| BMBear Metallurgical Mfg | Butler | PA | Primary Metal Manufacturing331110 | 1-19 | ◐ LIKELY ACTIVE |
| BCButler Color Press/butler | Butler | PA | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| BTButler Technologies Inc | Butler | PA | Printing and Related Support Activities323113 | 20-99 | ◐ LIKELY ACTIVE |
| CMColor Master INC | Butler | IN | Chemical Manufacturing325991 | 100-499 | ◐ LIKELY ACTIVE |
| DIDarling Ingredients INC. | Butler | KY | Food Manufacturing311119 | 20-99 | ◐ LIKELY ACTIVE |
| MIMultimatic Indiana Incorporated | Butler | IN | Transportation Equipment Manufacturing336370 | 100-499 | ◐ LIKELY ACTIVE |
| UPUnited Plate Glass Company (Butler) | Butler | PA | Nonmetallic Mineral Product Manufacturing327215 | 100-499 | ◐ LIKELY ACTIVE |
| WSWestern States Envelope CO | Butler | WI | Paper Manufacturing322230 | — | ◐ LIKELY ACTIVE |
| FIFilmtronics INC | Butler | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| MHMf & H Textiles INC | Butler | GA | Textile Mills313310 | 20-99 | ◐ LIKELY ACTIVE |
| MRMolded Rubber and Plastic CORP | Butler | WI | Plastics and Rubber Products Manufacturing326290 | 100-499 | ◐ LIKELY ACTIVE |
| AIAgr International, Inc. | Butler | PA | Computer and Electronic Product Manufacturing334519 | 100-499 | ◐ LIKELY ACTIVE |
| CLCarmeuse Lime INC | Butler | KY | Nonmetallic Mineral Product Manufacturing327410 | — | ◐ LIKELY ACTIVE |
| CCCleveland Cliffs Steel Corp/ Butler Works | Butler | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| NMNew Millenium Building Systems LLC | Butler | IN | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| SDSteel Dynamics Incorporated | Butler | IN | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| TMT&d Machine, INC. | Butler | WI | Fabricated Metal Product Manufacturing332710 | 1-19 | ◐ LIKELY ACTIVE |
| TCTherma-tru CORP. - Butler | Butler | IN | Wood Product Manufacturing321911 | — | ◐ LIKELY ACTIVE |
| EIErsvin Inds. INC. Amasteel Div. | Butler, | PA | Nonmetallic Mineral Product Manufacturing327910 | — | ◐ LIKELY ACTIVE |
| HMHarsco Metals - Butler | Butler | PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| JIJsp Intl Mfg | Butler | PA | Plastics and Rubber Products Manufacturing326140 | — | ◐ LIKELY ACTIVE |
| PSParagon Steel-treatment Plant | Butler | IN | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
Nova Marketing, INC. | Butler | WI | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| OSOesterlings Sandblasting/butler | Butler | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| 1D106433 - Dekalb Molded Plastics | Butler | IN | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| APAccurate Pattern, INC. | Butler | WI | Fabricated Metal Product Manufacturing332999 | 1-19 | ◐ LIKELY ACTIVE |
| BTButler Tool, Inc. | Butler | WI | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| COChemstation of Wisconsin | Butler | WI | Chemical Manufacturing325611 | 1-19 | ◐ LIKELY ACTIVE |
| CACj Automotive Indiana LLC | Butler | IN | Fabricated Metal Product Manufacturing332216 | 100-499 | ◐ LIKELY ACTIVE |
| ASAk Steel Corp/butler Works | Butler | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| EAErvin Amasteel-Butler Plant | Butler | PA | Nonmetallic Mineral Product Manufacturing327910 | 20-99 | ◐ LIKELY ACTIVE |
| HDHansotte Dental Laboratory | Butler | PA | Miscellaneous Manufacturing339116 | 1-19 | ◐ LIKELY ACTIVE |
| JIJanus IN | Butler | IN | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| MCMago Construction CO LLC - Butler Plant | Butler | KY | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
Mars Petcare US INC | Butler | MO | Food Manufacturing311111 | — | ◐ LIKELY ACTIVE |
| MFM F & H Textiles, Inc. | Butler | GA | Textile Mills313310 | 20-99 | ◐ LIKELY ACTIVE |
| NMNew Millennium Building Systems, LLC. - Butler | Butler | IN | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| RCReady Concrete Services | Butler | MO | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SGStafford Gravel Incorporated | Butler | IN | Nonmetallic Mineral Product Manufacturing327991 | — | ◐ LIKELY ACTIVE |
| WAWiest Asphalt Prod - Butler Facility | Butler | PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| BPBiofab Products, INC. | Butler | PA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| BMButler Mill Service Company | Butler | IN | Nonmetallic Mineral Product Manufacturing327992 | — | ◐ LIKELY ACTIVE |
| SSSouth Side Lumber Company INC | Butler | MO | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| TBTransflo Butler Terminal | Butler | PA | Food Manufacturing311613 | — | ◐ LIKELY ACTIVE |
| ACAbuelito Corn Inc. | Butler | NJ | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| APAir Products and Chemicals Inc.- Butler Facility | Butler | IN | Chemical Manufacturing325120 | 20-99 | ◐ LIKELY ACTIVE |
| AGAmerican Glass Research | Butler | PA | Computer and Electronic Product Manufacturing334519 | 1-19 | ◐ LIKELY ACTIVE |
| BBButler Bakery Feeds | Butler | KY | Food Manufacturing311119 | 1-19 | ◐ LIKELY ACTIVE |
| BWButler, WI Plant | Butler | WI | Food Manufacturing311611 | 100-499 | ◐ LIKELY ACTIVE |
| CMCargill Meat Solutions Corporation | Butler | WI | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |