Isolatek-Stanhope
41 Furnace Street, Stanhope, NJ 07874
Operating signal within 24 months, or from a single source.
What they make
Ground or Treated Mineral and Earth Manufacturing327992Where it is
Other plants nearby
| Facility | City | Industry | Status | Distance |
|---|---|---|---|---|
| Quikrete - Tri-state Plant | Flanders | Cement Manufacturing 327310 | LIKELY ACTIVE | 2.3 KM |
| Rp Smith & Son INC | Succasunna | Concrete Block and Brick Manufacturing 327331 | LIKELY ACTIVE | 6.3 KM |
| Bonsal American INC | Kenvil | All Other Miscellaneous Nonmetallic Mineral Product Manufacturing 327999 | UNVERIFIED | 6.8 KM |
| Diamond Sand and Gravel | Sparta | Ready-Mix Concrete Manufacturing 327320 | LIKELY ACTIVE | 19.0 KM |
| Eastern Concrete Materials INC | Glen Gardner | Concrete Block and Brick Manufacturing 327331 | UNVERIFIED | 29.9 KM |
Also at this address
1 other record shares this street address. Separate filings can describe distinct businesses on one site, or the same plant recorded by different agencies, so every record is kept rather than merged away.
Where this record comes from
2 sources hold this plant, and 3 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.
- OSHA injury and illness reportsOPERATINGRecord 420672 · first seen DEC 2025 · last seen DEC 2025
- DOL Form 5500 retirement plan filingsOPERATINGRecord 932146629|NJ|07874|41 furnace st · first seen DEC 2024 · last seen DEC 2024
IN SUSSEX COUNTY2 other plants share this one’s industry (Other Nonmetallic Mineral Product Manufacturing, NAICS 3279); 0 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.
- Coordinates
- Census geocoder: 40.900797428793,-74.711762503464 · JUL 2026
- Employees (band)
- OSHA: 20-99 · DEC 2025
- Retirement plan filing (Form 5500)
- DOL: 164 active participants, plan year ending 2024-12-31, 2 plan(s) · DEC 2024
