| AAccumetrics | Royersford | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| AGAcf Group LLC | Allison | PA | Fabricated Metal Product Manufacturing332999 | 20-99 | ◐ LIKELY ACTIVE |
| AMAdvantage Metal Powders | Ridgway | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
Allegheny Bradford Corp/lewis Run | Lewis Run | PA | Fabricated Metal Product Manufacturing332313 | 20-99 | ◐ LIKELY ACTIVE |
| APAllegheny Petroleum Products CO. | Wilmerding | PA | Petroleum and Coal Products Manufacturing324191 | 20-99 | ◐ LIKELY ACTIVE |
| AIAlvord-polk, INC. | Millersburg | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| ALA & L Wood INC | Mt Pleasant Mills | PA | Wood Product Manufacturing321920 | 20-99 | ◐ LIKELY ACTIVE |
| AAmatex | Norristown | PA | Textile Mills313310 | 20-99 | ◐ LIKELY ACTIVE |
| APAmerican Products INC | York | PA | Computer and Electronic Product Manufacturing334418 | 20-99 | ◐ LIKELY ACTIVE |
Amick Associates INC | Carnegie | PA | Fabricated Metal Product Manufacturing332618 | 20-99 | ◐ LIKELY ACTIVE |
| ASAmthor Steel | Erie | PA | Fabricated Metal Product Manufacturing332312 | 20-99 | ◐ LIKELY ACTIVE |
| APAmt Pump Company | Royersford | PA | Machinery Manufacturing333911 | 20-99 | ◐ LIKELY ACTIVE |
| AAApt Advanced Polymer Technology CORP. | Evans City | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| ACArmstrong Cement & Supply - Winfield | Cabot | PA | Nonmetallic Mineral Product Manufacturing327310 | 20-99 | ◐ LIKELY ACTIVE |
| ACAssociated Ceramics & Technology Inc | Sarver | PA | Nonmetallic Mineral Product Manufacturing327110 | 20-99 | ◐ LIKELY ACTIVE |
| AFAstra Foods INC. | Upper Darby | PA | Food Manufacturing311612 | 20-99 | ◐ LIKELY ACTIVE |
| APAti Powder Metals, LLC | Oakdale | PA | Primary Metal Manufacturing331110 | 20-99 | ◐ LIKELY ACTIVE |
| APAtlantic Precast Concrete | Tullytown | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| BBBally Block | Bally | PA | Wood Product Manufacturing321999 | 20-99 | ◐ LIKELY ACTIVE |
| BFBeaver Falls Tubular Products LLC | Beaver Falls | PA | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| BVBeaver Valley Alloy Foundry CO | Monaca | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| BMBedford Materials Co/bedford | Manns Choice | PA | Textile Mills313320 | 20-99 | ◐ LIKELY ACTIVE |
| BCBeverage-air CO | Brookville | PA | Fabricated Metal Product Manufacturing332420 | 20-99 | ◐ LIKELY ACTIVE |
| BABoose at Cornwall INC | Lebanon | PA | Primary Metal Manufacturing331524 | 20-99 | ◐ LIKELY ACTIVE |
| BLBrownlee Lumber, INC. | Brookville | PA | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| BHBryn Hill Industries | Yeadon | PA | Plastics and Rubber Products Manufacturing326150 | 20-99 | ◐ 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 |
| BSBvpv Styrenics LLC - Beaver Cnty | Monaca | PA | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| CFCampbell Fittings INC | Boyertown | PA | Fabricated Metal Product Manufacturing332996 | 20-99 | ◐ LIKELY ACTIVE |
| CBCannon Boiler Works | New Kensington | PA | Fabricated Metal Product Manufacturing332410 | 20-99 | ◐ LIKELY ACTIVE |
Cer-mac INC | Telford | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CSCleveland Steel Container/quakertown | Quakertown | PA | Fabricated Metal Product Manufacturing332431 | 20-99 | ◐ LIKELY ACTIVE |
| CMConcast Metal Products CO | Mars | PA | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| CICork Industries INC. | Folcroft | PA | Chemical Manufacturing325510 | 20-99 | ◐ LIKELY ACTIVE |
| CFCorry Fabrication/corry | Corry | PA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| CRCorry Rubber | Corry | PA | Chemical Manufacturing325212 | 20-99 | ◐ LIKELY ACTIVE |
| CICounterTek Inc. | Ephrata | PA | Furniture and Related Product Manufacturing337110 | 20-99 | ◐ LIKELY ACTIVE |
| CICrafco, INC. - Allentown | Allentown | PA | Petroleum and Coal Products Manufacturing324121 | 20-99 | ◐ LIKELY ACTIVE |
| CFCraftweld Fabrication Co., INC. | Montgomeryville | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| CLCummings Lumber CO INC | Troy | PA | Wood Product Manufacturing321113 | 20-99 | ◐ LIKELY ACTIVE |
| DPDauphin Precision Tool LLC | Millersburg | PA | Machinery Manufacturing333511 | 20-99 | ◐ LIKELY ACTIVE |
| DMDor Mae Industries INC | Reading | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| DPDurawood Products Incorporated | Denver | PA | Wood Product Manufacturing321918 | 20-99 | ◐ LIKELY ACTIVE |
| ETEastern Technologies | Morgantown | PA | Chemical Manufacturing325998 | 20-99 | ◐ LIKELY ACTIVE |
| EIEbinger Iron Works | Schuylkill Haven | PA | Fabricated Metal Product Manufacturing332323 | 20-99 | ◐ LIKELY ACTIVE |
| EMElectri -Cord Manufacturing | Westfield | PA | Computer and Electronic Product Manufacturing334419 | 20-99 | ◐ LIKELY ACTIVE |
| EMEllwood Mill Products | New Castle | PA | Fabricated Metal Product Manufacturing332111 | 20-99 | ◐ LIKELY ACTIVE |
| EFErie Forge & Steel INC | Erie | PA | Chemical Manufacturing325411 | 20-99 | ◐ LIKELY ACTIVE |
| EMErie Molded Plastics, INC. | Erie | PA | Plastics and Rubber Products Manufacturing326160 | 20-99 | ◐ LIKELY ACTIVE |