Organizers
- Union City Leisure Services
- Union College
- Union County QB Club
- Union County Youth League
- Union Girls Softball Club
- Union Mission Ministries Inc
- Union Pizza & Brew CO
- Union Station Homeless Services
- UNION Volleyball Club
- Union Youth Association
- Uniontown Bible Church
- Unique Soccer Academy
- United Ballers Youth Sports
- United Brachial Plexus Network
- United Christian Academy
- United Counseling Service
- UNITED FASTPITCH ORG
- United Hillandalers Challenge
- United Soccer Coaching
- United Softball Association
- United Southern Girls Faspitch
- United Southern Girls Fasptich
- United Southern Girls Fastpitch
- United Sports
- United States Adaptive Golf Alliance
- United States and Canadian Academy of Pathology
- United States Fastpitch Association
- United States Naval Sea Cadet Corps - Pacific Southwest Region 11
- United States Navy
- United States of America Cricket Association
- United States Powerlifting Association
- United States Powerlifting Federation-TX
- United States Synchronized Swimming, Inc.
- United States Tennis Association - Pacific Northwest
- United Veterans of Bridesburg Parade Organization
- United Way
- United Way Of Bartow County
- United Way of Chelan & Douglas Counties
- United Way of Gordon County
- United Way of Greater Atlanta
- United Way of Iredell County
- United Way of Lapeer County
- United Way of Mahaska County
- United Way of Marion County
- United Way of McPherson County
- UnitedHealthcare Children's Foundation
- Uniting Voices Chicago
- Unity Learning Network
- Univ. Nevada, Las Vegas / PGM
- Universal Soccer & Futsal Academy
