Manufacturing in Warren County, New Jersey
The register lists 122 facilities in Warren, New Jersey. According to the Bureau of Labor Statistics, 114 establishments were counted in Warren in 2025. Chemical Manufacturing accounts for 19 facilities in Warren.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and benchmark
Biggest cities
Federal labor statistics counted at least 114 manufacturing establishments in Warren County in 2025, employing about 2,843 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 122.
Facilities84 FACILITIES
Listing 84 of 122: the facilities with a website, a size band or two sources on record. The rest are in site search.
| Facility | City | Industry | NAICS | Employees | Status |
|---|---|---|---|---|---|
| Covanta Warren Energy Resource CO | Oxford | Miscellaneous Manufacturing | 339999 | — | LIKELY ACTIVE |
| Gj Oliver INC @ Alpha Ind Pk | Alpha | Fabricated Metal Product Manufacturing | 332313 | — | LIKELY ACTIVE |
| M&m Mars INC | Hackettstown | Food Manufacturing | 311330 | — | LIKELY ACTIVE |
| Victaulic CO of America-apex Facility | Stewartsville | Fabricated Metal Product Manufacturing | 332812 | — | LIKELY ACTIVE |
| Anchor Concrete Prods. | Phillipsburg | Nonmetallic Mineral Product Manufacturing | 327331 | — | UNVERIFIED |
| Baer Aggregates INC | Phillipsburg | Nonmetallic Mineral Product Manufacturing | 327410 | — | UNVERIFIED |
| Basf CORP | Belvidere | Chemical Manufacturing | 325510 | — | UNVERIFIED |
| Compac Corporation | Hackettstown | Paper Manufacturing | 322222 | — | UNVERIFIED |
| County Concrete CORP Oxford Plant | Oxford | Nonmetallic Mineral Product Manufacturing | 327320 | — | UNVERIFIED |
| Gulbrandsen Technologies INC | Phillipsburg | Chemical Manufacturing | 325180 | — | UNVERIFIED |
| Linde Gas & Equipment INC | Alpha | Chemical Manufacturing | 325120 | — | UNVERIFIED |
| Medarex INC | Stewartsville | Chemical Manufacturing | 325412 | — | UNVERIFIED |
| Orbel CORP | Phillipsburg | Fabricated Metal Product Manufacturing | 332813 | — | UNVERIFIED |
| Oxford Textile INC | Oxford | Textile Mills | 313311 | — | UNVERIFIED |
| Phillipsburg Commerce Pk | Phillipsburg | Machinery Manufacturing | 333911 | — | UNVERIFIED |
| Praxair | Belvidere | Chemical Manufacturing | 325120 | — | UNVERIFIED |
| Steckel Conc | Lopatcong | Nonmetallic Mineral Product Manufacturing | 327320 | — | UNVERIFIED |
| Tdi Circuitek Div | Belvidere | Computer and Electronic Product Manufacturing | 334412 | — | UNVERIFIED |
| Tilcon Ny INC Oxford Facility | Oxford | Petroleum and Coal Products Manufacturing | 324121 | — | UNVERIFIED |
| Trap Rock Industries -lambertvl | Delaware Township | Nonmetallic Mineral Product Manufacturing | 327991 | — | UNVERIFIED |
| Unified Environmental Services | Phillipsburg | Chemical Manufacturing | 325314 | — | UNVERIFIED |
| Usr Optonix INC | Washington | Miscellaneous Manufacturing | 339999 | — | UNVERIFIED |
| Warren Materials | Stewartsville | Petroleum and Coal Products Manufacturing | 324121 | — | UNVERIFIED |
| Bilby | Hackettstown | Food Manufacturing | 311919 | 20–99 | LIKELY ACTIVE |
| Blue Ridge Lumber HC | Hackettstown | Wood Product Manufacturing | 321113 | 1–19 | LIKELY ACTIVE |
| Hkp | Hackettstown | Food Manufacturing | 311352 | 100–499 | LIKELY ACTIVE |
| Linde - Alpha (Electronics) | Alpha | Chemical Manufacturing | 325120 | 100–499 | LIKELY ACTIVE |
| Phillipsburg NJ Truss | Phillipsburg | Wood Product Manufacturing | 321215 | 1–19 | LIKELY ACTIVE |
| Berry Global Group, INC. | Phillipsburg | Plastics and Rubber Products Manufacturing | 326160 | — | UNVERIFIED |
| Flexco Microwave, INC. | Hackettstown | Primary Metal Manufacturing | 331221 | 20–99 | UNVERIFIED |
| Garden State Asphalt Materials, INC. | Hackettstown | Petroleum and Coal Products Manufacturing | 324121 | 1–19 | UNVERIFIED |
| Industrial Metal INC | Blairstown | Fabricated Metal Product Manufacturing | 332710 | 1–19 | UNVERIFIED |
| Mail Time INC. | Phillipsburg | Printing and Related Support Activities | 323119 | 1–19 | UNVERIFIED |
| Pharm Ops, INC. | Phillipsburg | Chemical Manufacturing | 325412 | 1–19 | UNVERIFIED |