Photon Spot INC

What they make

• quantum detection systems
• superconducting nanowire single-photon detectors
• quantum computing
• communications
• detector systems
• NASA missions

NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026

Where it is

Other plants nearby

Facility	City	Industry	Status	Distance
MDMcdonnell Douglas Aerospace	Monrovia	Other Electronic Component Manufacturing 334419	◇ UNVERIFIED	1.1 KM
SWShore 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
John Chadwick Corporation	Monrovia	Other Measuring and Controlling Device Manufacturing 334519	● ACTIVE	1.5 KM
GIGenefluidics INC	Irwindale	Analytical Laboratory Instrument Manufacturing 334516	◇ UNVERIFIED	2.9 KM

Every listed plant in Los Angeles County

Also at this address

No other federal record shares this street address.

Where this record comes from

4 sources hold this plant, and 11 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 websiteOPERATING
  first seen JUL 2026 · last seen OCT 2026
• SAM.gov entity registrationOPERATING
  Record Q3LNGG9XQN77 · first seen MAY 2026 · last seen MAY 2026
• DOL Form 5500 retirement plan filingsOPERATING
  Record 271416454|CA|91016|142 w olive ave · first seen DEC 2024 · last seen DEC 2024
• SBA Paycheck Protection Program loan recordsEXISTENCE
  Record CA|monrovia|142 w olive ave · first seen APR 2020 · last seen APR 2020

IN LOS ANGELES COUNTY338 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 73 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: PHOTON SPOT INC · MAY 2026

Street address

SAM.gov: 142 W OLIVE AVE · MAY 2026

City

SAM.gov: MONROVIA · MAY 2026

State

SAM.gov: CA · MAY 2026

Coordinates

Census geocoder: 34.144738093192,-118.002202203494 · JUL 2026

Employees (band)

DOL: 1-19 · DEC 2024

Website

SAM.gov: http://www.photonspot.com · MAY 2026

CAGE code

SAM.gov: 5TVA1 · MAY 2026

Retirement plan filing (Form 5500)

DOL: 4 active participants, plan year ending 2024-12-31, 1 plan(s) · DEC 2024

PPP loan

SBA PPP: PPP loan x1, approved 2020-04-13, 5 jobs reported · APR 2020

SAM registration expires

SAM.gov: 2027-05-01 · MAY 2026