Janssen Research & Development LLC
260 E Grand Ave, 2nd Fl, South San Francisco, CA 94080
A closure has been reported but not corroborated.
- Plant closing notice effective APR 26, 2024 · 55 employees · filed FEB 23, 2024 · Closure Permanent — this notice is why the plant is listed as reported closed
Notices filed with the state under the federal WARN Act, as the state publishes them, collected by the WARN Act notices feed (CC BY 4.0). A notice records what the employer told the state; it is not by itself proof that the plant closed.
What they make
Biological Product (except Diagnostic) Manufacturing325414Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Twist Bioscience | South San Francisco | Biological Product (except Diagnostic) Manufacturing 325414 | UNVERIFIED | 0.3 KM |
| Coherus Biosciences | South San Francisco | Biological Product (except Diagnostic) Manufacturing 325414 | UNVERIFIED | 0.6 KM |
| Cell Genesys | S San Francisco | Biological Product (except Diagnostic) Manufacturing 325414 | LIKELY ACTIVE | 0.8 KM |
| Advanced Medicine INC | South San Francisco | Pharmaceutical Preparation Manufacturing 325412 | UNVERIFIED | 0.9 KM |
| Cellares INC | South San Francisco | Biological Product (except Diagnostic) Manufacturing 325414 | UNVERIFIED | 1.1 KM |
Also at this address
No other federal record shares this street address.
Where this record comes from
2 sources hold this plant, and 7 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.
EPA cross-references this facility in BR, CA-ENVIROVIEW, EIS, RCRAINFO · EPA site type STATIONARY.
- State WARN plant-closing and layoff noticesCLOSUREfirst seen APR 2024 · last seen APR 2024
- EPA Facility Registry ServiceEXISTENCERecord 110038890199 · first seen OCT 2016 · last seen OCT 2016
IN SAN MATEO COUNTY207 other plants share this one’s industry (Pharmaceutical and Medicine Manufacturing, NAICS 3254); 7 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
- EPA: JANSSEN RESEARCH & DEVELOPMENT LLC · OCT 2026
- Street address
- EPA: 260 E GRAND AVE · OCT 2026
- City
- EPA: SOUTH SAN FRANCISCO · OCT 2026
- State
- EPA: CA · OCT 2026
- County (FIPS code)
- EPA: 06081 · OCT 2026
- Coordinates
- EPA: 37.653407,-122.395536 · OCT 2026
- Hazardous waste generator (RCRA)
- EPA ECHO: SQG · OCT 2026