Operating signal within 12 months from two or more independent sources.
What they make
Other Electronic Component Manufacturing334419- magnetic-based technologies
- self-biased circulators
- gyromagnetic non-linear transmission lines
- filters
- electronic warfare
- assured communications
- mission-critical environments
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 |
|---|---|---|---|---|
| IPG Photonics - 259 Cedar Hill | Marlborough | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 0.0 KM |
| IPG Photonics - 257 Cedar Hill | Marlborough | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 0.0 KM |
| IPG Photonics - 225 Cedar Hill | Marlborough | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 0.1 KM |
| Richardson Canvys | Marlborough | Other Electronic Component Manufacturing 334419 | LIKELY ACTIVE | 0.5 KM |
| Sheaumann Laser INC | Marlborough | Semiconductor and Related Device Manufacturing 334413 | UNVERIFIED | 0.7 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
3 sources hold this plant, and 9 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 F9RKXNQNP6M5 · first seen APR 2026 · last seen APR 2026
- OSHA injury and illness reportsOPERATINGRecord 1260507 · first seen DEC 2025 · last seen DEC 2025
IN MIDDLESEX COUNTY156 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 43 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: METAMAGNETICS INC · APR 2026
- Street address
- SAM.gov: 261 CEDAR HILL ST · APR 2026
- City
- SAM.gov: MARLBOROUGH · APR 2026
- State
- SAM.gov: MA · APR 2026
- Coordinates
- Census geocoder: 42.318720880064,-71.587496264206 · JUL 2026
- Employees (band)
- OSHA: 20-99 · DEC 2025
- Website
- SAM.gov: www.mtmgx.com · APR 2026
- CAGE code
- SAM.gov: 5HV34 · APR 2026
- SAM registration expires
- SAM.gov: 2027-04-13 · APR 2026