| Name | Address | Phone |
| D&J Manufacturing | 1302 Holloway | 419-865-2552 |
| D&L Trucking | 1226 S. McCord Rd. | 419-867-8785 |
| D'Ann Enterprises | 1049 S. McCord Rd. | 419-866-9844 |
| Dennis Company | 942 Holland Park Blvd | 419-861-2554 |
| Dia Spa & Salon | 1007 S. McCord | 419-866-1400 |
| Diversified Truck & Auto | 6720 Spectrum | 419-861-4300 |
| Doyle Manufacturing | 1440 Holloway Rd. | 419-865-8441 |
| DRS Industries | 1067 Hamilton Dr. | 419-861-0334 |
| Dura Temp | 949 S. McCord Rd | 419-866-4348 |