| Name | Address, Zip |
| American Legion Post 74 Billy Earl Hales | 120 Circular Dr, 39114-4854 |
| Simpson County Academy Pto | 124 Academy Cir, 39114-5708 |
| Simpson County Academy Alumni Association | 124 Academy Cir, 39114-5708 |
| Free & Accepted Masons Of Mississippi | 310 Elm St, 39114-3542 |
| Free & Accepted Masons Of Mississippi | 869 Campbells Creek Rd, 39114-4484 |
| Angel Wings Out-reach Center | Po Box 787, 39114-0787 |
| New Jerusalem Apostolic Church | 2626 Simpson Highway 49, 39114-6220 |
| Ark Of Ms Inc | 207 Hayman Lake Rd, 39114-8940 |
| Merit Cemetery Association Inc | 271 Wilson Welch Rd, 39114-4815 |
| Old Good Hope Cemetery Association | 501 Oak St, 39114-3405 |
| Vfw Auxiliary Department Of Mississippi | 2472 Simpson Highway 49, 39114-6182 |
| First Baptist Church | 301 East St, 39114-3507 |
| Zeta Phi Beta Sorority | 172 Authur Williams Road, 39114 |
| Beta Eta Eta Chapter Of Chi Eta Phi Sorority Incorporated | Po Box 233, 39114-0233 |
| Farm Bureau Federation Mississippi | Po Box 428, 39114-0428 |
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| Carpenters For Christ Se Inc | 108 Tiger Dr, 39114-8963 |
| Third Generation Carter Foundation | 109 Willie Carter Dr, 39114-5503 |
| Mendenhall Cemeteries Inc | Po Box 838, 39114-0838 |
| Grubbs Cemetery Inc | Po Box 218, 39114-0218 |
| Center For Pregnancy Choices Of Simpson County Inc | Po Box 576, 39114-0576 |
| Central Mississippi Trauma Region | Po Box 562, 39114-0562 |
| Life Changes Therapeupetic Home For Children | 208 Gregory Rankin Road, 39114-5847 |
| Nazareth Church Community Ministry Inc | Po Box 365, 39114-0365 |
| Rials Creek Church | 185 Rials Creek Rd, 39114-6047 |
| Community Fellowship Ministries Inc | Po Box 825, 39114-0825 |
| Simpson County Community Foundation Inc | Po Box 654, 39114-0654 |
| Lighthouse Community Development Ii | 122 Main St N, 39114-3600 |
| United Community Development Outreach Inc | 403 Hawpond Church Rd, 39114-5080 |
| Lamb Of God Community Inc | 120 Circular Dr, 39114-4854 |
| Simpson Community Healthcare Inc | 1842 Simpson Highway 149, 39114-3438 |
| Sons Of Confederate Veterans Inc | 1215 Main St S, 39114-6070 |
| Simpson County Sheriffs Department Reserve Unit | 1496 Simpson Highway 149, 39114-3434 |
| Simpson County Development Foundation | Po Box 127, 39114-0127 |
| Mississippi Scholars Simpson County | Po Box 154, 39114-0154 |
| Delta Kappa Gamma Society International | 2541 Simpson Highway 13, 39114-4306 |
| Veterans Of Foreign Wars Of The United States Dept Of Mississippi | 2472 Simpson Highway 49, 39114-6182 |
| Mendenhall Elementary Pto | 814 East St, 39114-3104 |
| His Holy Word Ministries Florida | Po Box 744, 39114-0744 |
| Wallstomp Foundation | 131 Wallace Hill Dr, 39114-4478 |
| Lillie Hardy Foundation | 1456 Simpson Highway 149, 39114-3565 |
| Wendell Walker Foundation Inc | 107 R J Walker Dr, 39114-5094 |
| Friends Of Mississippi Libraries Inc | 1630 Simpson Highway 149, 39114-3430 |
| Sigma Gamma Rho Sorority Inc | Po Box 13, 39114-0013 |
| Means Of Grace | 260 Calhoun Rd, 39114-9120 |
| Mississippi Homemaker Volunteers Inc | 2785 Simpson Highway 49, 39114-5420 |
| Son Solar Inc | Po Box 762, 39114-0762 |
| Mendenhall Ministries Inc | Po Box 368, 39114-0368 |
| Woodmen Of The World Life Insurance Society | 196 Charlie James Rd, 39114-5481 |
| Katinas Klassroom | 122 Willie Carter Dr, 39114-5910 |
| Kristys Trail Ride | 234 New Home Rd, 39114-8937 |
| Pound Puppy Rescue Ms | 177 A D Mclendon Rd, 39114-5205 |
| One Ten Vision | 141 Blackwell Rd, 39114-5912 |
| Save Our Strays | Po Box 481, 39114-0481 |
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