Operating signal within 12 months from two or more independent sources.
What they make
Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals334515- high voltage equipment
- phasing voltmeters
- voltage detectors
- grounding equipment
- protective equipment
- hot sticks
- Search MENU MENU STB
- Accessories Grounding PPE
- Brands Repair
- Test Repair
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
CERTIFICATIONS — LISTED ON THE COMPANY’S WEBSITE
- WBE
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 |
|---|---|---|---|---|
| Surface Systems & Instruments INC | Auburn | Construction Machinery Manufacturing 333120 | ACTIVE | 2.8 KM |
| Ird Acquisitions LLC | Auburn | Commercial and Service Industry Machinery Manufacturing 333310 | ACTIVE | 3.9 KM |
| The Gyro House | Auburn | Other Aircraft Parts and Auxiliary Equipment Manufacturing 336413 | ACTIVE | 4.0 KM |
| Miltenyi Biotec, INC. | Auburn | Biological Product (except Diagnostic) Manufacturing 325414 | ACTIVE | 4.0 KM |
| South Fork Instruments, INC. | Auburn | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513 | ACTIVE | 10.2 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
5 sources hold this plant, and 12 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.
- The company’s own websiteOPERATINGfirst seen JUL 2026 · last seen OCT 2026
- SAM.gov entity registrationOPERATINGRecord K5PBQLZE8DS3 · first seen MAR 2026 · last seen AUG 2026
- DOL Form 5500 retirement plan filingsOPERATINGRecord 942543884|CA|95603|1666 auburn ravine rd · first seen DEC 2024 · last seen DEC 2024
- SBA 7(a) and 504 loan recordsEXISTENCEfirst seen MAY 2024 · last seen MAY 2024
- SBA Paycheck Protection Program loan recordsEXISTENCERecord CA|auburn|1666 auburn ravine rd · first seen APR 2020 · last seen APR 2020
IN PLACER COUNTY17 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 3 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
- SAM.gov: STB ELECTRICAL TEST EQUIPMENT, INC. · AUG 2026
- Street address
- SAM.gov: 1666 AUBURN RAVINE RD · AUG 2026
- City
- SAM.gov: AUBURN · AUG 2026
- State
- SAM.gov: CA · AUG 2026
- Coordinates
- Census geocoder: 38.920065033857,-121.061975961821 · JUL 2026
- Employees (band)
- DOL: 1-19 · DEC 2024
- Website
- SAM.gov: https://www.stbinc.net/ · AUG 2026
- CAGE code
- SAM.gov: 1DH77 · AUG 2026
- Retirement plan filing (Form 5500)
- DOL: 7 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024
- PPP loan
- SBA PPP: PPP loan x1, approved 2020-04-30, 8 jobs reported · APR 2020
- SAM registration expires
- SAM.gov: 2027-08-06 · AUG 2026
- SBA loans
- SBA: 7a loan x3, jobs 0.0 · MAY 2024