Microsemi Soc CORP.

3870 N 1st St, San Jose, CA 95134

LIKELY ACTIVELAST SEEN IN FEDERAL DATA AUG 2026 · 2 SOURCES

Operating signal within 24 months, or from a single source.

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What they make

Semiconductor and Related Device Manufacturing334413

Products

Sold by MICROSEMI SOC CORP. · 2

Microcircuits, Electronic · Miscellaneous Electrical And Electronic Components

Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.

Where these came from

2 from usaspending_psc · Federal registry

Supplied under federal award FA868424FB012 (2024-03-18), PSC . An award shows what the government bought from this company; it does not establish which of its sites made it.

Where it is

37.41189, -121.94855 · CENSUS TIGER

COUNTY

Santa Clara County

METRO AREA

San Jose-Sunnyvale-Santa Clara, CA

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Open this address

STREET VIEW

Open street-level view — OCT 2022

Other plants nearby

Facility	City	Industry	Status	Distance
Microsemi CORP. - Analog Mixed Signal Group	San Jose	Semiconductor and Related Device Manufacturing 334413	LIKELY ACTIVE	0.1 KM
Infiniti Solutions USA INC	San Jose	Bare Printed Circuit Board Manufacturing 334412	LIKELY ACTIVE	0.1 KM
Amplitech Group INC	San Jose	Semiconductor and Related Device Manufacturing 334413	ACTIVE	0.2 KM
Jds Uniphase Corporation	San Jose	Other Communications Equipment Manufacturing 334290	LIKELY ACTIVE	0.3 KM
Naprotek, LLC	San Jose	Bare Printed Circuit Board Manufacturing 334412	ACTIVE	0.4 KM

Every listed plant in Santa Clara County

Also at this address

1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.

Microchip Technology Inc. San Jose 3870

San Jose, CA

LIKELY ACTIVE334413EMP 100-499

Where this record comes from

2 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-ENVIROVIEW, EIS · EPA site type STATIONARY.

SAM.gov entity registrationOPERATING
Record LZZWKDET29A7 · first seen SEP 2025 · last seen AUG 2026
EPA Facility Registry ServiceEXISTENCE
Records 110064925915, 110071755011 · first seen OCT 2015 · last seen AUG 2024

ALSO RECORDED ASMICROSEMI; MICROSEMI CORPORATION

IN SANTA CLARA COUNTY823 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 128 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.

NameSOURCES DISAGREE: EPA: MICROSEMI CORPORATION · JUL 2026; SAM.gov: MICROSEMI SOC CORP. · AUG 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE: EPA: 3870 N 1ST STREET · JUL 2026; SAM.gov: 3870 N 1ST ST · AUG 2026 · ON THIS PAGE
City: EPA: SAN JOSE · JUL 2026 · ON THIS PAGE; SAM.gov: SAN JOSE · AUG 2026 · ON THIS PAGE
State: EPA: CA · JUL 2026 · ON THIS PAGE; SAM.gov: CA · AUG 2026 · ON THIS PAGE
County (FIPS code): EPA: 06085 · SEP 2026
Coordinates: Census geocoder: 37.41188872657,-121.94854560808 · JUL 2026 · ON THIS PAGE; EPA: 37.41222,-121.94863 · JUL 2026 · ON THIS PAGE
Website: SAM.gov: http://www.microsemi.com · AUG 2026
CAGE code: SAM.gov: 0J4Z0 · AUG 2026
SAM registration expires: SAM.gov: 2027-08-10 · AUG 2026

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