| Kenosha Area Mountain Bike Association | WI | | 0 |
| Kent Land Trust | CT | Kent | 0 |
| Kentucky Mountain Bike Association - Bluegrass | KY | Lexington | 4 |
| Kentucky Mountain Bike Association - Lincoln... | KY | Radcliff | 1 |
| Kentucky Mountain Bike Association - Louisville | KY | Louisville | 5 |
| Kern River Mountain Bike Association | CA | Kernville | 0 |
| Kernersville Cycling Club | NC | Kernersville | 1 |
| Key Peninsula Parks and Rec. Foundation | WA | | 1 |
| Keystone Trails Association | PA | | 0 |
| Kickapoo Mountain Bike Club | IL | Danville | 5 |
| Killington Mountain Bike Club | VT | Killington | 8 |
| Killingworth Land Conservation Trust | CT | Killingworth | 0 |
| Kingdom Trail Association | VT | East Burke | 33 |
| Kinnickinnic Off-Road Cyclists | WI | River Falls | 1 |
| Klamath Trails Alliance | OR | Klamath Falls | 10 |
| Kongscut Land Trust, Inc. | CT | Glastonbury | 0 |
| Kootenai Mountain Riders | MT | Libby | 2 |
| Kosciusko County Velo | IN | Warsaw | 1 |
| Lackawanna State Park Trail Care Crew | PA | Scranton | 6 |
| Laguna Canyon Riders | CA | | 4 |
| Lake Bluff Open Lands Association | IL | Lake Bluff | 0 |
| Lake Chelan Trails Alliance | WA | Chelan | 1 |
| Lake City Trail Alliance | ID | Coeur d'Alene | 7 |
| Lake Country Nordic Ski Club | MN | | 0 |
| Lake County Forest Preserves | IL | Libertyville | 0 |
| Lake Cumberland Trail Foundation | KY | Somerset | 2 |
| Lake Forest Open Lands Association | IL | Lake Forest | 3 |
| Lake Mountain Trails Association | UT | Eagle Mountain | 12 |
| Lake Oroville Bicyclists Organization | CA | | 1 |
| Lake Travis Trail Coalition | TX | Lakeway | 1 |
| Lakeland Area Mountain Bike Organization | WI | | 2 |
| Lakeland Ski Touring Foundation | WI | Minocqua | 0 |
| Lakes Area Mountain Bike Alliance & Trails | MN | Detroit Lakes | 1 |
| Lakeville Cycling Association | MN | Lakeville | 1 |
| Lamoille Valley Rail Trail | VT | Barre | 0 |
| Lampasas Trails | TX | Lampasas | 0 |
| Land Conservation Foundation | IL | Champaign | 0 |
| Land of Umpqua Mountain Bike Riders | OR | Roseburg | 0 |
| Lander Cycling Club | WY | Lander | 5 |
| Lander Nordic Ski Assoc. | WY | Lander | 0 |
| Langlade Area Mountain Bike Association | WI | Elcho | 0 |
| Laurel Highlands On & Off Road Bicycling... | PA | | 0 |
| Lawrence Mountain Bike Club | KS | Lawrence | 2 |
| Leelanau Conservancy | MI | Leland | 1 |
| Levenworth Winter Sports Club | WA | Leavenworth | 0 |
| Lincoln Marsh | IL | Wheaton | 0 |
| Linn Area Mountain Bike Association | IA | Cedar Rapids | 2 |
| Litchfield Land Trust | CT | Litchfield | 0 |
| Little Mountain Trail Builders | WA | Mt. Vernon | 1 |
| Livingston Bicycle Club | MT | Livingston | 3 |
| Logan Mountain Bike Association | WV | Logan | 0 |
| Lombard Park District | IL | Lombard | 0 |
| Lonesome Pine Cycling | VA | Norton | 1 |
| Long Path North Hiking Club | NY | West Fulton | 0 |
| Longview Area Multisport Association | TX | Longview | 0 |
| Longview Bicycle Club | TX | | 3 |
| Los Padres Forest Association | CA | Santa Barbara | 0 |
| Lost River Trails Coalition | WV | | 1 |
| Louisiana Off-Road Cycling Organization | LA | Shreveport | 1 |
| Low Country Fat Tire Freaks | SC | Charleston | 2 |
| Lowelifes Respectable Citizens Club | CA | | 5 |
| Lower Arkansas Mountain Bike Association | CO | Cañon City | 1 |
| Lower Valley Trails Group | CO | | 0 |
| Ludlow Area Sport Trails | VT | Ludlow | 0 |
| Lyme Land Conservation Trust | CT | Lyme | 0 |
| Maah Daah Hey Trail Association | ND | Bismarck | 0 |
| Macomb Area Cycling Mountain Bike Club | IL | Macomb | 0 |
| Mad River Riders | VT | Waitsfield | 23 |
| Mad River Trail Collective | NH | Campton | 0 |
| Mad River Valley Backcountry Coalition | VT | Moretown | 1 |
| Madison Land Conservation Trust | CT | Madison | 0 |
| Magic Valley Trail Machine Association | ID | Twin Falls | 2 |
| Magnolia Bike Club | MA | Gloucester | 1 |
| Maine Appalachian Trail Club | ME | Portland | 0 |
| Maine Appalachian Trail Club | ME | | 0 |
| Malvern Local Build Crew | PA | Malvern | 1 |
| Manchester Essex Conservation Trust | MA | Essex | 1 |
| Manchester Land Conservation Trust | CT | Manchester | 1 |
| Mancos Trails Group | CO | Mancos | 3 |
| Mankato Area Mountain Bikers | MN | Mankato | 7 |
| Maplelag Mountain Bike Trail Association | MN | Callaway | 0 |
| Marin County Bicycle Coalition | CA | | 8 |
| Marinette Area Mountain Bike Association... | WI | Marinette | 0 |
| Mariposa Fat Bike Society | NM | Rio Rancho | 1 |
| Markham Park Trail Building Fund | FL | Sunrise | 4 |
| Marquette BMX | MI | Marquette | 0 |
| Marshfield Area Friends of the Trails | WI | Marshfield | 0 |
| Martha's Vineyard NEMBA Chapter | MA | | 1 |
| Maryland National Capital Park & Planning... | MD | Upper Marlboro | 0 |
| Mass Audubon | MA | Lincoln | 0 |
| Massapoag Trail Association | MA | Tyngsborough | 0 |
| Mattabeseck Audubon Society | CT | Middletown | 0 |
| Maui Mountain Bike Coalition | HI | Pukalani | 0 |
| McCully Heritage Project | IL | Kampsville | 0 |
| McHenry County Conservation District | IL | Woodstock | 0 |
| McMullen Cove Trails Committee | AL | Gurley | 1 |
| Meadow Vista Trail Association | CA | Meadow Vista | 0 |
| Medicine Bow Nordic Association | WY | Laramie | 0 |
| Medicine Wheel Trail Advocates | CO | Colorado Springs | 7 |
| Memphremagog Ski Touring Foundation | VT | Newport | 1 |
| Mena Open Trail Alliance | AR | Mena | 0 |
| Mendocino Coast Cyclists | CA | Fort Bragg | 6 |
| Mendon Mountain Club | VT | Mendon | 0 |
| Merrimack Valley NEMBA | MA | Lowell | 1 |
| Meshomasic Hiking Club | CT | Portland | 0 |
| Methow Valley Sport Trails Association | WA | Winthrop | 2 |
| Metro Mountain Bikers | WI | Milwaukee | 1 |
| Miami Valley Mountain Bike Association | OH | Dayton | 2 |
| Michigan Snowmobile and ORV Association | MI | Wyoming | 0 |
| Michigan's Edge Mountain Biking Association | MI | Muskegon | 4 |
| Mid Indiana Trails | IN | Muncie | 1 |
| Mid-Atlantic Off Road Enthusiasts (MORE) | VA | Fairfax | 22 |
| Mid-Hudson Adirondack Mountain Club | NY | Poughkeepsie | 0 |
| Mid-Michigan Mountain Biking Association (MMMBA) | MI | Lansing | 4 |
| Mid-Minnesota Cycling Club | MN | Saint Cloud | 0 |
| Mid-South Trails Association | TN | Memphis | 1 |
| Midcoast Conservancy | ME | Edgecomb | 0 |
| Midcoast Maine NEMBA Chapter | ME | Rock Port | 1 |
| Middlebury Area Land Trust | VT | Middlebury | 0 |
| Middlesex Land Trust | CT | Middletown | 1 |
| Midlands SORBA | SC | Columbia | 4 |
| Midpeninsula Regional Open Space District | CA | Los Altos | 2 |
| Midwest Trail Builders Coalition | MO | Cape Girardeau | 1 |
| Milaca Trails Initiative | MN | Milaca | 2 |
| Minneapolis Bike Parks | MN | Minneapolis | 0 |
| Minnesota Nordic Ski Association | MN | Saint Cloud | 0 |
| Minnesota Off-Road Cyclists | MN | Minneapolis | 18 |
| Missouri Department of Conservation | MO | | 0 |
| Missouri Off-Road Cyclists | MO | Springfield | 10 |
| Moab Mountain Bike Association | UT | Moab | 4 |
| Moab Trail Mix | UT | Moab | 8 |
| Moab Trails Alliance | UT | Moab | 3 |
| MOB Mountain Bike Club | AP | Guam | 0 |
| Mohawk Hudson Land Conservancy | NY | Delmar | 0 |
| Mohican Malabar Bike Club | OH | Loudonville | 3 |
| Mohonk Preserve | NY | New Paltz | 0 |
| Monadnock-Sunapee Greenway Trail Club | NH | Dublin | 0 |
| Montana Bicycle Guild | MT | Helena | 21 |
| Montana Mountain Bike Alliance | MT | | 4 |
| Monterey Off Road Cycling Association | CA | Monterey | 5 |
| Montpelier Area Mountain Bike Association | VT | Montpelier | 2 |
| Moon Lake Trail Crew | PA | Wilkes-Barre | 0 |
| Morgantown Area Mountain Bike Alliance | WV | Morgantown | 3 |
| Morris Park Alliance | NJ | Morristown | 0 |
| Moscow Area Mountain Bike Association | ID | Moscow | 6 |
| Mother Lode Trail Stewardship | CA | Placerville | 4 |
| Motor City Mountain Biking Association | MI | Detroit | 6 |
| Motorcycle Trail Riding Association | CO | Grand Junction | 0 |
| Mount Agamenticus Trail Association | ME | York | 6 |
| Mount Rogers Appalachian Trail Club | VA | Damascus | 0 |
| Mount Shasta Mountain Bike Association | CA | Mount Shasta | 16 |
| Mount Shasta Trail Association | CA | Mount Shasta | 0 |
| Mount Sopris Nordic Council | CO | | 0 |
| Mount Vernon Trail Builders | WA | Mt. Vernon | 2 |
| Mount Wilson Bicycling Association | CA | | 12 |
| Mountain Bike Association of Arizona | AZ | | 13 |
| Mountain Bike Club of the Wichitas | OK | Lawton | 1 |
| Mountain Bike Idaho | ID | | 3 |
| Mountain Bike Lafayette | LA | Lafayette | 3 |
| Mountain Bike the Tetons | ID | Driggs | 7 |
| Mountain Club of Maryland | MD | West Friendship | 0 |
| Mountain State Trail Alliance | WV | Fayetteville | 1 |
| Mountain Top Resort Cross Country Ski and... | VT | Chittenden | 0 |
| Mountain Trails Foundation | UT | Park City | 8 |
| MSFits MTB | MS | Biloxi | 0 |
| Mt. Abram Bike Park | ME | Greenwood | 1 |
| Mt. Zion Bike Trails | MS | Brookhaven | 0 |
| MTB Atlanta | GA | Atlanta | 2 |
| MTB Missoula | MT | Missoula | 16 |
| Munising Bay Trail Network | MI | Munising | 3 |
| Muscle Powered | NV | Carson City | 2 |
| MVD Mountain Bikers | MD | | 5 |
| Myrtle Beach Area Mountain Biking Association... | SC | Myrtle Beach | 2 |
| Nantahala Area SORBA | NC | Bryson City | 3 |
| Nantahala Hiking Club | NC | Franklin | 1 |
| Naperville Park District | IL | Naperville | 0 |
| National Park Service - North Country Scenic Trail | MI | Lowell | 0 |
| Natural Bridge Appalachian Trail Club | VA | Lynchburg | 0 |
| Natural Lands Institute | IL | Rockford | 0 |
| Nederland Area Trails Organization | CO | Nederland | 5 |
| Neillsville Area Trail Association | WI | Neillsville | 1 |
| Nevada Department of Conservation and Natural... | NV | Carson City | 0 |
| New England Mountain Bike Association (NEMBA) | MA | Acton | 89 |
| New England Trail Rider Association | MA | | 0 |
| New Hampshire State Parks | NH | Concord | 1 |
| New Hartford Land Trust | CT | New Hartford | 0 |
| New Jersey Audubon | NJ | | 0 |
| New Jersey Conservation Foundation | NJ | Far Hills | 0 |
| New Jersey Fish and Wildlife | NJ | Trenton | 0 |
| New Jersey Natural Lands Trust | NJ | Trenton | 0 |
| New Jersey Trails Association | NJ | | 0 |
| New Marlborough Land Trust | MA | New Marlborough | 0 |
| New Orleans Metro Area Mountain Bike Organization | LA | New Orleans | 4 |
| New River Gorge Trail Alliance | WV | Fayetteville | 0 |
| New River Valley Bicycle Association | VA | Blacksburg | 1 |
| New York City Mountain Bike Association | NY | New York | 10 |
| New York Parks, Recreation and Historic... | NY | Albany | 0 |
| New York-New Jersey Trail Conference | NJ | Mahwah | 1 |
| Newport Recreation Department - Team Pinnacle | NH | Newport | 0 |
| Newport Trail Stewards | OR | Newport | 6 |