- U Fit
- U Fit Studio
- U Golf
- U Mobile GPS & IoT
- U of Chew
- U Pilates Studio
- U Time Fitness Hong Kong
- U Time Fitness Thailand
- U TRAINING CLUB
- U-HEALTH
- U-Hunt
- U-M Recreational Sports
- U-Prevent
- U-REALM
- U-REALM otto
- U-Save-It Pharmacy
- U-Scale
- U-StanD - Workout Body Control
- U-TEST
- U.S. AKADEMİ
- U.S. Kids Golf Player Pathway
- U.S. Martial Arts Center
- U.S. Military Cadences Audio
- U.S. Taekwondo Center
- U4Ea
- U52NOW
- UAB Medicine
- UAB Medicine Transplant
- UAE RADR
- UAF Nanook Recreation
- UALR Campus Rec
- Ualright
- UB Sport&Fitness
- UBA Cosmetics
- UBA NEBRASKA
- UbabyCloud
- Uberzoot Hair Co
- UBFA
- UBFit - Fitness Delivered
- UbiVision Visual Acuity
- Ubjective: resolutions tracker
- UBT Escalada
- UBX Member App
- UC Davis Recreation
- UC San Diego Recreation
- UC Santa Cruz Slugs
- UCA Wellbeing App
- Ucara 優家樂
- Ucara 照護夥伴
- Ucardia
- UCare Health is now ThriweCare
- UCCS Campus Recreation
- UCD APP Fellow
- UCF Rec & Wellness Center
- UCH Burn Consult
- Uchimizu de GO!
- UCI Anti-Cancer Challenge
- UCI Campus Rec
- UCLA Health
- UCLA Mindful
- UCLA Neurosurgery
- UCLA Psych
- UCLA Recreation
- UConn Rec
- UCRSRC
- UCS 2021
- UCS Saúde Digital
- UCSDCC Mobile app
- UCSF Eureka Research
- UD Mediversity
- UDAR
- UDC - Unison Dance Center