Organizers
- U Bar U Camp and Retreat Center
- U CAN 5k
- U.C.C of St. Augustine
- U.S. Elite Volleyball, LLC
- U.S. National Arboretum
- UAB Baseball
- UAB- Equal Access Birmingham
- UBarU Camp and Retreat Center
- UBC Geering Up Applied Science Outreach
- UBC Geering Up Engineering Outreach
- UBC Okanagan Athletics and Recreation Department
- Uber Academic - Summer Day Camp
- UberCamp - Summer Day Camp
- Uberthons
- UBG Cycling CLub
- UBIC
- UC Davis Triathlon Club
- UC Santa Cruz
- UCBearcatVolleyballCamp
- UCCS Recreation and Wellness Center
- UCLA Golf Camp
- UCLA Sports Camps
- UCLA Staff Assembly
- UConn Medical School
- UCP of Sacramento & Northern California
- UCSB Triathlon Team
- UE Youth Programs
- UF SCAVMA
- UF/IFAS Nature Coast Biological Station
- UFIT Urban Fitness Pte Ltd
- UGA Ext FACS
- UGA Insect Zoo
- UGA Soccer Camp
- Ugandan Water Project
- Ugly Sweater Runs
- UIC Athletic Camps
- UIC Soccer Camps
- UIW Athletic Facilities
- UIW Sports and Wellness
- UK Athletics
- UK Athletics - Baseball
- UK Athletics - Cheer
- UK Athletics - Dance
- UK Athletics - Football
- UK Athletics - Gymnastics
- UK Athletics - Men's Basketball
- UK Athletics - Men's Golf
- UK Athletics - Men's Soccer
- UK Athletics - Rifle
- UK Athletics - S&C
