Operating signal within 12 months from two or more independent sources.
What they make
Fabricated Structural Metal Manufacturing332312- fabrication
- erection
- detailing
- project management
- miscellaneous metals
- prefabricated platforms
- support structures
- healthcare
- mission critical
- infrastructure projects
- AISC-certified structural steel fabricator
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- MBE
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 |
|---|---|---|---|---|
| PC Iron, INC | Spring Valley | Fabricated Structural Metal Manufacturing 332312 | ACTIVE | 0.2 KM |
| Struc Steel INC | Spring Valley | Fabricated Structural Metal Manufacturing 332312 | LIKELY ACTIVE | 0.2 KM |
| Richardson Steel INC | Spring Valley | Fabricated Structural Metal Manufacturing 332312 | LIKELY ACTIVE | 0.3 KM |
| Gamboa INC | Spring Valley | Fabricated Structural Metal Manufacturing 332312 | UNVERIFIED | 0.2 KM |
| Crafted Metals, Incorporated a California CORP | Spring Valley | All Other Miscellaneous Fabricated Metal Product Manufacturing 332999 | LIKELY ACTIVE | 0.3 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
6 sources hold this plant, and 14 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 NPDES, RCRAINFO · EPA site type STATIONARY.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord L79EX2MPQ2Z5 · first seen JAN 2026 · last seen JAN 2026
- SBA 7(a) and 504 loan recordsEXISTENCEfirst seen JUL 2025 · last seen JUL 2025
- DOL Form 5500 retirement plan filingsOPERATINGRecord 330681625|CA|91977|9075 birch st · first seen DEC 2024 · last seen DEC 2024
- SBA Paycheck Protection Program loan recordsEXISTENCERecord CA|spring valley|9075 birch st · first seen APR 2020 · last seen APR 2020
- EPA Facility Registry ServiceEXISTENCERecord 110070096915 · first seen AUG 2017 · last seen AUG 2017
IN SAN DIEGO COUNTY129 other plants share this one’s industry (Architectural and Structural Metals Manufacturing, NAICS 3323); 37 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.
- Name
- EPA: WHITMORE STEEL INC · JUL 2026 · ON THIS PAGE
- SAM.gov: WHITMORE STEEL, INC · JAN 2026 · ON THIS PAGE
- Street address
- EPA: 9075 BIRCH ST · JUL 2026 · ON THIS PAGE
- SAM.gov: 9075 BIRCH ST · JAN 2026 · ON THIS PAGE
- City
- EPA: SPRING VALLEY · JUL 2026 · ON THIS PAGE
- SAM.gov: SPRING VALLEY · JAN 2026 · ON THIS PAGE
- State
- EPA: CA · JUL 2026 · ON THIS PAGE
- SAM.gov: CA · JAN 2026 · ON THIS PAGE
- County (FIPS code)
- EPA: 06073 · SEP 2026
- Coordinates
- EPA: 32.716625,-117.003928 · JUL 2026
- Employees (band)
- DOL: 1-19 · DEC 2024
- Website
- SAM.gov: www.whitmoresteel.com · JAN 2026
- Year established
- Company website: 1995 · AUG 2026
- CAGE code
- SAM.gov: 0QVT7 · JAN 2026
- Retirement plan filing (Form 5500)
- DOL: 13 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- PPP loan
- SBA PPP: PPP loan x1, approved 2020-04-15, 15 jobs reported · APR 2020
- SAM registration expires
- SAM.gov: 2027-01-05 · JAN 2026
- SBA loans
- SBA: 7a loan x3, jobs 16.0 · JUL 2025