- KnowYourCustomer
- Knoxville TVA Employees CU
- Knoxville Utilities Board KUB
- Koalaboox
- Koar Fast Tax Service
- Kobi e-Arşiv Fatura
- Kobiks POS
- KOBIL Trusted Login
- KOBIL Trusted Verify
- KOBIL Trusted Webview
- Kobiri
- KocesPOS
- KodyOrder
- Koehn Mortgage Group
- Koh Samui Real Estate
- Koin: Currency Converter
- KoinKeep
- KoinKoin Exchange
- KOINS Mobile
- Koinstrap: Buy BTC, ETH, SHIB
- KoinWorks Invest Smarter
- Konsiyon
- Kontantkort
- Kontax Contabilidade
- Kontist Business Banking
- Kontor Fyn
- Kontosnap by Kontolink
- KontuaK
- Konversed IR
- Konya Ticaret Borsası
- KoopCep - Koopbank Mobil Şube
- KOO钱包--美国纽交所上市公司旗下品牌
- Kopar Express
- Kopernicus
- Korba
- Korean Currency Converter
- KORTEX FWM
- Kortkompis
- Koru Acentem
- Koru Sigorta
- Koshik