| ASAk Steel Butler Works | Butler | PA | Primary Metal Manufacturing331111 | — | ◇ UNVERIFIED |
| BWBattery Warehouse Plus | Butler | PA | Electrical Equipment, Appliance & Component Manufacturing335911 | — | ◇ UNVERIFIED |
| LLLinde Llc/butler Plt | Butler | PA | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| NANorth American Steel & Wire INC | Butler | PA | Primary Metal Manufacturing331222 | — | ◇ UNVERIFIED |
| SCSpang & Co/magnetics Div | Butler | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| BDButler Digital Printing and Design LLC | Butler | PA | Printing and Related Support Activities323111 | 1-19 | ◇ UNVERIFIED |
| GIGcl, INC. | Butler | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| KPKey Precast & Supply, INC. | Butler | PA | Nonmetallic Mineral Product Manufacturing327999 | 1-19 | ◇ UNVERIFIED |
| PMPhoenix Metals of Pennsylvania, INC. | Butler | PA | Primary Metal Manufacturing331410 | 1-19 | ◇ UNVERIFIED |
| ARAnvil Rods LLC | Butler | PA | Miscellaneous Manufacturing339920 | — | ◇ UNVERIFIED |
| CNCloud Nine Vapor LLC | Butler | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| CMCustom Marble and Granite Installing INC. | Butler | PA | Furniture and Related Product Manufacturing337110 | — | ◇ UNVERIFIED |
| DHDectile Harkus Construction | Butler | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| EPEagle Printing Co/prod Ctr | Butler | PA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| GMGaDova Manufacturing Inc | Butler | PA | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| GIGcl, INC. | Butler | PA | Fabricated Metal Product Manufacturing332116 | — | ◇ UNVERIFIED |
| HCHarsco CO Heckett Multiserv Plant 16 | Butler | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| JEJohnson Enterprise International | Butler | PA | Transportation Equipment Manufacturing336411 | — | ◇ UNVERIFIED |
| SCSemper Concrete Products | Butler | PA | Nonmetallic Mineral Product Manufacturing327390 | — | ◇ UNVERIFIED |
| WAWiest Asphalt Products & Paving, INC. | Butler | PA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| WBWise Business Forms, INC. | Butler | PA | Printing and Related Support Activities323116 | — | ◇ UNVERIFIED |
