Southwest Steel Casting Company, LLC
600 Foundry Dr, Longview, TX 75604
Operating signal within 12 months from two or more independent sources.
What they make
Steel Foundries (except Investment)331513Southwest Steel is a steel foundry in Longview, Texas that produces steel castings up to 6,000 pounds, including carbon, low-alloy, high-alloy, and stainless steel grades. The company offers heat treating and turnkey finishing services, along with quality control processes that include chemical, physical, and non-destructive testing.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Products
Where these came from
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- ISO 9001
Read from this company’s own website on August 9, 2026. Nobody at the facility has confirmed it here, and FactoryRegistry has not verified these — unlike operating status, which comes from independent public records. A certificate can lapse without the website changing, so ask the facility for current ones.
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Harris Industries INC | Longview | Iron Foundries 331511 | UNVERIFIED | 0.8 KM |
| O & D Manufacturing | White Oak | Other Nonferrous Metal Foundries (except Die-Casting) 331529 | LIKELY ACTIVE | 5.7 KM |
| Jots Rentals | Longview | Iron Foundries 331511 | UNVERIFIED | 5.8 KM |
| Lone Star Casting & Machine Partners | Kilgore | Iron Foundries 331511 | UNVERIFIED | 10.3 KM |
| Hillside Castings, LLC | Longview | Aluminum Foundries (except Die-Casting) 331524 | ACTIVE | 12.4 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 5 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 AIR, AIRS/AFS, EIS, NPDES, RCRAINFO, TRIS, TSCA, TX-TCEQ ACR · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | FEB 2026 | FEB 2026 |
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
| EPA FRS | EXISTENCE | JUN 2017 | JUN 2017 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | FEB 2026 |
| CAGE CODE | SAM GOV | FEB 2026 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | FEB 2026 |
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | FEB 2026 |
| REGISTRATION EXPIRATION | SAM GOV | FEB 2026 |
| STATE | EPA FRS | JUL 2026 |
| STATE | SAM GOV | FEB 2026 |
| WEBSITE | SAM GOV | FEB 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.