Arroyo Instruments, LLC
1201 Prospect St, San Luis Obispo, CA 93401
Operating signal within 24 months, or from a single source.
What they make
Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals334515- laser diode drivers
- temperature controllers
- laser mounts
- multi-channel controllers
- OEM products
- scientists
NAMED ON THE COMPANY’S OWN WEBSITE, READ JUL 29, 2026
Products
Recorded against the company rather than this address. Federal award and drug records name the company, not the plant, so we cannot say which of its sites makes these.
Where these came from
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Redwire Defense Tech Operations, LLC | San Luis Obispo | Aircraft Manufacturing 336411 | ACTIVE | 0.9 KM |
| Ca124 Crystal Engineering | San Luis Obispo | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals 334515 | LIKELY ACTIVE | 1.5 KM |
| Crystal Engineering CORP | San Luis Obispo | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513 | ACTIVE | 1.6 KM |
| GLA Agricultural Electronics and John K. Thomas | San luis obispo | Electromedical and Electrotherapeutic Apparatus Manufacturing 334510 | UNVERIFIED | 3.7 KM |
| Msi - Mid State Instruments LLC | San Luis Obispo | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables 334513 | LIKELY ACTIVE | 3.9 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 H7G8M5XEU9N1 · first seen OCT 2025 · last seen OCT 2025
IN SAN LUIS OBISPO COUNTY12 other plants share this one’s industry (Navigational, Measuring, Electromedical, and Control Instruments Manufacturing, NAICS 3345); 2 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: ARROYO INSTRUMENTS, LLC · OCT 2025
- Street address
- SAM.gov: 1201 PROSPECT ST · OCT 2025
- City
- SAM.gov: SAN LUIS OBISPO · OCT 2025
- State
- SAM.gov: CA · OCT 2025
- Coordinates
- Census geocoder: 35.23610636794,-120.629397018512 · JUL 2026
- Website
- SAM.gov: https://www.arroyoinstruments.com · OCT 2025
- CAGE code
- SAM.gov: 508Y1 · OCT 2025
- SAM registration expires
- SAM.gov: 2026-10-27 · OCT 2025