| SOSquare One Electric Service - 347 Fork Branch Rd, Dover | Dover, DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| SOState of Delaware Graphics & Printing - 604 Otis Dr, Dover | Dover, DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| SASumpter Auto Refinishing | Dover, DE | Chemical Manufacturing325222 | — | ◇ UNVERIFIED |
| SSSunoco Service Station | Dover, DE | Miscellaneous Manufacturing339112 | — | ◇ UNVERIFIED |
| TMTaylor & Messick - 325 Walt Messick Rd, Harrington | Harrington, DE | Machinery Manufacturing333112 | — | ◇ UNVERIFIED |
| TMTri-county Materials | Dover, DE | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| VDVerizon Dover Soc | Dover, DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| AAAdventures Await Retreat | Houston, DE | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| CCCedar Creek Custom Cabinets, LLC | Harrington, DE | Furniture and Related Product Manufacturing337110 | — | ◐ LIKELY ACTIVE |
| DJD & J Custom Cutting LLC | Hartly, DE | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| EEasyspeak | Milford, DE | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| HFHaass' Family Butcher Shop, Inc. | Dover, DE | Food Manufacturing311611 | — | ◐ LIKELY ACTIVE |
Hanover Foods Corporation Clayton | Clayton, DE | Food Manufacturing311411 | 20–99 | ◐ LIKELY ACTIVE |
| HDHarrington, DE | Harrington, DE | Transportation Equipment Manufacturing336510 | 1–19 | ◐ LIKELY ACTIVE |
| HRHarvest Ridge Winery | Marydel, DE | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| HTHorizon Technical Systems INC | Dover, DE | Miscellaneous Manufacturing339950 | — | ◐ LIKELY ACTIVE |
| IDIlc Dover LP | Frederica, DE | Miscellaneous Manufacturing339113 | — | ◐ LIKELY ACTIVE |
| KAKirby and Holloway Provision Co. | Harrington, DE | Food Manufacturing311612 | — | ◐ LIKELY ACTIVE |
| KHKraft Heinz Dover Delaware | Dover, DE | Food Manufacturing311991 | 500+ | ◐ LIKELY ACTIVE |
| MCMid-atlantic Clean Hydrogen Hub, INC. | Dover, DE | Chemical Manufacturing325120 | — | ◐ LIKELY ACTIVE |
| PSPainted Stave Distilling | Smyrna, DE | Beverage and Tobacco Product Manufacturing312140 | — | ◐ LIKELY ACTIVE |
| PWPizzadili Winery | Felton, DE | Beverage and Tobacco Product Manufacturing312130 | — | ◐ LIKELY ACTIVE |
| PTProfessional Tailor Shop | Dover, DE | Apparel Manufacturing315210 | — | ◐ LIKELY ACTIVE |
| USUnited States Cold Storage Inc. | Milford, DE | — | — | ◐ LIKELY ACTIVE |
| BMBrooks Machine INC | Dover, DE | Machinery Manufacturing333515 | — | ◐ LIKELY ACTIVE |
| AMAllan Myers Delaware, INC. - Bay Road | Dover, DE | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BLBurris Logistics | Harrington, DE | Chemical Manufacturing325211 | — | ◇ UNVERIFIED |
| CACoastal Air LLC | Harrington, DE | Machinery Manufacturing333415 | — | ◇ UNVERIFIED |
| DPDans Pallet | Dover, DE | Wood Product Manufacturing321920 | — | ◇ UNVERIFIED |
| DDover | Dover, DE | Plastics and Rubber Products Manufacturing326199 | — | ◇ UNVERIFIED |
| FIFfi Ionix | Dover, DE | Chemical Manufacturing325120 | — | ◇ UNVERIFIED |
| FSFirst State Signs, INC. | Dover, DE | Miscellaneous Manufacturing339950 | — | ◇ UNVERIFIED |
| GFGrowmark Fs, LLC. | Milford, DE | Chemical Manufacturing325312 | — | ◇ UNVERIFIED |
| HLHandytube LLC | Camden, DE | Primary Metal Manufacturing331210 | — | ◇ UNVERIFIED |
Hanover Foods Corporation | Clayton, DE | Food Manufacturing311421 | — | ◇ UNVERIFIED |
| IWIron Works, INC. | Milford, DE | Fabricated Metal Product Manufacturing332312 | — | ◇ UNVERIFIED |
| JIJC Investments LLC | Dover, DE | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| JIJC Investments LLC | Dover, DE | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| JIJC Investments RB LLC | Camden Wyoming, DE | Food Manufacturing311811 | — | ◇ UNVERIFIED |
| KHKraft Heinz Foods Company | Dover, DE | Food Manufacturing311999 | — | ◇ UNVERIFIED |
| LCLebanon Chemical CORP | Milford, DE | Chemical Manufacturing325314 | — | ◇ UNVERIFIED |
| LVLehigh Valley Dairy | Harrington, DE | Food Manufacturing311511 | — | ◇ UNVERIFIED |
| ONO.a. Newton & Sons CO. | Harrington, DE | Machinery Manufacturing333319 | — | ◇ UNVERIFIED |
Pj Woodlands LLC | Harrington, DE | — | — | ◇ UNVERIFIED |
| QKQuality Kitchen CORP | Wyoming, DE | Food Manufacturing311411 | — | ◇ UNVERIFIED |
| SLStarting Line Sailing, Inc. | Dover, DE | — | — | ◇ UNVERIFIED |
| SSSwartzentruber Sawmill Company | Hartly, DE | Wood Product Manufacturing321113 | — | ◇ UNVERIFIED |
| TDTilcon Delaware - Horsepond Road | Dover, DE | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| UWUni Wear, Inc. | Dover, DE | Leather and Allied Product Manufacturing316210 | — | ◇ UNVERIFIED |