Mainspring Energy Headquarters
3601 Haven Avenue, Menlo Park, CA 94025
LIKELY ACTIVE1 SOURCELAST SIGNAL DEC 2025
Operating signal within 24 months, or from a single source.
Location
ADDRESS
3601 Haven Avenue
Menlo Park, CA 94025
Menlo Park, CA 94025
COORDINATES
37.48600, -122.18525
COUNTY
METRO AREA
Industry
EMPLOYMENT
500+ employees
Sources
| SOURCE | EVIDENCE | FIRST SEEN | LAST SEEN |
|---|---|---|---|
| OSHA ITA | OPERATING | DEC 2025 | DEC 2025 |
| FIELD | SOURCE | SIGNAL |
|---|---|---|
| EMPLOYEE BAND | OSHA ITA | DEC 2025 |
| GEOM | CENSUS GEOCODER | JUL 2026 |
Status is computed from independent sources; nothing here is self-reported unless marked Claimed.