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 Manufacturing334516- mass spectrometry technology
- imaging detectors
- nuclear forensics mapping
- innovation funding
- direct-from-tissue biomolecule mapping
- quantification
- ultra-high-mass biomolecule analysis
- sub-micron mapping
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| 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 | ACTIVE | 5.6 KM |
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| Mad City Labs, INC. | Madison | Analytical Laboratory Instrument Manufacturing 334516 | ACTIVE | 6.4 KM |
| LW Allen LLC | Madison | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513 | LIKELY ACTIVE | 5.9 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 sources hold this plant, and 8 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 websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord LXQ8L5NBEHT6 · first seen DEC 2025 · last seen DEC 2025
IN DANE COUNTY36 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 16 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: STEAM INSTRUMENTS INC · DEC 2025
- Street address
- SAM.gov: 931 E MAIN ST · DEC 2025
- City
- SAM.gov: MADISON · DEC 2025
- State
- SAM.gov: WI · DEC 2025
- Coordinates
- Census geocoder: 43.081807408903,-89.371636316305 · JUL 2026
- Website
- SAM.gov: https://steaminstruments.com · DEC 2025
- CAGE code
- SAM.gov: 89E07 · DEC 2025
- SAM registration expires
- SAM.gov: 2026-11-27 · DEC 2025