Operating signal within 12 months from two or more independent sources.
What they make
Commercial and Service Industry Machinery Manufacturing333310Guernsey Coating Laboratories manufactures optical thin-film coatings covering ultraviolet to near infrared wavelengths, offering both standard and custom coating designs along with research and development, custom tooling, evaluation, and testing services. The company serves the medical, aerospace, defense, optical instrumentation, inspection equipment, telecommunications, imaging, displays, lighting and scanning, laser, and semiconductor industries, as well as universities. The company is ITAR Registered.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Santa Barabara Applied Optics | Ventura | Commercial and Service Industry Machinery Manufacturing 333310 | UNVERIFIED | 0.6 KM |
| Channel Island Opto Mechanical Engr'g | Ventura | Commercial and Service Industry Machinery Manufacturing 333319 | UNVERIFIED | 0.7 KM |
| Harris Water Conditioning | Oxnard | Commercial and Service Industry Machinery Manufacturing 333318 | UNVERIFIED | 9.8 KM |
| Ultralight Control Systems, INC. | Oxnard | All Other Miscellaneous Fabricated Metal Product Manufacturing 332999 | LIKELY ACTIVE | 9.5 KM |
| J. Harris Industrial Water Treatment, INC | Oxnard | Commercial and Service Industry Machinery Manufacturing 333310 | ACTIVE | 11.0 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 2 FEDERAL SOURCES, 8 FIELDS
Every fact on this page traces to a public federal filing. The table below names which register holds this facility, whether that register proves the plant operates or only that it exists, and when each of them last saw it.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | OCT 2025 | OCT 2025 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | OCT 2025 |
| CAGE CODE | SAM GOV | OCT 2025 |
| CITY | SAM GOV | OCT 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | OCT 2025 |
| REGISTRATION EXPIRATION | SAM GOV | OCT 2025 |
| STATE | SAM GOV | OCT 2025 |
| WEBSITE | SAM GOV | OCT 2025 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.