Micro Harmonics Corporation

What they make

• millimeter wave products
• components
• attenuators
• cryogenic isolators
• diamond heat spreaders
• circulators
• orthomode transducers
• millimeter-wave applications

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

Where it is

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Every listed plant in Botetourt County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 13 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.

• The company’s own websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record E8FNYDJQMMD3 · first seen MAR 2026 · last seen OCT 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 263523115|VA|24090|20 s roanoke st · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record VA|fincastle|20 s roanoke st ste 202 · first seen APR 2021 · last seen APR 2021

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

SAM.gov: MICRO HARMONICS CORPORATION

Street address

SAM.gov: 20 S ROANOKE ST

City

SAM.gov: FINCASTLE

State

SAM.gov: VA

Coordinates

Census geocoder: 37.498757462775,-79.877640157786 · JUL 2026

Employees (band)

DOL: 1-19 · DEC 2024

Website

SAM.gov: microharmonics.com

Year established

Company website: 2008 · AUG 2026

CAGE code

SAM.gov: 6T4C6

Retirement plan filing (Form 5500)

DOL: 12 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x2, approved 2021-04-30, 7 jobs reported · APR 2021

SAM registration expires

SAM.gov: 2027-03-17

State business registration

VA SCC: Micro Harmonics Corporation, registered with the Virginia State Corporation Commission; Corporation; formed 2008-09-19; revoked 2024-10-02 · OCT 2024