- Kr Kids: Stilllen tracker
- KraftApp für Kieser-Training
- Kraftclub Reinecke
- KRAFTVOLL Gesundheitsprogramme
- Krankenkassen Schweiz
- Kras Sport
- Kratos Fit
- Kratos Kegel for Men's Health
- KRATOS THE GYM
- Krav Maga Center By Kickyoufit
- DFW Combat Co
- Krav Maga Pro
- Krav Maga Training Academy
- Krav Maga Worldwide, Inc.
- Krav Oz
- KRAVolution
- Krazy Fit
- KRCS
- Kreal eClimber
- Kreation Hairdressing
- Kreation Hairdressing
- KrebsHILFE
- Krebskranke Kinder Mainz
- KRehab
- Kreisreiterverband Uelzen
- KREW for Concept2
- Kris' Hot Yoga
- Krisen Kompass
- Kristi's Academy of Dance
- Kristina Earnest
- KRIYA Booking App
- KriyaTimer
- KriyaTimer Pro
- KROC Center - Green Bay
- Krocfit
- Kroftstodl - Mitglieder-App
- Krook
- KROWN FITNESS
- KRU Active