Insco CORP
412 Main St, Groton, MA 01450
Operating signal within 12 months from two or more independent sources.
What they make
Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing333612- precision gear grinding
- actuator components
- planetary gears
- robotics
- automotive
- medical
- defense
- ISO 9001 certified
- ITAR registered
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- ISO 9001
- ITAR registered
Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Dantec Dynamics, INC. | Nashua | Analytical Laboratory Instrument Manufacturing 334516 | ACTIVE | 14.8 KM |
| Nim-cor INC | Nashua | Mechanical Power Transmission Equipment Manufacturing 333613 | UNVERIFIED | 20.6 KM |
| Drs Power Technology INC | Fitchburg | Turbine and Turbine Generator Set Units Manufacturing 333611 | LIKELY ACTIVE | 18.4 KM |
| Geartronics Industries | Billerica | Sheet Metal Work Manufacturing 332322 | LIKELY ACTIVE | 22.8 KM |
| Fitchburg Welding CO INC | Westminster | Fabricated Structural Metal Manufacturing 332312 | ACTIVE | 24.5 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
4 sources hold this plant, and 12 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.
EPA cross-references this facility in AIR, ICIS, MA-EPICS, NPDES, RCRAINFO, TRIS · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord NLHTK5WHJDN9 · first seen FEB 2026 · last seen SEP 2026
- DOL Form 5500 retirement plan filingsOPERATINGRecord 042283732|MA|01450|412 main st · first seen DEC 2024 · last seen DEC 2024
- EPA Facility Registry ServiceEXISTENCERecord 110000308783 · first seen OCT 2016 · last seen OCT 2016
ALSO RECORDED ASINSCO
IN MIDDLESEX COUNTY6 other plants share this one’s industry (Engine, Turbine, and Power Transmission Equipment Manufacturing, NAICS 3336); 3 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.
- NameSOURCES DISAGREE
- EPA: INSCO · JUL 2026
- SAM.gov: INSCO CORP · SEP 2026 · ON THIS PAGE
- Street address
- EPA: 412 MAIN ST. · JUL 2026 · ON THIS PAGE
- SAM.gov: 412 MAIN ST · SEP 2026 · ON THIS PAGE
- City
- EPA: GROTON · JUL 2026 · ON THIS PAGE
- SAM.gov: GROTON · SEP 2026 · ON THIS PAGE
- State
- EPA: MA · JUL 2026 · ON THIS PAGE
- SAM.gov: MA · SEP 2026 · ON THIS PAGE
- County (FIPS code)
- EPA: 25017 · SEP 2026
- Coordinates
- EPA: 42.61735,-71.58302 · JUL 2026
- Employees (band)
- DOL: 1-19 · DEC 2024
- Website
- SAM.gov: http://www.inscocorp.com · SEP 2026
- Year established
- Company website: 1952 · AUG 2026
- CAGE code
- SAM.gov: 16328 · SEP 2026
- Retirement plan filing (Form 5500)
- DOL: 18 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- SAM registration expires
- SAM.gov: 2027-02-24 · SEP 2026