| AFAdvanced Fiberglass Svc Inc/sharpsville | Sharpsville, PA | Plastics and Rubber Products Manufacturing326150 | — | ◇ UNVERIFIED |
| ASA. Stucki Company Dba American Industries | Sharon, PA | Transportation Equipment Manufacturing336510 | 20–99 | ◐ LIKELY ACTIVE |
| ASA. Stucki dba Independent Draft Gear | Farrell, PA | Transportation Equipment Manufacturing336510 | 1–19 | ◐ LIKELY ACTIVE |
| BHBuckeye Hone Company - MERCER | Mercer, PA | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| CICrosstex Intl Inc/mercer | Sharon, PA | Plastics and Rubber Products Manufacturing326113 | — | ◐ LIKELY ACTIVE |
| DADavis Alloys Mfg Llc/sharpsville | Sharpsville, PA | Primary Metal Manufacturing331512 | — | ◐ LIKELY ACTIVE |
| FSFairview Swiss Cheese | Fredonia, PA | Food Manufacturing311513 | — | ◐ LIKELY ACTIVE |
| HFHodge Foundry | Greenville, PA | Primary Metal Manufacturing331511 | 20–99 | ◐ LIKELY ACTIVE |
| ICIngredients - Cheese - West Middlesex PA | West Middlesex, PA | Food Manufacturing311513 | 20–99 | ◐ LIKELY ACTIVE |
| IFIntegrated Fabrication & Machine, Inc. | Greenville, PA | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| KMKalco Metals | Wheatland, PA | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| NPNlmk Pennsylvania Lcc | Farrell, PA | Primary Metal Manufacturing331110 | 500+ | ◐ LIKELY ACTIVE |
| OLOmega Logging, INC. | Wheatland, PA | Wood Product Manufacturing321113 | 1–19 | ◐ LIKELY ACTIVE |
| SSSharon Steel CORP Steel Div | Farrell, PA | Petroleum and Coal Products Manufacturing324199 | — | ◐ LIKELY ACTIVE |
| SPSpang Power Elec/ Sandy Lk | Sandy Lake, PA | Computer and Electronic Product Manufacturing334416 | — | ◐ LIKELY ACTIVE |
| TPTech Precision Sftf | Hadley, PA | Fabricated Metal Product Manufacturing332999 | — | ◐ LIKELY ACTIVE |
| TFThompson Fabrication, LLC | Wheatland, PA | Fabricated Metal Product Manufacturing332312 | 20–99 | ◐ LIKELY ACTIVE |
| VTVec Technology/ Greenville | Greenville, PA | Plastics and Rubber Products Manufacturing326199 | — | ◐ LIKELY ACTIVE |
| WUWabtec US Rail Grove City Engine/mercer | Grove City, PA | Machinery Manufacturing333618 | — | ◐ LIKELY ACTIVE |
| ACAnchor Concrete Fredonia Plt | Fredonia, PA | Nonmetallic Mineral Product Manufacturing327332 | — | ◐ LIKELY ACTIVE |
| BFBucks Fabricating/hadley | Hadley, PA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| DADunbar Asphalt Prod Wheatland Plt | Wheatland, PA | Petroleum and Coal Products Manufacturing324121 | — | ◐ LIKELY ACTIVE |
| MAMercer Area Jr Sr High Sch | Mercer, PA | Machinery Manufacturing333413 | — | ◐ LIKELY ACTIVE |
| QCQuanex Custom Components/greenville | Greenville, PA | Wood Product Manufacturing321912 | — | ◐ LIKELY ACTIVE |
| SRSmyrna Ready Mix Concrete/shenango Twp | W. Middlesex, PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◐ LIKELY ACTIVE |
| SSSunbelt Solomon Service | Sharon, PA | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◐ LIKELY ACTIVE |
| WTWheatland Tube Council Ave Plt/wheatland Tube LLC | Wheatland, PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| AAAnchor an Oldcastle CO | Fredonia, PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| BBBalmaghie Brewery Distillery | Grove City, PA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| BIBpi Inc-greenville Pa Plant | Greenville, PA | Nonmetallic Mineral Product Manufacturing327992 | — | ◇ UNVERIFIED |
| CSCbs Sharon Groundwater Remediation | Sharon, PA | Electrical Equipment, Appliance & Component Manufacturing335311 | — | ◇ UNVERIFIED |
| CCCustom Container Valley Can LLC | Hadley, PA | Fabricated Metal Product Manufacturing332322 | — | ◇ UNVERIFIED |
| DFDairy Farmers of Amer/savoldi Cheese | West Middlesex, PA | Food Manufacturing311513 | — | ◇ UNVERIFIED |
| DBDamascus Bishop Tube/greenville | Greenville, PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| DODev of Sharpsville Furnace/quarry Development | Sharpsville, PA | Machinery Manufacturing333912 | — | ◇ UNVERIFIED |
| ECEast Coast Chair & Barstool | Mercer, PA | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| GTGeorge & Thomas Cone/hermitage Plt | Hermitage, PA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| IInstron | Grove City, PA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| ITIntl Timber & Veneer/jackson Commerce Park | Jackson Center, PA | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| JMJohn Maneely CO Wheatland Tube Div - Mill Street | Sharon, PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| MUMarcegaglia USA | Greenville, PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| PRPa Rail Car Co/west Middlesex Plt | West Middlesex, PA | Transportation Equipment Manufacturing336510 | — | ◇ UNVERIFIED |
| SCSharon Concrete Batch Plt | Sharon, PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| SSSharon Steel CORP (farrell Works Disposal Area) | Hermitage, PA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| TBThomas & Betts Corp/reznor-mercer Plt | Mercer, PA | Machinery Manufacturing333414 | — | ◇ UNVERIFIED |
| WTWheatland Tube Co/clark St Plt | Sharon, PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| WCWolf Creek Machine | Grove City, PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| AFAPG- Fredonia | Fredonia, PA | Nonmetallic Mineral Product Manufacturing327999 | 20–99 | ◐ LIKELY ACTIVE |
| CCCCL Container | Hermitage, PA | Fabricated Metal Product Manufacturing332431 | 100–499 | ◐ LIKELY ACTIVE |
| CLCreative Logistics LTD | Grove City, PA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |