FactoryRegistry
Claim a page

Tri-j Metal Heat Treating CO.

327 E Commercial St, Pomona, CA 91767

ACTIVELAST SEEN IN FEDERAL DATA OCT 2026 · 4 SOURCES

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

Visit websiteDirectionsGo to companyClaim this pageGet the badge
Homepage of Tri-j Metal Heat Treating CO.
Their homepage, crawled AUG 2026

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

34.05983, -117.74504 · CENSUS TIGER
COUNTY
METRO AREA
ON GOOGLE MAPS
STREET VIEW

Other plants nearby

FacilityCityIndustryStatusDistance
Ace Plating CO INCLos AngelesElectroplating, Plating, Polishing, Anodizing, and Coloring
332813
UNVERIFIED0.8 KM
Superior Plating & Bumpers INCPomonaElectroplating, Plating, Polishing, Anodizing, and Coloring
332813
LIKELY ACTIVE0.8 KM
Technical Anodize LLCPomonaAluminum Sheet, Plate, and Foil Manufacturing
331315
UNVERIFIED1.6 KM
Precision Metal Processing INC.PomonaElectroplating, Plating, Polishing, Anodizing, and Coloring
332813
LIKELY ACTIVE2.0 KM
Hughes Missile Systems COPomonaElectroplating, Plating, Polishing, Anodizing, and Coloring
332813
UNVERIFIED3.3 KM

Every listed plant in Los Angeles County

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 websiteOPERATING
    first seen JUL 2026 · last seen OCT 2026
  • SAM.gov entity registrationOPERATING
    Record JCCKFCH81VK1 · first seen MAY 2026 · last seen MAY 2026
  • SBA Paycheck Protection Program loan recordsEXISTENCE
    Record CA|pomona|327 e commercial st · first seen APR 2020 · last seen APR 2020
  • EPA Facility Registry ServiceEXISTENCE
    Record 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

Report a correction · Request removal