| Business | Phone |
| Swim Club At Avenel 10001 Oaklyn Dr, Potomac 20854 | (301) 469-7070 |
| Tally Ho Swim Club 8650 Bells Mill Rd, Potomac 20854 | (301) 299-5615 |
| River Falls Community Ctr 7915 Horseshoe Ln, Potomac 20854 | (301) 299-6178 |
| Country Glen Club Inc 10055 Glen Rd, Potomac 20854 | (301) 424-7525 |
| Potomac Swim & Recreation Assn 10531 Oaklyn Dr, Potomac 20854 | (301) 983-0390 |
| East Gate Swim & Tennis Club 10200 Gainsborough Rd, Potomac 20854 | (301) 983-0808 |
| Inverness Recreation Club Inc 10820 Deborah Dr, Potomac 20854 | (301) 983-8813 |