Rex a Williams
387 Maryville Ave, Ventura, CA 93003
Operating signal within 12 months from two or more independent sources.
What they make
Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing334511- represents
- Hemisphere GNSS
- precise positioning
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Grava Hydrographic Solutions LLC | Ventura | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing 334511 | ACTIVE | 1.4 KM |
| Neurovision Medical Products, INC. | Ventura | Electromedical and Electrotherapeutic Apparatus Manufacturing 334510 | ACTIVE | 1.7 KM |
| Quick Draw and Machining, INC. | Ventura | Other Metal Container Manufacturing 332439 | ACTIVE | 3.2 KM |
| Prism Maritime INC | Ventura | Ship Building and Repairing 336611 | ACTIVE | 3.3 KM |
| Spectron LLC | Ventura | Electronic Computer Manufacturing 334111 | ACTIVE | 3.4 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 8 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 SEP 2026
- SAM.gov entity registrationOPERATINGRecord KBD4J7EJ9YL9 · first seen DEC 2025 · last seen DEC 2025
IN VENTURA COUNTY41 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 14 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: REX A WILLIAMS · DEC 2025
- Street address
- SAM.gov: 387 MARYVILLE AVE · DEC 2025
- City
- SAM.gov: VENTURA · DEC 2025
- State
- SAM.gov: CA · DEC 2025
- Coordinates
- Census geocoder: 34.282455427399,-119.235630114278 · JUL 2026
- Website
- SAM.gov: https://www.geonavsystems.com · DEC 2025
- CAGE code
- SAM.gov: 3SUC3 · DEC 2025
- SAM registration expires
- SAM.gov: 2026-12-15 · DEC 2025


