- Kingsway Financial
- Kiniseas
- Kinto One: Portal de clientes
- Kinvo: otimize investimentos
- Kirana Pasal
- Kirtland CU Mobile Banking
- Kiru
- KIS Futures
- (Old) KIS MTS
- Kisan Smart
- Kisan Serial Scan App
- Kish Bank
- KISI Mobile
- Kismet Wealth
- Kismet Wealth Vault
- KIT Federal Credit Union
- KitchList
- Zerodha Kite - Trade & Invest
- Kite Financial Wallet
- KITIA Noblesse
- KiTS Mobile App
- Kitsap Bank Smart Rewards
- Kitsap Credit Union
- Kitut's
- KiviERP
- Kivra
- Kivra Suomi
- Kiwe
- Kiwibank Mobile Banking
- HERO Invest Saham & Reksadana
- Kiểm tra phạt nguội Oto
- KJPL
- KKB
- KKBits
- KKP MOBILE: เงินฝาก ลงทุน EDGE
- KKP.ePost
- Klahan
- Klar
- Klasha: Spend globally
- Klassenkasse
- Kleberg Bank Mobile
- Kledo
- KleerCard
- KleverTrade
- KLF-Khoja Leadership Forum
- KLI Boost 360
- Klick2Go
- Klim Sparekasse Mobilbank
- Klinc
- KLK Altın
- Klinc
- KLK Altın
- KLP Mobilbank
- KLSCOOP
- KLSE Homie (Bursa)
- KLSE Screener
- KLSH
- Klu
- Klug Saver
- Kluge Report
- Kluis NOW
- KLV Kreislandvolkverband CLP
- KLV Soforthelfer
- KMA-Krungsri Mobile App
- KME METALLPREISE
- KMLZ
- Kmobimn
- KMoney Transfer
- Knab Bankieren
- KNAX-Taschengeld-App
- KnectXpense
- Knightsbridge
- Knip
- Knobel Steuerberatungs GmbH