| CSCollier Stone CO - Mcshane Quarry | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327991 | — | ◇ UNVERIFIED |
| JCJ C Howard Concrete Batch Plt | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JJJet Jack INC | Carnegie | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| MCMallet & Company, INC. | Carnegie | PA | Food Manufacturing311225 | — | ◇ UNVERIFIED |
| OHO Hommel CO | Carnegie | PA | Food Manufacturing311942 | — | ◇ UNVERIFIED |
| PCPetromax Carnegie Plt | Carnegie | PA | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
| UEUnion Elec Steel Carnegie Plt | Carnegie | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| RNReaction Nutrition, L.l.c. | Carnegie | PA | Chemical Manufacturing325411 | — | ◇ UNVERIFIED |
| ARAdvanced Refractory Technologies | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| AAAll American Metals & Recycling LLC | Carnegie | PA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| DDonsco | Carnegie | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| ESEnvirosafe Stripping INC. | Carnegie | PA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| FIFuture-all INC. | Carnegie | PA | Machinery Manufacturing333516 | — | ◇ UNVERIFIED |
| LHLane Holdings | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| NLNcl Landscaping | Carnegie | PA | Machinery Manufacturing333111 | — | ◇ UNVERIFIED |
| RVRed Valve Company, INC. | Carnegie | PA | Fabricated Metal Product Manufacturing332911 | — | ◇ UNVERIFIED |
| RLRingaboy LLC | Carnegie | PA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| SCStandard Ceramic Supply Company | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327110 | — | ◇ UNVERIFIED |
| TIThermo Industries, INC. | Carnegie | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
