| CAMBA TN | Clarksville | Club |
| CAMP-SORBA | Central Alabama | Club |
| Canon City Crank Pedalers | Canon City | Club |
| Cape Cod NEMBA | Cape Cod | Club |
| Cape Fear SORBA | Cape Fear | Club |
| Capital Bicycling Club | Olympia | Club |
| Capitol Off Road Pathfinders (CORP) | Madison | Club |
| Carol County Ozark Off-Road Cyclists (CCRIDERS) | Eureka Springs | Club |
| Carrabassett Region NEMBA | Carrabassett Valley | Club |
| Castle Rock BOMB | Castle Rock | Club |
| Catawba Valley Heritage Alliance (CVHA) | Newton | Club |
| Cedar Valley Assoc for Soft Trails (CVAST) | Cedar Falls | Club |
| Cental Illinois Mountain Bike Asscoiation (CIMBA) | Decatur | Club |
| Central Arkansas Recreational Pedalers (CARP) | Little Rock | Club |
| Central Arkansas Trail Alliance | Central Arkansas | Club |
| Central California Off Road Cyclists (CCORC) | Fresno | Club |
| Central Coast Concerned Mountain Bikers (CCCMB) | Cayucos | Club |
| Central Idaho Mountain Bike Association (CIMBA) | McCall | Club |
| Central Indiana Bicycle Assoc (CIBA) | Indianapolis | Club |
| Central Iowa Trail Association (CITA) | Des Moines | Club |
| Central Kansas Mountain Bike Club (CKMBC) | Lindsborg | Club |
| Central Maine NEMBA | Waterville | Club |
| Central Michigan Mountain Bike Association | Mt Pleasant | Club |
| Central Ohio Mountain biking Organization (COMBO) | Delaware | Club |
| Central Oregon Trail Alliance (COTA) | Bend | Club |
