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Mack Prototype, INC

424 Main St, Gardner, MA 01440

ACTIVELAST SEEN IN FEDERAL DATA SEP 2026 · 4 SOURCES

Operating signal within 12 months from two or more independent sources.

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Homepage of Mack Prototype, INC
Their homepage, crawled JUL 2026

What they make

All Other Plastics Product Manufacturing326199

Mack Prototype produces parts using 3D printing, additive manufacturing, cast orMack Prototype produces parts using . It also uses cast urethane molding, CNC machining, and injection molding. The company serves industries requiring prototyping and low-volume production, and it can manage programs through the full,The company serves industries requiring prototyping and low-volume production, and it can manage programs through the full development lifecycle.

SUMMARIZED FROM THE COMPANY’S OWN WEBSITE

Products

Made or handled here · 3
Prosthesis, Knee, Patellofemorotibial, Semi-Constrained, Cemented, Polymer/Metal/Polymer · Prosthesis, Knee, Patello/Femorotibial, Semi-Constrained, Uncemented, Porous, Coated, Polymer/Metal/Polymer · Template
Where these came from
3 from FDA device registration · Federal registry
FDA device establishment 3005279746, product code JWH
CAREERS
Careers page — seen SEP 8, 2026

Where it is

42.56870, -71.98945 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Garlock Flexibles ConvertingGardnerCommercial Printing (except Screen and Books)
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LIKELY ACTIVE1.6 KM
Garlock Printing & ConvertinGardnerStationery Product Manufacturing
322232
UNVERIFIED1.5 KM
Advanced Cable Ties INCGardnerAll Other Plastics Product Manufacturing
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ACTIVE4.4 KM
Mayhew Basque Plastics LLCWestminsterUnlaminated Plastics Profile Shape Manufacturing
326121
LIKELY ACTIVE5.6 KM
Jaltron LLCWestminsterSurgical and Medical Instrument Manufacturing
339112
LIKELY ACTIVE9.2 KM

Every listed plant in Worcester County

Also at this address

No other federal record shares this street address.

WHERE THIS RECORD COMES FROM — 4 FEDERAL SOURCES, 8 FIELDS

Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.

EPA cross-references this facility in AIR, MA-EPICS, RCRAINFO · EPA site type STATIONARY.

SourceEvidenceFirst seenLast seen
FDA DEVICESOPERATINGAUG 2026SEP 2026
SAM GOVOPERATINGFEB 2026SEP 2026
COMPANY SITEOPERATINGJUL 2026AUG 2026
EPA FRSEXISTENCEOCT 2016OCT 2016
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
FIELDSOURCESIGNAL
ADDRESS LINE1EPA FRSJUL 2026
ADDRESS LINE1SAM GOV
CAGE CODESAM GOV
CITYEPA FRSJUL 2026
CITYSAM GOV
GEOMEPA FRSJUL 2026
NAMEEPA FRSJUL 2026
NAMESAM GOV
REGISTRATION EXPIRATIONSAM GOV
STATEEPA FRSJUL 2026
STATESAM GOV
WEBSITESAM GOV

Status is computed from independent sources; nothing here is self-reported unless marked Claimed.

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