The Maumee Valley Wheelmen is a premier bicycle racing club in Northwest Ohio, established in 1969. Affiliated with USA Cycling, the club organizes USAC-sanctioned club races every Tuesday evening from mid-April to mid-September, in addition to year-round training and social rides. The club is focused on promoting competitive cycling and camaraderie among its members.

The Mello Velo Cycling Club is a diverse group of people in Central Arkansas who love riding bikes together. Formed in 2009, the club hosts three organized rides per week from March to November, catering to all pace and skill levels. They focus on community, welcoming all new members with the only criteria being "COME RIDE WITH US!".

The Mid-Valley Bicycle Club (MVBC) is a non-profit 501(c)(4) organization founded in 1974, centered in Corvallis, Oregon. The club promotes general interest in cycling through education, safety, transportation, and recreation, offering weekly rides and multi-day tours for all ages and abilities. Net proceeds from events fund bicycle education and safety programs in local school districts.

The Mid Hudson Bicycle Club (MHBC) is a recreational cycling club established in 1966, dedicated to promoting and enhancing the enjoyment of cycling throughout the scenic Mid-Hudson Valley region of New York. The club is open to all skill levels, from beginners to experts, and focuses on providing safe, pleasant opportunities to ride. MHBC organizes a robust calendar of events, posting over 400 rides annually, along with various activities and informational programs for its members. Membership includes benefits such as club insurance and discounts at local and online establishments. The club is a central hub for the local cycling community.

The Missoula Bicycle Club (MBC) is a member-based 501(c)3 nonprofit organization established in 1976 to promote safe bicycling for the benefit of all interested in the rewards offered by participation in club activities in the Missoula area. The club organizes rides, promotes cycling, and serves bicyclists in Western Montana.

The Mohawk Hudson Cycling Club (MHCC) is a large, non-profit cycling organization based in the Capital District area of eastern New York State, including Albany, Troy, and Schenectady. Founded in 1969, the club boasts over 600 members and is dedicated to promoting cycling for all ages and abilities. MHCC sponsors over 300 road and gravel bike rides annually, catering to a wide range of paces from casual to sport. The club emphasizes safety, requiring helmets on all rides, and offers a welcoming environment for both new and experienced cyclists. Membership is $20 per year and includes insurance coverage for club rides. MHCC is actively involved in the community, hosting charity events like the annual Gravel Goblin ride to benefit organizations such as the Regional Food Bank of NENY.

The MSU Cycling Club is dedicated to cultivating a vibrant community for collegiate cyclists to ride, race, and forge connections. Its mission is to establish an inclusive environment where individuals of all skill levels can experience the joy of cycling and embrace new challenges, whether it's their first ride or their hundredth. As part of Montana State University's rich outdoor culture, the club actively promotes and expands opportunities for those passionate about cycling, contributing to the university's legacy of outdoor pursuits.

Morgantown Area Mountain Bike Alliance, Inc. (MAMBA) is a 501(c)(3) non-profit organization and a local chapter of the International Mountain Bike Association (IMBA). It is dedicated to building and supporting the future of mountain biking in the Greater Morgantown Area, promoting access, and fostering integrated trail networks. The alliance works to encourage collaboration between trail user groups, land managers, and the business community.

Mount Diablo Cyclists is a non-profit advocacy group established in 2014 with the mission to improve safety for cyclists and motorists on the roads of Mount Diablo. The group successfully raised funds for and installed 67 "Bike Turnouts" on the mountain, which have been shown to reduce bike vs. vehicle collisions by over 80%. The organization is dedicated to continuing its efforts to make the park safer for all visitors.

The MS 150 Houston to Austin is the popular name for the Bike MS: ACC Texas MS 150, a legendary two-day fundraising cycling event organized by the National MS Society. It is the largest fundraising event in the Bike MS series, with routes starting in Houston and Austin and finishing at Texas A&M University in College Station. The event raises funds and awareness to help end multiple sclerosis forever.

Founded in 1936, the New York Cycle Club (NYCC) is the largest recreational cycling club in the New York area, boasting nearly 3,000 members. It is a member-owned and 100% volunteer-run organization dedicated to promoting bicycling for recreation, transportation, fitness, and health. NYCC offers a wide variety of group rides every week, catering to all skill levels from gentle C-rides for newcomers to fast A-rides requiring paceline skills. The club also runs nationally-recognized training programs like the Spring Training Series (SIG/STS), hosts weekend excursions, and organizes special events like the annual Escape New York ride. Membership provides access to a vibrant cycling community, organized rides, and discounts at local bike shops.

The North Carolina Bicycle Club (NCBC) is a 501(c)(4) non-profit organization dedicated to promoting bicycling through recreational, utilitarian, and competitive activities. It focuses on educating members about safety and encouraging adherence to motor vehicle laws while supporting regional bike events and local philanthropies.

The Northern California Nevada Cycling Association (NCNCA) is the official local association of USA Cycling for Northern California and Northern Nevada. It is a non-profit organization that promotes and governs competitive cycling events, including road, track, and cyclocross races, and supports local clubs and junior development.