| Name | Address, Zip |
| William Sampson Brooks High School Alumni Association Incorpra | 7580 Independence Cir, 20622-3326 |
| Southern Maryland Intergroup Association Incorporated | Po Box 767, 20622-0767 |
| United States Basic Skills Investment Corporation | Po Box 219, 20622-0219 |
| St Marys County Public School Building Trades Foundation Inc | 37980 Seneca Ct, 20622-3141 |
| Transitional Support Services Cdc | 13522 Shrewsbury Ct, 20622-3493 |
| Charles County Maryland Genealogical Society | 13200 Budds Creek Rd, 20622-3721 |
| Charlotte Hall Rotary Foundation Inc | Po Box 681, 20622-0681 |
| Church Without Walls Outreach Ministries Inc | Po Box 488, 20622-0488 |
| Community Foundation Of Southern Maryland | Po Box 716, 20622-0716 |
| Corina Higginson Trust | 8346 Roundhill Rd, 20622-3443 |
| Walden Sierra Corporation | 30007 Business Center Dr, 20622-3101 |
| Cruisin Southern Maryland Inc | 29971 Business Center Dr, 20622-3165 |
| Elite Registry Of Working Dogs Inc | 14655 Charles St, 20622-3452 |
| Tears Of The Fruit Inc | 29948 Three Notch Rd, 20622-9998 |
| Jamaica Missions Inc | 15095 Oaks Rd, 20622-3312 |
| Laplata Os | 9401 Whisper Ct, 20622-4638 |
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