| Name | Deductibility Code |
| Agape Temple International Ministries Inc. | -- |
| Dover Miracle Revival Center | -- |
| First Episcopal District Ministrerial Education Fund Inc. | -- |
| Friends of the Harrington Public Library | -- |
| Greater Harrington Historical Society | -- |
| Harrington Fire Co Inc. | 6 |
| Harrington Senior Center Inc. | -- |
| Lake Forest Church Association Inc. | -- |
| Messick Agricultural Museum Inc. | 4 |
| Mid-Del Charitable Foundation | 4 |
| Milford Community Band | -- |
| Purr-Fect Haven Cat Rescue | -- |
| Shore K-9 Search & Rescue Inc. | -- |
| The Harrington High School Alumni Association Scholarship Char Trust | -- |
| Word Alive Family Worship Center Ministries Inc. | -- |