| New Jersey Mountain Bike Club | | Club |
| Western New York Mountain Bike Association | | Club |
| Tuff Riders Mountain Bike Club | Los Alamos | Club |
| Triangle Off-road Cyclists (TORC) | Raleigh / Durham / Chapel Hill | Club |
| Ohio Mountain Bike Association | | Club |
| Oklahoma Earthbike Fellowship | | Club |
| Bonneville Cycling Club | Bonneville | Club |
| Stowe Mountain Bike Club | Stowe | Club |
| Evergreen Mountain Bike Alliance | Pacific Northwest | Club |
| Wisconsin Off-road Bicycle Association | | Club |
| Cycling Association of Star Valley | Star Valley | Club |
| Airbourne Mountain Bike Club | Stuart, FL | Club |
| Vermont Mountain Bike Association | | Club |
| Rocky Mountain Bicycle Boys | Denver | Club |
| River Valley Mountain Bike Association | Groups in Parkersburg, WV and Marietta, OH | Club |
| West Virginia Mountain Bike Association | Active in WV, OH, and VA | Club |
| River Valley Mountain Bike Association | Marietta, OH | Club |
| Philadelphia Mountain Bike Association | Philadelphia | Club |
| SORBA CSRA | Central Savannah River Area (Augusta) | Club |
| Club Mud | Ft. Lauderdale Area | Club |
| BAADR Mountain Bike Club | Tampa Bay | Club |
| Penn State Cycling Club | | Club |
| International Christian Cycling Club (IC3) Colorado | | Club |
| Rage Mountain Bike Club | Boston | Club |
| Tunica Trail Riders | | Club |
