Semco Machine Corporation
At a glance
EmployeesNot reported
In business sinceNot reported
Industry
HeadquartersPlainville, MA
US patents3
SAM.gov UEITQFQHCR44KC7
CAGE code166H7
Incorporated inMA
- test fixture kits
- support products
- clamshell type mechanical fixtures
- CAM/GATE test kits
- receivers
- vacuum sealing boxes
- clamps
- universal test fixtures
- test system interface platforms
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit Organization
Self-certified by the company in its SAM.gov registration
Patents
3 US patents granted 1996–2003, none of them in the five years to SEP 2025.
Measurement 2Optics 1
- Apparatus for housing fiber optic modulesUS 6,647,198 · granted NOV 11, 2003
- Mounting apparatus for vectorless testingUS 6,040,699 · granted MAR 21, 2000
- Circuit board test fixture apparatus with cam rotably mounted in slidable cam block and method for makingUS 5,550,481 · granted AUG 27, 1996
Granted to Semco Machine Corporation · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Semco Machine Corporation | Plainville | MA | — | ACTIVE |
Compiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.


