Microsembly LLC
21 Manchester St, Merrimack, NH 03054
Operating signal within 12 months from two or more independent sources.
What they make
Semiconductor and Related Device Manufacturing334413- RF microwave assembly solutions
- die attach
- wire bonding
- engineering
- testing
- inspection
- refurbishment
- aerospace
- defense
- medical
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- AS9100
- ITAR registered
Read from this company’s own website on September 11, 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 |
|---|---|---|---|---|
| BAE Systems Electronic Systems MER | Merrimack | Other Electronic Component Manufacturing 334419 | LIKELY ACTIVE | 1.5 KM |
| Bae Systems Information & Electronic Systems Integration INC | Merrimack | Semiconductor and Related Device Manufacturing 334413 | LIKELY ACTIVE | 1.5 KM |
| Rh Laboratories, INC. | Nashua | Other Electronic Component Manufacturing 334419 | ACTIVE | 2.9 KM |
| Qmagiq LLC | Nashua | Semiconductor and Related Device Manufacturing 334413 | ACTIVE | 2.9 KM |
| Celestica LLC | Merrimack | Printed Circuit Assembly (Electronic Assembly) Manufacturing 334418 | ACTIVE | 3.8 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
3 sources hold this plant, and 10 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 RCRAINFO · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord FCEYA98KA663 · first seen MAY 2026 · last seen MAY 2026
- EPA Facility Registry ServiceEXISTENCERecord 110032990128 · first seen JAN 2012 · last seen JAN 2012
IN HILLSBOROUGH COUNTY68 other plants share this one’s industry (Semiconductor and Other Electronic Component Manufacturing, NAICS 3344); 30 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
- EPA: MICROSEMBLY LLC · JUL 2026 · ON THIS PAGE
- SAM.gov: MICROSEMBLY LLC · MAY 2026 · ON THIS PAGE
- Street addressSOURCES DISAGREE
- EPA: 21 MANCHESTER STFIRST FLOOR · JUL 2026
- SAM.gov: 21 MANCHESTER ST · MAY 2026 · ON THIS PAGE
- City
- EPA: MERRIMACK · JUL 2026 · ON THIS PAGE
- SAM.gov: MERRIMACK · MAY 2026 · ON THIS PAGE
- State
- EPA: NH · JUL 2026 · ON THIS PAGE
- SAM.gov: NH · MAY 2026 · ON THIS PAGE
- County (FIPS code)
- EPA: 33011 · SEP 2026
- Coordinates
- EPA: 42.804493,-71.48612 · JUL 2026
- Website
- SAM.gov: https://www.microsembly.com · MAY 2026
- Year established
- Company website: 2019 · AUG 2026
- CAGE code
- SAM.gov: 8CSJ0 · MAY 2026
- SAM registration expires
- SAM.gov: 2027-05-05 · MAY 2026