Manufacturing in Allegheny County, Pennsylvania
The register lists 1,025 facilities in Allegheny, Pennsylvania. According to the Bureau of Labor Statistics, 1,133 establishments were counted in Allegheny in 2025. Primary Metal Manufacturing has a location quotient of 2.39 in Allegheny, according to the Bureau of Labor Statistics.
SUMMARIZED FROM THE FEDERAL FIGURES ON THIS PAGE
Map, cities and benchmark
Biggest cities
Federal labor statistics counted at least 1,133 manufacturing establishments in Allegheny County in 2025, employing about 34,478 people, counting only the industry subsectors the Bureau of Labor Statistics discloses at this level. This registry lists 1,025, about 90% of that figure.
Facilities15 FACILITIES
Listing 15 of 21: 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 |
|---|---|---|---|---|---|
| Curtiss-wright Electro-mechanical Corporation | Cheswick | Machinery Manufacturing | 333996 | — | ACTIVE |
| Vitro Flat Glass LLC | Cheswick | Nonmetallic Mineral Product Manufacturing | 327211 | — | ACTIVE |
| Cemline CORP | Cheswick | Fabricated Metal Product Manufacturing | 332420 | 1–19 | LIKELY ACTIVE |
| Dynamics, INC. | Cheswick | Plastics and Rubber Products Manufacturing | 326112 | 20–99 | LIKELY ACTIVE |
| Redland Brick Inc/harmar Plt | Cheswick | Nonmetallic Mineral Product Manufacturing | 327120 | — | LIKELY ACTIVE |
| C E Holden | Cheswick | Fabricated Metal Product Manufacturing | 332721 | 1–19 | LIKELY ACTIVE |
| Curtis-wright Electromechanical CORP | Cheswick | Machinery Manufacturing | 333911 | — | UNVERIFIED |
| Harmar Plt | Cheswick | Nonmetallic Mineral Product Manufacturing | 327120 | — | UNVERIFIED |
| Trulite Glass & Aluminum Solutions | Cheswick | Nonmetallic Mineral Product Manufacturing | 327215 | — | UNVERIFIED |
| Cheswick, Pa | Cheswick | Paper Manufacturing | 322211 | 100–499 | LIKELY ACTIVE |
| Pittsburgh Plant | Cheswick | Nonmetallic Mineral Product Manufacturing | 327120 | 20–99 | LIKELY ACTIVE |
| Trulite 100 Business Center Drive | Cheswick | Nonmetallic Mineral Product Manufacturing | 327215 | 100–499 | LIKELY ACTIVE |
| Trulite Pittsburgh APG | Cheswick | Fabricated Metal Product Manufacturing | 332321 | 20–99 | LIKELY ACTIVE |
| 3 Rivers EDM, LLC | Cheswick | Fabricated Metal Product Manufacturing | 332721 | 1–19 | UNVERIFIED |
| Sampco of Pennsylvania | Cheswick | Miscellaneous Manufacturing | 339950 | 20–99 | UNVERIFIED |
