Sumitomo Electric Interconnect Products, INC.
915 Armorlite Dr, San Marcos, CA 92069
Operating signal within 12 months from two or more independent sources.
What they make
Custom Compounding of Purchased Resins325991Sumitomo Electric Interconnect Products Inc. manufactures heat shrink products, including heat shrink tubing, solder termination sleeves, crimp devices, and identification sleeves and cable markers produced through their SumiMark, Sumitag, and Sumilabel systems. The company serves the aerospace, military, automotive, industrial, commercial, medical, rail/transit, energy, and heavy equipment industries. Production takes place in the United States.
SUMMARIZED FROM THE COMPANY’S OWN WEBSITE
Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Avista Technologies Inc | San Marcos | All Other Miscellaneous Chemical Product and Preparation Manufacturing 325998 | LIKELY ACTIVE | 2.6 KM |
| Kurita America - San Marcos, CA | San Marcos | All Other Miscellaneous Chemical Product and Preparation Manufacturing 325998 | LIKELY ACTIVE | 2.6 KM |
| Bravo Screen Print | Vista | Printing Ink Manufacturing 325910 | UNVERIFIED | 3.3 KM |
| Rs Hughes CO INC | Vista | Adhesive Manufacturing 325520 | ACTIVE | 3.5 KM |
| Polymer Innovations, INC. | Vista | All Other Miscellaneous Chemical Product and Preparation Manufacturing 325998 | LIKELY ACTIVE | 3.8 KM |
Also at this address
No other federal record shares this street address.
WHERE THIS RECORD COMES FROM — 5 FEDERAL SOURCES, 9 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.
EPA cross-references this facility in AIR, AIRS/AFS, CA-ENVIROVIEW, EIS, NPDES, OSHA-OIS, RCRAINFO, TRIS · EPA site type STATIONARY.
| Source | Evidence | First seen | Last seen |
|---|---|---|---|
| COMPANY SITE | OPERATING | JUL 2026 | AUG 2026 |
| SAM GOV | OPERATING | MAY 2026 | MAY 2026 |
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| EPA TRI | OPERATING | DEC 2023 | DEC 2023 |
| EPA FRS | EXISTENCE | NOV 2018 | NOV 2018 |
FIELD BY FIELD — WHICH SOURCE SUPPLIED WHAT
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| ADDRESS LINE1 | EPA FRS | JUL 2026 |
| ADDRESS LINE1 | SAM GOV | MAY 2026 |
| CAGE CODE | SAM GOV | MAY 2026 |
| CITY | EPA FRS | JUL 2026 |
| CITY | SAM GOV | MAY 2026 |
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
| GEOM | EPA FRS | JUL 2026 |
| NAME | EPA FRS | JUL 2026 |
| NAME | SAM GOV | MAY 2026 |
| REGISTRATION EXPIRATION | SAM GOV | MAY 2026 |
| STATE | EPA FRS | JUL 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.

