Steam Instruments INC
931 E Main St, Ste 3, Madison, WI 53703
Operating signal within 12 months from two or more independent sources.
What they make
Analytical Laboratory Instrument Manufacturing334516Steam Instruments develops high-spatial resolution mass spectrometry technology, including ion detectors, ion imaging detectors, ion imaging optics, and high-mass spectrometer designs. The company serves applications in biomolecule mapping and analysis, semiconductor device dopant analysis, and nuclear forensics mapping.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Animolecule Technologies LLC | Madison | Analytical Laboratory Instrument Manufacturing 334516 | LIKELY ACTIVE | 0.5 KM |
| Company 91 LLC | Madison | Other Measuring and Controlling Device Manufacturing 334519 | LIKELY ACTIVE | 2.9 KM |
| Hi-techniques, INC | Madison | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | ACTIVE | 4.1 KM |
| Neuwave Medical, INC. | Madison | Surgical and Medical Instrument Manufacturing 339112 | LIKELY ACTIVE | 5.6 KM |
| Accuray Badger Rd | Madison | Irradiation Apparatus Manufacturing 334517 | LIKELY ACTIVE | 6.3 KM |
Also at this address
1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 8 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 |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | DEC 2025 | DEC 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | DEC 2025 |
| CAGE CODE | SAM GOV | DEC 2025 |
| CITY | SAM GOV | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | DEC 2025 |
| REGISTRATION EXPIRATION | SAM GOV | DEC 2025 |
| STATE | SAM GOV | DEC 2025 |
| WEBSITE | SAM GOV | DEC 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.


