Hydro Electronic Devices, Inc.
2120 Constitution Avenue, Hartford, WI 53027
LIKELY ACTIVELAST SEEN IN FEDERAL DATA DEC 2025 · 1 SOURCE
Operating signal within 24 months, or from a single source.
What they make
Relay and Industrial Control Manufacturing335314Where it is
43.33370, -88.41801 · CENSUS TIGER
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Pa Electronics CORP | Hartland | Power, Distribution, and Specialty Transformer Manufacturing 335311 | ACTIVE | 27.1 KM |
| Marlin Technologies, INC. | Horicon | Other Measuring and Controlling Device Manufacturing 334519 | ACTIVE | 23.4 KM |
| Mectronx CORP | Oconomowoc | Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418 | ACTIVE | 30.2 KM |
| Dynamic Ratings, INC. | Sussex | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | LIKELY ACTIVE | 27.6 KM |
| Sussex Manufacturing | Sussex | Motor and Generator Manufacturing 335312 | UNVERIFIED | 28.0 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 1 FEDERAL SOURCE, 2 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
