| Name | Address, Zip |
| Shore K-9 Search & Rescue Inc | 2677 Park Brown Rd, 19952-5524 |
| Messick Agricultural Museum Inc | 317 Walt Messick Rd, 19952-3300 |
| National Society Of The Daughters Of The American Revolution | 317 Calvin St, 19952-1169 |
| Doggone Happy Animal Rescue Of De Inc | 1328 Gallo Rd, 19952-4460 |
| Gymstarz Gymnastics Parent Association | 911 Killens Pond Rd, 19952-2543 |
| Lake Forest Church Association Inc | Po Box 101, 19952-0101 |
| Community Health Workers Association Of Delaware | 1745 Butler Rd, 19952-2310 |
| Delaware Express Athletic Organization | Po Box 175, 19952-0175 |
| Harrington Youth Athletics | Po Box 54, 19952-0054 |
| Milford Community Band | 1234 Killens Pond Rd, 19952-2725 |
| Make Them Believe Inc | 11 Clarks Cor, 19952-1039 |
| Buccaneer Educational Foundation Inc | 114 Woodview Dr, 19952-1703 |
| Friends Taking Care Of Friends Inc | 15 W Rider Rd, 19952-3322 |
| Poplar Empowerment Community Center | 72 Rachel Dr, 19952-2495 |
| Harrington Senior Center Inc | 102 Fleming St, 19952-1145 |
| Lake Forest Central Elem Ptso | 5424 Killens Pond Rd, 19952 |
| Mid-del Charitable Foundation | 15 W Rider Rd, 19952-3322 |
| W T Chipman Ptso Inc | 101 W Center St, 19952-1050 |
| Mat Ratz Wrestling Club Inc | 105 E Center St, 19952-1105 |
| Delaware Rough Riders Hockey Club | Po Box 161, 19952-0161 |
| Coastal Coon Hunters Club Inc | 743 Fox Hunters Rd, 19952-4148 |
| Harrington Fire Co Inc | 20 Clark St, 19952-1211 |
| Logos Community Development Corporation | 20 Fleming St, 19952-1162 |
| Greater Harrington Community Development Corporation | 27 Clark St, 19952-1244 |
| Delaware Equine Council Foundation Inc | Po Box 114, 19952-0114 |
| U Count | Po Box 5, 19952-0005 |
| County Seat Cruisers | 168 Central Park Dr Harrington De, 19952 |
| First Episcopal District Ministrerial Education Fund Inc | 113 Dorman St, 19952-1001 |
| Footsteps For Maddie | 591 Toby Collins Ln, 19952-5942 |
| Heroes For Hooters | 854 Bloomfield Dr, 19952-1747 |
| Friends Of The Harrington Public Library | 101 Little Mastens Corner Rd, 19952-3294 |
| Greater Life International Ministry Inc | 16953 S Dupont Hwy, 19952-2487 |
| Greater Harrington Historical Society | 108 Fleming St, 19952-1145 |
| Pop Warner Harrington Little Spartans | 114 E Liberty St, 19952-1221 |
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