| WFWilliamsport Foundry Co/williamsport | Williamsport | PA | Primary Metal Manufacturing331511 | — | ◇ UNVERIFIED |
| WCWolyniec Const INC Stormwater | Williamsport | PA | Nonmetallic Mineral Product Manufacturing327320 | — | ◇ UNVERIFIED |
| 3C3-d Creative Services INC | Williamsport | PA | Miscellaneous Manufacturing339999 | — | ◐ LIKELY ACTIVE |
| AWArxada Williamsport | Williamsport | PA | Chemical Manufacturing325199 | 100-499 | ◐ LIKELY ACTIVE |
| BMBrick Mill Furniture | Williamsport | PA | Wood Product Manufacturing321912 | 20-99 | ◐ LIKELY ACTIVE |
| CDCampana Distilling LLC | Williamsport | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| CLCarter Lumber Ewp 556 | Williamsport | MD | Wood Product Manufacturing321214 | 1-19 | ◐ LIKELY ACTIVE |
| CCCertainTeed Corporation Williamsport Maryland | Williamsport | MD | Plastics and Rubber Products Manufacturing326199 | 100-499 | ◐ LIKELY ACTIVE |
| ELEQI Logistics | Williamsport | MD | Machinery Manufacturing333924 | 20-99 | ◐ LIKELY ACTIVE |
| EDEquipment Depot Pennsylvania, Inc. - Williamsport | Williamsport | PA | Machinery Manufacturing333924 | 20-99 | ◐ LIKELY ACTIVE |
| FPFair Play Distillers | Williamsport | PA | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HSHamzah Slaughter House, LLC | Williamsport | MD | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
| HSHigh Steel Structures LLC - Williamsport | Williamsport | PA | Fabricated Metal Product Manufacturing332312 | 100-499 | ◐ LIKELY ACTIVE |
| JSJasper Steel Works LLC | Williamsport | PA | Fabricated Metal Product Manufacturing332312 | 1-19 | ◐ LIKELY ACTIVE |
| KMKuriTec Manufacturing | Williamsport | IN | Plastics and Rubber Products Manufacturing326220 | 20-99 | ◐ LIKELY ACTIVE |
| NDNomad Distilling Co. | Williamsport | PA | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| ODOverhead Door Corporation | Williamsport | PA | Fabricated Metal Product Manufacturing332321 | 100-499 | ◐ LIKELY ACTIVE |
| PDPlastic Development Company | Williamsport | PA | Plastics and Rubber Products Manufacturing326191 | 20-99 | ◐ LIKELY ACTIVE |
| TSTextron Systems - Lycoming Engines | Williamsport | PA | Transportation Equipment Manufacturing336412 | 500+ | ◐ LIKELY ACTIVE |
| UMUSA MD Hagerstown Plant | Williamsport | MD | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| WWilliamsport | Williamsport | MD | Nonmetallic Mineral Product Manufacturing327212 | 20-99 | ◐ LIKELY ACTIVE |
| WMWilliamsport Manufacturing Plant | Williamsport | MD | Fabricated Metal Product Manufacturing332912 | 20-99 | ◐ LIKELY ACTIVE |
| WOWilliamsport Orthopedic & Prosthetic Co., INC. | Williamsport | PA | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| WPWilliamsport Plant | Williamsport | PA | Food Manufacturing311919 | 100-499 | ◐ LIKELY ACTIVE |
| XHXerxes Hagerstown | Williamsport | MD | Chemical Manufacturing325211 | 20-99 | ◐ LIKELY ACTIVE |
| 2C21st Century Signs | Williamsport | PA | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| AMAntietam Metals, LLC | Williamsport | MD | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| BGBottling Group LLC | Williamsport | MD | Machinery Manufacturing333311 | — | ◇ UNVERIFIED |
| CBCharles Buckalew | Williamsport | PA | Fabricated Metal Product Manufacturing332710 | — | ◇ UNVERIFIED |
| DCDc Casework, INC | Williamsport | MD | Furniture and Related Product Manufacturing337127 | — | ◇ UNVERIFIED |
| GCGeneral Cable CORP. | Williamsport | PA | Primary Metal Manufacturing331318 | — | ◇ UNVERIFIED |
| HMHerbert Malarkey Roofing Company | Williamsport | MD | Nonmetallic Mineral Product Manufacturing327211 | — | ◇ UNVERIFIED |
| IPIndiana Precision Plastics | Williamsport | IN | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| IFIndustrial Fabrications, INC. | Williamsport | PA | Plastics and Rubber Products Manufacturing326299 | — | ◇ UNVERIFIED |
| KTKuri Tec Mfg. INC. | Williamsport | IN | Plastics and Rubber Products Manufacturing326122 | — | ◇ UNVERIFIED |
| LCLangs Chocolates, LLC | Williamsport | PA | Food Manufacturing311314 | — | ◇ UNVERIFIED |
| LBLycoming Bakery | Williamsport | PA | Food Manufacturing311812 | — | ◇ UNVERIFIED |
| MMM & M Sheet Metal & Steel Fabricators | Williamsport | PA | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
| NPNippon Panel Co/south Williamsport P | Williamsport | PA | Wood Product Manufacturing321212 | — | ◇ UNVERIFIED |
| PSPackaging Services of Maryland, INC. | Williamsport | MD | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| PSPackaging Services of Maryland Incorporated | Williamsport | MD | Paper Manufacturing322211 | — | ◇ UNVERIFIED |
| RBReverence Brewing Company LLC | Williamsport | MD | Beverage and Tobacco Product Manufacturing312120 | — | ◇ UNVERIFIED |
| SCSmurfit-stone Container CORP. | Williamsport | PA | Paper Manufacturing322211 | — | ◇ UNVERIFIED |