Organizers
- The Torch Challenge
- The Tot Space
- The Toughest Mile LLC
- The Town School
- The Township of North Dundas
- The Traditions Golf Club at Stonehouse
- The Trail Run Co.
- The Training Wing
- The Tree House Child Assessment Center of Montgomery County
- The Tree House Episcopal Montessori School
- The Troll Hole Art Emporium
- The Troll Run
- The Trustees of Reservations
- The Ty Louis Campbell Foundation
- The U'ilani Fund
- The Ultimate 250 College Cheer Combine
- The Ultimate College Cheer and Dance Combine Powered By Under Armour
- The Ultimate Wine Run
- The Ultimate Wine Run San Diego
- The Unbattle Project
- The Unhurried Woman, LLC
- The University of Pennsylvania Band
- The University Of York
- The Urban Village
- The Vanguard School
- The Vecna Cares Charitable Trust
- The Veterans' Program
- The View Community Center
- The Viking Challenge
- The Village Camp
- the Village Presbyterian Church
- The Villages Youth Sports Club
- The Vineyard at Florence
- The Vitality Lifestyle
- The Volleyball Camp at Harvard
- The Wahine Project
- The Waldorf School of Atlanta
- The Wallis Annenberg Center for the Performing Arts
- The Warriors Canvas & Veterans Art Center
- The Washington Ballet
- The Waterfront Challenge LLC
- The Watermelon Crawl 5k
- The Wave Day Camp
- The WC Company
- The Well Community Church
- The Wellness Center
- The Westwood Gentlemen's Running Club
- The White Gala
- The Wild Wine Run
- The Wilderness at Fortune Bay
