| Dunn-Edwards Corporation PHXPLT - PHX PLANT AZ | Manufacturing | 0 | — | A |
| Dunn-Edwards Corporation STORE 151 - PHOENIX FACTORY STORE AZ | Retail Trade | 0 | — | B |
| Dunnet Bay Construction Company IL | Construction | 0 | — | F |
| Dunning Electrical Services, Inc. IL | Construction | 0 | — | A |
| Dunning Motor Sales OH | Retail Trade | 0 | — | F |
| Dunning Motor Sales Cambridge OH | Retail Trade | 0 | — | D |
| Dunns MI | Wholesale Trade | 0 | — | A |
| Dunrite Excavation Inc. CO | Construction | 0 | — | F |
| Dunseith Community Nursing Home ND | Healthcare & Social Assistance | 0 | — | A |
| Dunseith Public School District 1 ND | Educational Services | 3 | $47,500 | — |
| Dunson Harvesting Inc FL | Agriculture & Forestry | 0 | — | F |
| Dunwoody College of Technology MN | Educational Services | 1 | $89,502 | — |
| Dunwoody Village PA | Healthcare & Social Assistance | 0 | — | F |
| DUO LIFT MFG NE | Manufacturing | 0 | — | F |
| Duo Plumbing & Heating Corp NY | Construction | 0 | — | A |
| DUO Robotic Solutions MI | Manufacturing | 0 | — | A |
| Duo Wen Inc. TX | Manufacturing | 0 | — | A |
| Duo-Corp. OH | Manufacturing | 0 | — | F |
| Duo-Form Acquistition Corp. MI | Manufacturing | 0 | — | D |
| Duo-Gard Industries, Inc. MI | Construction | 0 | — | F |
| Duo-Safety Ladder WI | Manufacturing | 0 | — | F |
| DUO2 LLC MD | Professional & Technical Services | 1 | $97,157 | — |
| DuoDuo Tech Inc. WA | Wholesale Trade | 1 | $120,000 | — |
| Duolingo, Inc. PA | Professional & Technical Services | 9 | $468,211 | — |
| DuPage Airport Authority IL | Transportation & Warehousing | 0 | — | A |
| DuPage Children's Museum IL | Arts & Entertainment | 0 | — | A |
| DuPage County Health Department IL | Public Administration | 0 | — | A |
| DuPage Machine Products IL | Manufacturing | 0 | — | F |
| DuPage Water Commission IL | Utilities | 0 | — | F |
| Duperon Corporation MI | Manufacturing | 0 | — | F |
| Duphil.com TX | Mining & Extraction | 0 | — | A |
| Dupli Envelope & Graphics NY | Manufacturing | 0 | — | B |
| Dupli-Systems, Inc. OH | Manufacturing | 0 | — | D |
| Duplin County Local Government NC | Public Administration | 0 | — | A |
| DUPLOCLOUD, INC. CA | Professional & Technical Services | 3 | $210,979 | — |
| DuPont DE | Manufacturing | 0 | — | A |
| DuPont IA | Manufacturing | 0 | — | A |
| DuPont IL | Manufacturing | 0 | — | A |
| DuPont KY | Manufacturing | 0 | — | A |
| Dupont MI | Manufacturing | 0 | — | A |
| DuPont NC | Manufacturing | 0 | — | C |
| DuPont NJ | Manufacturing | 0 | — | A |
| Dupont NY | Manufacturing | 0 | — | A |
| DuPont OH | Manufacturing | 0 | — | A |
| DuPont SC | Manufacturing | 0 | — | A |
| Dupont TN | — | 0 | — | — |
| DuPont VA | — | 0 | — | — |
| DuPont Aviation DE | Transportation & Warehousing | 0 | — | A |
| Dupont Building, Inc. LA | Manufacturing | 0 | — | F |
| DuPont Chestnut Run Plaza DE | Professional & Technical Services | 0 | — | A |
