KM

Every listed plant in Alameda County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 9 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 CA-CERS, CA-ENVIROVIEW, RCRAINFO · EPA site type STATIONARY.

The company’s own websiteOPERATING
first seen JUL 2026 · last seen OCT 2026
OSHA injury and illness reportsOPERATING
Record 1046420 · first seen DEC 2025 · last seen DEC 2025
SAM.gov entity registrationOPERATING
Record R4MGV15K44V3 · first seen NOV 2025 · last seen NOV 2025
EPA Facility Registry ServiceEXISTENCE
Record 110055887456 · first seen OCT 2015 · last seen OCT 2015

IN ALAMEDA COUNTY194 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 40 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: AEHR TEST SYSTEMS · JUL 2026 · ON THIS PAGE; SAM.gov: AEHR TEST SYSTEMS · NOV 2025 · ON THIS PAGE
Street addressSOURCES DISAGREE: EPA: 400 KATO TR. · JUL 2026; SAM.gov: 400 KATO TER · NOV 2025 · ON THIS PAGE
City: EPA: FREMONT · JUL 2026 · ON THIS PAGE; SAM.gov: FREMONT · NOV 2025 · ON THIS PAGE
State: EPA: CA · JUL 2026 · ON THIS PAGE; SAM.gov: CA · NOV 2025 · ON THIS PAGE
Coordinates: EPA: 37.46538,-121.91903 · JUL 2026
Employees (band): OSHA: 100-499 · DEC 2025
Website: SAM.gov: https://www.aehr.com · NOV 2025
CAGE code: SAM.gov: 0X3Y7 · NOV 2025
SAM registration expires: SAM.gov: 2026-11-04 · NOV 2025

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