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Planar Monolithics Industries INC

4921 Robert J Mathews Pkwy, Ste 1, El Dorado Hills, CA 95762

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 3 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Planar Monolithics Industries INC
Their homepage, crawled AUG 2026

What they make

Other Electronic Component Manufacturing334419
  • microwave components
  • integrated modules
  • subsystems
  • 70 GHz
  • amplifiers
  • attenuators
  • bias tees
  • filters
  • ISO 9001

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Products

Sold by PLANAR MONOLITHICS INDUSTRIES, INC. · 5
Amplifiers · Antennas, Waveguides, And Related Equipment · Electrical And Electronic Properties Measuring And Testing Instruments · Miscellaneous Service And Trade Equipment · Switches

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
5 from usaspending_psc · Federal registry
Supplied under federal award N6660424P0524 (2024-09-19), PSC . An award shows what the government bought from this company; it does not establish which of its sites made it.
CAREERS
Careers page — seen SEP 8, 2026

Where it is

38.62701, -121.05989 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Alpha Research & Technology, INC.El Dorado HillsElectronic Computer Manufacturing
334111
ACTIVE0.7 KM
Precision Contacts INCEl Dorado HillsOther Electronic Component Manufacturing
334419
LIKELY ACTIVE1.4 KM
Mobilally LLCCameron ParkOther Electronic Component Manufacturing
334419
ACTIVE7.5 KM
Intel CorporationFolsomElectronic Computer Manufacturing
334111
LIKELY ACTIVE8.5 KM
Kratos Microwave, INC.PlacervilleRadio and Television Broadcasting and Wireless Communications Equipment Manufacturing
334220
ACTIVE16.8 KM

Every listed plant in El Dorado County

Also at this address

No other federal record shares this street address.

Where this record comes from

3 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 RCRAINFO · EPA site type STATIONARY.

  • The company’s own websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record T5KNF5J3KE26 · first seen APR 2026 · last seen APR 2026
  • EPA Facility Registry ServiceEXISTENCE
    Record 110072093559 · first seen NOV 2025 · last seen NOV 2025

ALSO RECORDED ASPLANAR MONOLITHICS INDUSTRIES

IN EL DORADO COUNTY4 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 1 of them has 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: PLANAR MONOLITHICS INDUSTRIES · JUL 2026
SAM.gov: PLANAR MONOLITHICS INDUSTRIES INC · APR 2026 · ON THIS PAGE
Street addressSOURCES DISAGREE
EPA: 4921 ROBERT J MATHEWS PKWY STE 1 EL · JUL 2026
SAM.gov: 4921 ROBERT J MATHEWS PKWY · APR 2026 · ON THIS PAGE
City
EPA: EL DORADO HILLS · JUL 2026 · ON THIS PAGE
SAM.gov: EL DORADO HILLS · APR 2026 · ON THIS PAGE
State
EPA: CA · JUL 2026 · ON THIS PAGE
SAM.gov: CA · APR 2026 · ON THIS PAGE
County (FIPS code)
EPA: 06017 · SEP 2026
Coordinates
EPA: 38.627006,-121.059889 · JUL 2026
Website
SAM.gov: www.pmi-rf.com · APR 2026
CAGE code
SAM.gov: 71A34 · APR 2026
SAM registration expires
SAM.gov: 2027-04-14 · APR 2026

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