- Kozu books
- Kodansha Comics
- Krop
- Kommunicate
- KidsPark
- King Servers
- King of App
- Kotobee
- Kaleidoscope App
- Konica Minolta
- KD College Prep
- Koldwater
- Koya Leadership Partners
- Katie Roberts Career Consulting
- KF Advance
- KPI Software
- Kruze Consulting
- KMS Lighthouse
- Kipwise
- KnowledgeOwl
- Kepler's
- Kidlogger
- Komprise
- KFBUY
- Koibird
- Kingdom Come
- Kiindred
- Knowledge Anywhere
- Kalmbach
- Keen-io
- Kudos
- Kratikal
- Kentucky Lottery
- Kansas Lottery
- KeyReply
- KBMax
- Kiddom
- Kevin Anderson & Associates
- Kudos Now
- Kinzaa
- Kaleido
- Kap
- KidsEmail.org
- Kashoo
- KPMG Spark
- Kreato CRM
- Keene Sentinel
- Knowmax
- Kassu
- Klaus Rondot
- Kidslox
- Kenaz Design
- Konexus
- König & Meyer
- Katie's Stores
- Kohezion
- Kesaronline.com
- KinaExpressen
- Kelly Madison Store
- Kanjishopping
- Kegbot
- KTools Software
- Kanine Records
- Kofiin Kats
- Kinetica
- Knowledge Net
- Kitchen Assistant Network
- Krazy Glue
- Kadochnikov System
- KOEL Magazine
- Kachelle Kelly
- Kalabox
- Ketchapp Games
- Kin HR
- KiwiHR
- Kitsch-bent
- Kids Reveal Book Box
- Kaldi
- Kid's Candor
- Kid Basix