Photon Spot INC
142 W Olive Ave, Monrovia, CA 91016
Operating signal within 12 months from two or more independent sources.
What they make
Analytical Laboratory Instrument Manufacturing334516Photon Spot makes cryogenic and quantum detection systems. The company produces systems delivering temperatures below 1 Kelvin and superconducting nanowire single-photon detectors operating near 155TSStandardPhoto, metrology, quantum computing, and quantum communications industries. It has been providing products since 2009 and its detector systems were used in NASA missions and by JPL.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Ph Solutions | Monrovia | Analytical Laboratory Instrument Manufacturing 334516 | UNVERIFIED | 0.5 KM |
| Ultrasound Wondering INC | Monrovia | Irradiation Apparatus Manufacturing 334517 | UNVERIFIED | 0.5 KM |
| Mcdonnell Douglas Aerospace | Monrovia | Other Electronic Component Manufacturing 334419 | UNVERIFIED | 1.1 KM |
| Shore Western Mfg INC | Monrovia | Machine Shops 332710 | UNVERIFIED | 1.4 KM |
| Amada Weld Tech INC | Monrovia | Welding and Soldering Equipment Manufacturing 333992 | ACTIVE | 1.4 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 | MAY 2026 | MAY 2026 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | SAM GOV | MAY 2026 |
| CAGE CODE | SAM GOV | MAY 2026 |
| CITY | SAM GOV | MAY 2026 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| NAME | SAM GOV | MAY 2026 |
| REGISTRATION EXPIRATION | SAM GOV | MAY 2026 |
| STATE | SAM GOV | MAY 2026 |
| WEBSITE | SAM GOV | MAY 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.