| D'Agostino Supermarkets NY | — | 0 | — | — |
| D'Alesio,Inc. CA | Manufacturing | 0 | — | F |
| D'Allessandro Corp. MA | Construction | 0 | — | F |
| D'Amato Construction Co., Inc. CT | Construction | 0 | — | A |
| D'Amato Conversano, Inc. WA | Professional & Technical Services | 3 | $84,199 | — |
| D'Ambra Construction Corporation TX | Construction | 0 | — | B |
| D'Ambrosio Eye Care, Inc. MA | Healthcare & Social Assistance | 1 | $159,994 | A |
| D'Amico & Sons MN | — | 0 | — | — |
| D'Andrea Bros Concrete Co Inc PA | Construction | 0 | — | F |
| D'Andrea Electric, Inc. FL | Construction | 0 | — | F |
| D'Andrea Visual Communication NV | Manufacturing | 0 | — | F |
| D'Andrea Visual Communications CA | Manufacturing | 0 | — | F |
| D'Annunzio & Sons, Inc NJ | Construction | 0 | — | C |
| D'Annunzio Group Inc. NJ | Construction | 0 | — | F |
| D'Arcy & Harty Construction, Inc CA | Construction | 0 | — | A |
| D'ARRIGO BROS. CO. OF NEW YORK, INC. NY | Wholesale Trade | 0 | — | C |
| D'Arrigo Bros. Co., of CA AZ | Agriculture & Forestry | 0 | — | F |
| D'Arrigo Bros. Co., of California CA | Agriculture & Forestry | 0 | — | F |
| D'Artagnan, INC NJ | Wholesale Trade | 0 | — | F |
| d'ears Inc MN | — | 0 | — | — |
| D'Ella Buick/ GMC/Cadillac NY | Retail Trade | 0 | — | A |
| D'Fine Logistic Services LLC GA | Transportation & Warehousing | 0 | — | F |
| D'Lauro and Rodgers Inc PA | Construction | 0 | — | A |
| D's Road Service Inc CA | Retail Trade | 0 | — | A |
| D'Transport Solution, Inc FL | Administrative & Waste Services | 0 | — | A |
| D+H Construction CA | Construction | 0 | — | A |
| D+H Corporation CA | — | 0 | — | — |
| D+M Metal Products MI | Manufacturing | 0 | — | A |
| d-7 Roofing LLC AZ | Construction | 0 | — | A |
| d-7 Roofing LLC CO | Construction | 0 | — | F |
| d-7 Roofing LLC TX | Construction | 0 | — | F |
| d-7 Roofing LLC UT | Construction | 0 | — | F |
| D-A Lubricant Company Inc. IN | Manufacturing | 0 | — | D |
| D-B Cartage,Inc. IL | Transportation & Warehousing | 0 | — | A |
| D-Electric Incorporated PA | Other Services | 0 | — | D |
| D-Kerns Construction Inc OK | Construction | 0 | — | F |
| D-LINE CONSTRUCTORS, INC CA | Construction | 0 | — | F |
| D-Lux Screen Printing Inc. WI | Manufacturing | 0 | — | F |
| D-M Products Inc. PA | Construction | 0 | — | A |
| d-MATRiX Corporation CA | Professional & Technical Services | 9 | $203,195 | — |
| D-R Pro Emergency Construction Services, Inc. CA | Administrative & Waste Services | 0 | — | A |
| D-R Services, Inc. OH | Healthcare & Social Assistance | 0 | — | F |
| D-Trans LLC FL | Transportation & Warehousing | 0 | — | A |
| D. Andrew Loomis, MD WA | Healthcare & Social Assistance | 0 | — | A |
| D. B. Roberts, Inc. NY | Wholesale Trade | 0 | — | A |
| D. Bertoline & Sons NY | Wholesale Trade | 0 | — | B |
| D. Beyer Associates, Inc. NY | Transportation & Warehousing | 0 | — | D |
| D. Burke Mechanical Corporation CA | Construction | 0 | — | A |
| D. C. Goodman & Sons, Inc. PA | Construction | 0 | — | A |
| D. C. Taylor Co AZ | Construction | 0 | — | A |