Diamond USA INC.
Doing business as Diamond USA INC
At a glance
Employees20-99
In business sinceNot reported
Industry
HeadquartersNorth Billerica, MA
SAM.gov UEIKDS7QU6C2AZ3
CAGE code1JZH5
Incorporated inDE
LEI549300VMO8P1J2KYWH22
- fiber optic assemblies
- connectors
- adapters
- outlets
- active core alignment
- cleanroom manufacturing
- high purity cleaning
- photonics
- high power
- defense
- medical
- telecommunication
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Diamond USA INC. | North Billerica | MA | 20–99 | LIKELY 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.

