Organizers
- USTA/ITA National Summer Championships (Indiana University)
- USTA/MAS
- USTA/Mid-Atlantic Section
- USTA/Midwest Section
- USTA/Norcal
- USTA|MAS
- USTA-MT
- USTSA
- USVItennis.com (United States Virgin Islands Tennis)
- UT Tyler Athletics
- Utah Athletic Center
- Utah Bike Racing
- Utah Endurance Events
- Utah Military Academy
- Utah Run
- Utah State Parks and Recreation
- Utah Tech University Softball
- Utah Tennis Association
- Utah Valley Classic
- Utah Valley Marathon
- Utah Women's Basketball Camps
- UTD Sports Limited
- UTE ASO-RPM, UNION TEMPORAL EMPRESAS, LEY 18-82
- Ute Creek Golf Course
- Ute Mountaineer
- Ute Pass Elementary School
- Ute Stampede Fun Run
- Utes Lacrosse Camps, LLC
- UTM Prospect Camps
- UTSA Baseball
- UTSA Softball
- UTSA Triathlon
- UVU Soccer Camps
- UW Health
- UW Madison Police Department
- UWF Explore Summer Camps
- Uwharrie Players
- UW-L Rec Sports
- UW-River Falls Track & Field
- UW-Stout University Recreation
- UWYO NJTL
