| HMHeidelberg Materials Lititz HMA | Lititz, PA | Petroleum and Coal Products Manufacturing324121 | 1–19 | ◐ LIKELY ACTIVE |
| HSHeritage Spirits | Lititz, PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HFHerr Foods - 078 Harrisburg PA | Lancaster, PA | Food Manufacturing311919 | 20–99 | ◐ LIKELY ACTIVE |
| HHH & H Graphics, Inc | Lancaster, PA | Printing and Related Support Activities323111 | 20–99 | ◐ LIKELY ACTIVE |
| HSHillside Spirits LLC | Paradise, PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HTHodge Tool | Lancaster, PA | Fabricated Metal Product Manufacturing332710 | 20–99 | ◐ LIKELY ACTIVE |
| ILIconex, LLC Lancaster | Lancaster, PA | Paper Manufacturing322230 | 20–99 | ◐ LIKELY ACTIVE |
| ICIndustrial Consortium INC | Lancaster, PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| IGIra G Steffy & Son, Inc. | Ephrata, PA | Fabricated Metal Product Manufacturing332312 | 100–499 | ◐ LIKELY ACTIVE |
| IEITT Engineered Valves, LLC | Lancaster, PA | Fabricated Metal Product Manufacturing332911 | 100–499 | ◐ LIKELY ACTIVE |
| JWJackson's Window Shoppe, Inc. | Lancaster, PA | Furniture and Related Product Manufacturing337920 | 20–99 | ◐ LIKELY ACTIVE |
| JAJ&l Alexander LLC | Lancaster, PA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| JCJ.L. Clark | Rockford, PA | Fabricated Metal Product Manufacturing332431 | 100–499 | ◐ LIKELY ACTIVE |
| KCKalas Corporate Center - KC | Denver, PA | Primary Metal Manufacturing331420 | 20–99 | ◐ LIKELY ACTIVE |
| KPKalas Plant 1 - K1 | Denver, PA | Primary Metal Manufacturing331420 | 20–99 | ◐ LIKELY ACTIVE |
| KPKalas Plant 2 - K2 | Denver, PA | Primary Metal Manufacturing331420 | 100–499 | ◐ LIKELY ACTIVE |
| KMKaufhold Machine Shop, INC. | Lancaster, PA | Fabricated Metal Product Manufacturing332710 | — | ◐ LIKELY ACTIVE |
| KLKettleWorks, LLC | Neffsville, PA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| KKeylink | New Holland, PA | Fabricated Metal Product Manufacturing332812 | 100–499 | ◐ LIKELY ACTIVE |
| KCKeystone Catering, LLC | Kinzers, PA | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| KHKnot Hill Winery | Strasburg, PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| KHKog Hill Winery | Lancaster, PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LBLancaster Branch 31 | Lancaster, PA | Chemical Manufacturing325120 | 1–19 | ◐ LIKELY ACTIVE |
| LBLancaster Brasserie | Lancaster, PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| LCLancaster Ciderworks | Lancaster, PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LCLancaster Craft Spirits | Lancaster, PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| LLLancaster Leaf Tobacco Company, Inc. - Storage | Lancaster, PA | Beverage and Tobacco Product Manufacturing312230 | 20–99 | ◐ LIKELY ACTIVE |
| LMLancaster Manufacturing Facility | Lancaster, PA | Food Manufacturing311230 | 100–499 | ◐ LIKELY ACTIVE |
| LPLancaster, Pa | Lancaster, PA | Paper Manufacturing322211 | 1–19 | ◐ LIKELY ACTIVE |
| LPLancaster Pump and Water Treatment | Lancaster, PA | Machinery Manufacturing333911 | 20–99 | ◐ LIKELY ACTIVE |
| LSLancaster SauceCo LLC - A4M | Lancaster, PA | Food Manufacturing311941 | 20–99 | ◐ LIKELY ACTIVE |
| LLandisville | Landisville, PA | Paper Manufacturing322211 | 100–499 | ◐ LIKELY ACTIVE |
| LLeola | Leola, PA | Plastics and Rubber Products Manufacturing326122 | 20–99 | ◐ LIKELY ACTIVE |
| LPLeola Paper Dinnerware (PDIN) | Leola, PA | Paper Manufacturing322219 | 20–99 | ◐ LIKELY ACTIVE |
| LCLift-All Company Corporate | Landisville, PA | Fabricated Metal Product Manufacturing332618 | 20–99 | ◐ LIKELY ACTIVE |
| LMLittle Mutants | Lancaster, PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| LHLogoplaste Hazleton LLC | Lititz, PA | Plastics and Rubber Products Manufacturing326160 | 20–99 | ◐ LIKELY ACTIVE |
| LLLong Lane, PA | Lancaster, PA | Nonmetallic Mineral Product Manufacturing327991 | 1–19 | ◐ LIKELY ACTIVE |
| LLumsden-FLU | Lancaster, PA | Fabricated Metal Product Manufacturing332618 | 100–499 | ◐ LIKELY ACTIVE |
| LPLydall Performance Materials | Lancaster, PA | Miscellaneous Manufacturing339991 | 20–99 | ◐ LIKELY ACTIVE |
| MMain-FMM | Manheim, PA | Plastics and Rubber Products Manufacturing326220 | 20–99 | ◐ LIKELY ACTIVE |
| MPManheim Pike-FLM | Lancaster, PA | Primary Metal Manufacturing331513 | 20–99 | ◐ LIKELY ACTIVE |
| MMdtfab | Ephrata, PA | Fabricated Metal Product Manufacturing332996 | 20–99 | ◐ LIKELY ACTIVE |
| MCMeke CORP | East Earl, PA | Apparel Manufacturing315990 | — | ◐ LIKELY ACTIVE |
| MCMennonite Central Committee | Ephrata, PA | — | — | ◐ LIKELY ACTIVE |
| MCMennonite Central Committee U.S. | Manheim, PA | — | — | ◐ LIKELY ACTIVE |
| MPMeridian Products LLC | East Earl, PA | Furniture and Related Product Manufacturing337110 | 100–499 | ◐ LIKELY ACTIVE |
| MTMid-Atlantic Timberframes | Paradise, PA | Wood Product Manufacturing321992 | 20–99 | ◐ LIKELY ACTIVE |
| MPMilk Plant | Manheim, PA | Food Manufacturing311511 | 20–99 | ◐ LIKELY ACTIVE |
| MHMount Hope Estate & Winery | Manheim, PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |