Mack Prototype, INC
At a glance
EmployeesNot reported
In business since1999
HeadquartersGardner, MA
SAM.gov UEIGLKDY6S9KAR9
CAGE code3ECK5
Incorporated inMA
- 3D printing
- additive manufacturing
- cast urethane molding
- CNC machining
- injection molding
- prototyping
- low-volume production
- programs
- full development lifecycle
Named on the company’s own website, read JUL 29, 2026
What they make
Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/PolymerProsthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/PolymerTemplate
CareersCareers page — seen SEP 8, 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 |
|---|---|---|---|---|
| Mack Prototype, INC | Gardner | 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.