Amtec Corporation
4230 Capital Cir, Janesville, WI 53546
Operating signal within 12 months from two or more independent sources.
What they make
Ammunition (except Small Arms) Manufacturing332993National Defense Corporation manufactures ammunition, explosives, and ordnance products including 40mm cartridges, impulse cartridges, lead azide, and specialty demolition products. The company performs explosive load, assembly, and pack operations; metal forming and plating; and precision assembly. It serves the U.S. Army, international allies, and defense contractors.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ssi Sintered Specialties, LLC | Janesville | Powder Metallurgy Part Manufacturing 332117 | UNVERIFIED | 1.8 KM |
| Jg Innovations, INC. | Janesville | Sheet Metal Work Manufacturing 332322 | ACTIVE | 5.3 KM |
| Hufcor, INC. | Janesville | Steel Product Manufacturing from Purchased Steel 331200 | UNVERIFIED | 5.6 KM |
| Airesafe International Usa, INC. | Janesville | All Other Miscellaneous Fabricated Metal Product Manufacturing 332999 | ACTIVE | 5.8 KM |
| Ssi Technologies INC (former) | Janesville | Powder Metallurgy Part Manufacturing 332117 | UNVERIFIED | 8.0 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 4 FEDERAL SOURCES, 9 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 RCRAINFO, WI-ESR · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| SAM GOV | OPERATING | SEP 2025 | SEP 2025 |
| EPA FRS | EXISTENCE | NOV 2019 | NOV 2019 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | SEP 2025 |
| CAGE CODE | SAM GOV | SEP 2025 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | SEP 2025 |
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | SEP 2025 |
| REGISTRATION EXPIRATION | SAM GOV | SEP 2025 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | SEP 2025 |
| WEBSITE | SAM GOV | SEP 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.