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Proto Engineering Corporation

183 Commercial Street, Sunnyvale, CA 94086

UNVERIFIEDLAST SEEN IN FEDERAL DATA — · 1 SOURCE

Present in a source dataset, with no recent operating signal.

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What they make

Bare Printed Circuit Board Manufacturing334412

Where it is

37.37628, -122.00874 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS

Other plants nearby

FacilityCityIndustryStatusDistance
Reliance Technical ServicesSunnyvalePharmaceutical Preparation Manufacturing
325412
UNVERIFIED0.2 KM
Applied Materials, INC.SunnyvaleFarm Machinery and Equipment Manufacturing
333111
LIKELY ACTIVE0.3 KM
Philips SemiconductorsSunnyvaleSemiconductor and Related Device Manufacturing
334413
UNVERIFIED0.6 KM
Applied Materials INC Arques CampusSunnyvaleSemiconductor Machinery Manufacturing
333242
LIKELY ACTIVE0.6 KM
Advanced Micro Devices, INC.SunnyvaleSemiconductor and Related Device Manufacturing
334413
UNVERIFIED0.7 KM

Every listed plant in Santa Clara 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 110071747535 · first seen JUN 2016 · last seen AUG 2024

ALSO RECORDED ASPROTO ENGINEERING CORPORTION

IN SANTA CLARA COUNTY822 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.

Name
EPA: PROTO ENGINEERING CORPORATION · OCT 2026
Street address
EPA: 183 COMMERCIAL STREET · OCT 2026
City
EPA: SUNNYVALE · OCT 2026
State
EPA: CA · OCT 2026
County (FIPS code)
EPA: 06085 · OCT 2026
Coordinates
EPA: 37.37628,-122.00874 · OCT 2026

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