H6 Systems INC
55 Lake St, Nashua, NH 03060
Operating signal within 12 months from two or more independent sources.
What they make
Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals334515- high-power RF transmitters
- high-voltage modulators
- susceptibility testing
- weather radar
- health care
- security systems
- vacuum tubes
- magnetrons
- klystrons
- tetrodes
- triodes
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
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
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Bae Systems Information and Electronic Systems Integration INC. | Nashua | Other Electronic Component Manufacturing 334419 | ACTIVE | 1.7 KM |
| Arc Technology Solutions, LLC | Nashua | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | ACTIVE | 1.7 KM |
| NH Nashua | Nashua | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513 | LIKELY ACTIVE | 1.7 KM |
| Resonetics LLC | Nashua | Electronic Connector Manufacturing 334417 | ACTIVE | 2.0 KM |
| Clear Align LLC | Nashua | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | ACTIVE | 2.0 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
3 sources hold this plant, and 10 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.
- SAM.gov entity registrationOPERATINGRecord KYHGJNJX87E7 · first seen MAR 2026 · last seen OCT 2026
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen SEP 2026
- DOL Form 5500 retirement plan filingsOPERATINGRecord 222322074|NH|03060|55 lake st · first seen DEC 2024 · last seen DEC 2024
IN HILLSBOROUGH COUNTY42 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 23 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
- SAM.gov: H6 SYSTEMS INC
- Street address
- SAM.gov: 55 LAKE ST
- City
- SAM.gov: NASHUA
- State
- SAM.gov: NH
- Coordinates
- Census geocoder: 42.750362457565,-71.467057206756 · JUL 2026
- Employees (band)
- DOL: 1-19 · DEC 2024
- Website
- SAM.gov: http://www.h6systems.com
- CAGE code
- SAM.gov: 71683
- Retirement plan filing (Form 5500)
- DOL: 3 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- SAM registration expires
- SAM.gov: 2027-03-05