| HFHuntington Foam Llc/brockway | Brockway | PA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| HFHuntington Foam Pitt/mt Pleasant | Mount Pleasant | PA | Plastics and Rubber Products Manufacturing326140 | — | ◇ UNVERIFIED |
| HPHuntsman Pigments Americas LLC | Easton | PA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| HPHyde Park Foundry | Hyde Park | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| HIHydraulic Industrial CORP of America (hicorp) | Zelienople | PA | Fabricated Metal Product Manufacturing332912 | — | ◇ UNVERIFIED |
| HDHydro Dynamics | Shillington | PA | Chemical Manufacturing325998 | — | ◇ UNVERIFIED |
| HLHydrogen LLC | Mckeesport | PA | Electrical Equipment, Appliance & Component Manufacturing335999 | — | ◇ UNVERIFIED |
| ICIac Carlisle LLC | Carlisle | PA | Textile Product Mills314110 | — | ◇ UNVERIFIED |
| ICIa Const Corp/starbrick Plt | Warren | PA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| IIcmi | Connellsville | PA | Chemical Manufacturing325130 | — | ◇ UNVERIFIED |
| IIIdl Incorporated | Pittsburgh | PA | Printing and Related Support Activities323113 | — | ◇ UNVERIFIED |
| IIIlpea Industries Inc/kane | Kane | PA | Fabricated Metal Product Manufacturing332999 | — | ◇ UNVERIFIED |
| ICIndependent Chemical CORP | Pittston | PA | Chemical Manufacturing325320 | — | ◇ UNVERIFIED |
| IPInd Papers | Erie | PA | Paper Manufacturing322120 | — | ◇ UNVERIFIED |
| IWIndustrial _machine Works | Etna | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| IIIngredion Inc/berwick Plt | Berwick | PA | Food Manufacturing311221 | — | ◇ UNVERIFIED |
| ITInhance Technologies LLC | Allentown | PA | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| IPInnovation Printing & Comm/phila | Philadelphia | PA | Printing and Related Support Activities323110 | — | ◇ UNVERIFIED |
| ICInolex Chemical CO | Philadelphia | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ITInsituform Technologies INC | Olyphant | PA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| ITInsituform Tech/olyphant Boro | Olyphant | PA | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| IInstron | Grove City | PA | Computer and Electronic Product Manufacturing334519 | — | ◇ UNVERIFIED |
| IGIntegrative Green Solutions | Washington, Township of | PA | Food Manufacturing311111 | — | ◇ UNVERIFIED |
| ICInterlectric Co/warren | Warren | PA | Electrical Equipment, Appliance & Component Manufacturing335110 | — | ◇ UNVERIFIED |
| IIIntermetro Ind Plt #2 - Wilkes-barre Distribution Center | Plains | PA | Fabricated Metal Product Manufacturing332618 | — | ◇ UNVERIFIED |
| ICInternational Chimney CORP | Kittanning | PA | Nonmetallic Mineral Product Manufacturing327120 | — | ◇ UNVERIFIED |
| IBInterstate Brands CORP | Philadelphia | PA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| IEIntl Envelope Co/rolling Hills | Exton | PA | Paper Manufacturing322230 | — | ◇ UNVERIFIED |
| IPIntl Paper CO Atglen/west Sadbury Twp | Atglen | PA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| ITIntl Timber & Veneer/jackson Commerce Park | Jackson Center | PA | Wood Product Manufacturing321211 | — | ◇ UNVERIFIED |
| IIIonics Incorporated | Bridgeville | PA | Fabricated Metal Product Manufacturing332439 | — | ◇ UNVERIFIED |
| IGIra G Steffy & Son Inc/newport Rd | Ephrata | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| I1Iris 1 Hr Clnr Svc | Southampton | PA | Chemical Manufacturing325190 | — | ◇ UNVERIFIED |
| ICIron City Brewing Co/pgh Brewery | Pittsburgh | PA | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| ISIron Shop the | Broomall | PA | Fabricated Metal Product Manufacturing332323 | — | ◇ UNVERIFIED |
| ITIroquois Tool Sys - Wayne St Facility | Erie | PA | Machinery Manufacturing333924 | — | ◇ UNVERIFIED |
| ITIrving Textile Prod Inc/atglen | Atglen | PA | Textile Mills313221 | — | ◇ UNVERIFIED |
| ICIrwin Car & Equipment | Blairsville | PA | Machinery Manufacturing333131 | — | ◇ UNVERIFIED |
| IFIrwin Fac | Irwin | PA | Machinery Manufacturing333511 | — | ◇ UNVERIFIED |
| ILIsosciences LLC | King of Prussia | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| ITI T T CORP Engineered Valves | Columbia | PA | Fabricated Metal Product Manufacturing332919 | — | ◇ UNVERIFIED |
| IDIwco Direct/hamburg | Hamburg | PA | Printing and Related Support Activities323111 | — | ◇ UNVERIFIED |
| JCJade CORP | Southampton | PA | Computer and Electronic Product Manufacturing334413 | — | ◇ UNVERIFIED |
| JAJames Abbott Incorporated | Philadelphia | PA | Fabricated Metal Product Manufacturing332813 | — | ◇ UNVERIFIED |
| JBJanssen Biotech INC | Malvern | PA | Chemical Manufacturing325412 | — | ◇ UNVERIFIED |
| JBJ & B Blending Technologies | Mckees Rock | PA | Chemical Manufacturing325199 | — | ◇ UNVERIFIED |
| JCJc Cleaners | Gettysburg | PA | Chemical Manufacturing325600 | — | ◇ UNVERIFIED |
| JCJ C Howard Concrete Batch Plt | Carnegie | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| JSJeannette Specialty Glass | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
| JSJeannette Specialty /jeannette Shade & Novelty | Jeannette | PA | Nonmetallic Mineral Product Manufacturing327212 | — | ◇ UNVERIFIED |
