Organizers
- The Courses at Watters Creek
- The Courts of NWI
- The Craig OHern Golf School
- The Crazy Wine Dash
- The Creative GRP, LLC
- The Creek at Hard Labor Golf Course
- The Crescent Beach Swimming Club
- The Crossings GC
- The Crunch
- The Culkin School of Traditional Irish Dance
- The Cycling Association of Hong Kong, China Ltd
- The Daily News Press Run
- The Dam Marathon
- The Damion Gosa Memorial Foundation
- The Dance Mile
- THE DANCE SESSIONS
- The Darth Dash 5K & 0.5K Detour
- The Dave Krache Foundation
- The David Sheldrick Wildlife Trust
- The Dawg Cage
- The Dennis P. McHugh Foundation
- The Derek Sheely Foundation
- The Derryfield School
- The Dhaba
- The Diabetes Camp of West Virginia
- The Diabetes Ride/Hodia.org
- The Digital Arts Experience
- The Dirty Rotten Scramble
- The Discovery School
- The Diversity Center
- The DONNA Foundation, Inc
- The Dublin Boot Camp/Running Coaching
- The Dugout of Boerne
- The Dunes Golf and Beach Club
- The Edgar May Health and Recreation Center
- The Education Station
- The Elephant's Perch
- The Eli Kennedy Foundation
- The Ella Grace Race to end PKD (Polycystic Kidney Disease)
- The Ellison School
- The Empowered Athlete, LLC
- The Endurance Factory
- The Enduro Network- Asia
- The Energy City Half Marathon
- The Episcopal Church in Colorado
- The Episcopal Diocese of Virginia
- The Ethan Foundation
- The Events Group
- The Evergreen School
- The Evergreen State College
