| HKHenry Kimberton Fac | Kimberton | PA | Petroleum and Coal Products Manufacturing324122 | — | ◐ LIKELY ACTIVE |
| HMHenry Molded Products INC | Lebanon | PA | Paper Manufacturing322110 | 100-499 | ◐ LIKELY ACTIVE |
| HPHeraeus Precious Metals Conshohocken LLC | West Conshohocken | PA | Fabricated Metal Product Manufacturing332618 | — | ◐ LIKELY ACTIVE |
| HCHercules Cement CO LLC | Stockertown | PA | Nonmetallic Mineral Product Manufacturing327310 | — | ◐ LIKELY ACTIVE |
| HFHerr Foods INC. | Nottingham | PA | Food Manufacturing311919 | 500+ | ◐ LIKELY ACTIVE |
Herr & Sacco, INC. | Manheim | PA | Primary Metal Manufacturing331410 | 20-99 | ◐ LIKELY ACTIVE |
| HSHigh Steel Structures INC | Lancaster | PA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| HSHigh Steel Structures Llc/lancaster Facility | Lancaster | PA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HSHigh Steel Structures - Williamsport Facility | Williamsport | PA | Fabricated Metal Product Manufacturing332312 | — | ◐ LIKELY ACTIVE |
| HUHighwood USA LLC | Tamaqua | PA | Plastics and Rubber Products Manufacturing326121 | 20-99 | ◐ LIKELY ACTIVE |
| HIHiossen, INC | Fairless Hills | PA | Miscellaneous Manufacturing339114 | 100-499 | ◐ LIKELY ACTIVE |
| HFHodge Foundry | Greenville | PA | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| HDHoffman Diamond Products INC. | Punxsutawney | PA | Fabricated Metal Product Manufacturing332117 | 20-99 | ◐ LIKELY ACTIVE |
| HCHomer City Gen Lp/center Twp | Homer City | PA | Chemical Manufacturing325600 | — | ◐ LIKELY ACTIVE |
| HIHoward Industries | Fairview | PA | Fabricated Metal Product Manufacturing332322 | 20-99 | ◐ LIKELY ACTIVE |
| HAHp Acquisition Corp/e Hempfield | Lancaster | PA | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| HPHunter Panels | Smithfield | PA | Plastics and Rubber Products Manufacturing326140 | — | ◐ LIKELY ACTIVE |
| HGH&w Global Industries INC | Blairsville | PA | Fabricated Metal Product Manufacturing332812 | 20-99 | ◐ LIKELY ACTIVE |
| HEHydro Extrusion Usa, LLC | Mountain Top | PA | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
Immunocore Commercial LLC | Conshohocken | PA | Chemical Manufacturing325411 | — | ◐ LIKELY ACTIVE |
| IBImprint Beer Company | Hatfield | PA | Beverage and Tobacco Product Manufacturing312140 | 1-19 | ◐ LIKELY ACTIVE |
| ICIneos Composites Us/phila | Philadelphia | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
| IFInland Flexo Llc/downingtown | Downingtown | PA | Printing and Related Support Activities323111 | 20-99 | ◐ LIKELY ACTIVE |
| IFInnocor Foam Technologies Acp Inc/archbald | Archbald | PA | Plastics and Rubber Products Manufacturing326150 | — | ◐ LIKELY ACTIVE |
| IMInnovative Machining Technology, Inc. Boyertown, PA | Boyertown | PA | Machinery Manufacturing333611 | 20-99 | ◐ LIKELY ACTIVE |
| IKIpsco Koppel Tubular CORP Ambridge | Ambridge | PA | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| IMIra Middleswarth & Son, Inc | Middleburg | PA | Food Manufacturing311919 | 20-99 | ◐ LIKELY ACTIVE |
| IPItw Philadelphia Resins | Montgomeryville | PA | Chemical Manufacturing325211 | — | ◐ LIKELY ACTIVE |
Iwi US INC | Middletown | PA | Fabricated Metal Product Manufacturing332994 | — | ◐ LIKELY ACTIVE |
| JBJabil Brandywine | West Chester | PA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| JSJames Spring & Wire Co. | Malvern | PA | Fabricated Metal Product Manufacturing332613 | 20-99 | ◐ LIKELY ACTIVE |
Jbs Souderton Inc/franconia Twp | Souderton | PA | Food Manufacturing311119 | — | ◐ LIKELY ACTIVE |
| JEJ & E Industries, INC. | Jermyn | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JWJeld Wen Inc/fiber Div Pa | Towanda | PA | Wood Product Manufacturing321219 | — | ◐ LIKELY ACTIVE |
| JSJessop Steel LLC | Washington | PA | Chemical Manufacturing325220 | — | ◐ LIKELY ACTIVE |
| JFJ. F. Burns Machine Co., INC. | Export | PA | Fabricated Metal Product Manufacturing332710 | 20-99 | ◐ LIKELY ACTIVE |
| JIJlg Industries, INC. - Sunnyside Facility | Bedford | PA | Machinery Manufacturing333120 | 100-499 | ◐ LIKELY ACTIVE |
| JMJohnson Matthey INC | Smithfield | PA | Transportation Equipment Manufacturing336390 | — | ◐ LIKELY ACTIVE |
| JMJohnson Matthey, INC. | Wayne | PA | Transportation Equipment Manufacturing336390 | 500+ | ◐ LIKELY ACTIVE |
| JMJohnson Matthey Inc/west Whiteland | West Chester | PA | Primary Metal Manufacturing331491 | 100-499 | ◐ LIKELY ACTIVE |
| JMJohnson Matthey - Wayne Plt | Wayne | PA | Transportation Equipment Manufacturing336312 | — | ◐ LIKELY ACTIVE |
| JPJones Performance Products, Inc. | West Middlesex Borough | PA | Plastics and Rubber Products Manufacturing326199 | 20-99 | ◐ LIKELY ACTIVE |
| JMJoseph Machine Company, Inc | Dillsburg | PA | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| JBJoy Baking Group Hermitage Cone | Hermitage | PA | Food Manufacturing311821 | 500+ | ◐ LIKELY ACTIVE |
| JRJ & R Slaw, Inc. | Lehighton | PA | Nonmetallic Mineral Product Manufacturing327390 | 20-99 | ◐ LIKELY ACTIVE |
| JAJudson a Smith Co/boyertown | Boyertown | PA | Primary Metal Manufacturing331400 | — | ◐ LIKELY ACTIVE |
| JWJ Walter Miller Co/lancaster | Lancaster | PA | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| KMKalas Manufacturing INC Lancaster Plant | Lancaster | PA | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| KHKane Hardwood Collins Pine CO | Kane | PA | Wood Product Manufacturing321113 | — | ◐ LIKELY ACTIVE |
| KIKennametal INC | Bedford | PA | Primary Metal Manufacturing331513 | — | ◐ LIKELY ACTIVE |