| Name | Address, Zip |
| Green Hornets Boys Lacrosse 2035 Select | 104 Hatton Dr, 21146-4434 |
| International Catalina 27-270 Association | 106 Riggs Ave, 21146-4420 |
| Monumental Life Alumni Association | 571 Arundel Dr, 21146-2601 |
| Amateur Athletic Union Of The United States Inc | 547 Oak Ln, 21146-2645 |
| Baltimore Area Boardsailing Association Inc | 124 Bay Park Way, 21146-4643 |
| Elvaton Recreation Association Inc | Po Box 918, 21146-0918 |
| Severna Park Swimming Association Inc | 623 Baltimore Annapolis Blvd, 21146-3941 |
| Maryland Interscholastic Athletic Association Inc | Po Box 606, 21146-0606 |
| East Coast Outrigger Racing Association Inc | 207 Woodlach Ln, 21146-4112 |
| Haven At Star Lake Inc | 287 Bowline Rd, 21146-3313 |
| Back Creek Yacht Club Inc | 357 South Dr, 21146-2119 |
| Treble Harmony Brigade Inc | 495 Eastwood Ct, 21146-1709 |
| International R-c Warship Combat Club Inc | 106 Severn Ave, 21146-4838 |
| Woods Community Center Inc | 623 Baltimore Annapolis Blvd, 21146-3941 |
| Greater Severna Park Mothers Club Inc | Po Box 321, 21146-0321 |
| Severn River Rugby Club Inc | 596 Tower Bank Ct, 21146-3509 |
| Kinder Farm Disc Golf Co | 628 Thomas Way, 21146-2832 |
| Washington College Mens Soccer | 7 Giddings Ave, 21146-3307 |
| Layout Design Special Interest Group Inc | 513 Heavitree Ln, 21146-1010 |
| Evergreen Swim Team Inc | 154 W Earleigh Heights Rd, 21146-1602 |
| Heros Lacrosse Inc | Po Box 852, 21146-0852 |
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