Tri-j Metal Heat Treating CO.
327 E Commercial St, Pomona, CA 91767
Operating signal within 12 months from two or more independent sources.
What they make
Metal Heat Treating332811- heat treating services
- alloy steels
- carbon steels
- stainless steels
- tool steels
- neutral hardening
- carburizing
- austempering
- carbonitriding
- stress relieving
- precipitation age hardening
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ace Plating CO INC | Los Angeles | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | UNVERIFIED | 0.8 KM |
| Superior Plating & Bumpers INC | Pomona | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | LIKELY ACTIVE | 0.8 KM |
| Technical Anodize LLC | Pomona | Aluminum Sheet, Plate, and Foil Manufacturing 331315 | UNVERIFIED | 1.6 KM |
| Precision Metal Processing INC. | Pomona | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | LIKELY ACTIVE | 2.0 KM |
| Hughes Missile Systems CO | Pomona | Electroplating, Plating, Polishing, Anodizing, and Coloring 332813 | UNVERIFIED | 3.3 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
4 sources hold this plant, and 10 fields on this page come from them. Each line is one agency’s own record of it: the identifier it is filed under, whether that record shows the plant operating or only that it exists, and when the register first and last saw it there.
EPA cross-references this facility in CA-CERS, CA-ENVIROVIEW, NPDES, OSHA-OIS, RCRAINFO · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord JCCKFCH81VK1 · first seen MAY 2026 · last seen MAY 2026
- SBA Paycheck Protection Program loan recordsEXISTENCERecord CA|pomona|327 e commercial st · first seen APR 2020 · last seen APR 2020
- EPA Facility Registry ServiceEXISTENCERecord 110055899238 · first seen OCT 2018 · last seen OCT 2018
ALSO RECORDED ASTRI-J HEATING CO
IN LOS ANGELES COUNTY562 other plants share this one’s industry (Coating, Engraving, Heat Treating, and Allied Activities, NAICS 3328); 95 of them have a size band on record.
What each source says
Every field below, as each source filed it. The value this page shows is marked; where the sources disagree, the field says so. Status is computed from independent sources; nothing here is self-reported unless marked Claimed.
- NameSOURCES DISAGREE
- EPA: TRI-J HEATING CO · JUL 2026
- SAM.gov: TRI-J METAL HEAT TREATING CO. · MAY 2026 · ON THIS PAGE
- Street address
- EPA: 327 E COMMERCIAL ST · JUL 2026 · ON THIS PAGE
- SAM.gov: 327 E COMMERCIAL ST · MAY 2026 · ON THIS PAGE
- City
- EPA: POMONA · JUL 2026 · ON THIS PAGE
- SAM.gov: POMONA · MAY 2026 · ON THIS PAGE
- State
- EPA: CA · JUL 2026 · ON THIS PAGE
- SAM.gov: CA · MAY 2026 · ON THIS PAGE
- Coordinates
- Census geocoder: 34.059834140282,-117.745041500401 · JUL 2026 · ON THIS PAGE
- EPA: 34.06004,-117.74513 · JUL 2026 · ON THIS PAGE
- Employees (band)
- SBA PPP: 1-19 · APR 2020
- Website
- SAM.gov: www.trijonline.com · MAY 2026
- CAGE code
- SAM.gov: 5LUB8 · MAY 2026
- PPP loan
- SBA PPP: PPP loan x1, approved 2020-04-29, 14 jobs reported · APR 2020
- SAM registration expires
- SAM.gov: 2027-04-21 · MAY 2026


