By client
- Kaji Metal Industries
- Kantana Animation Studios
- Kanton Basel-Stadt (Canton of Basel City)
- Kaplan
- Karviná City
- Kasturi and Sons (The Hindu)
- Katorg
- KaVo
- kdg mediatech AG
- KDZ (Kommunale Datenzentrale Mainz)
- KDZ Wiesbaden
- KEB
- Kela
- Kelley Blue Book
- Kemofarmacija d.d.
- Kenco
- Kent & Medway Health Informatics Service
- Kepak Convenience Foods
- Kerakoll
- Kettle Foods
- Keyera
- KIBAG
- Kiddicare
- Kilmarnock Prison
- Kimimpex Trade & Leasing Ltd
- King Fahd University of Petroleum and Minerals
- Kingland Systems
- King’s College London
- Kinh Do Corporation
- KJO
- Kliniken des Landkreises Lörrach
- Klinikum Chemnitz
- Knauber Group
- Knauf
- KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH
- Knoxville Utilities Board
- KOMBIT A/S
- Kommunale Datenverarbeitung Region Stuttgart Zweckverband / Rechenzentrum Region Stuttgart GmbH
- Kommunalen Rechenzentrum Niederrhein (KRZN)
- KONE
- Kookmin Bank
- Korea Exchange Bank
- Korea Expressway Corporation
- Korean Credit Card Company
- Kotak Mahindra Bank Ltd.
- Koyou Lease Co., Ltd.
- KPN
- KPT/CPT
- Kraft Australia
- Kraft Foods Australia
- Kraft Foods
- Kriminalistisch-Kriminologische Forschungsstelle
- Krungthai Panich Insurance
- KTH – Royal Institute of Technology
- KTM Sportmotorcycle AG
- KÖTTER Services (Kotter)
- Kunert AG
- Kurimoto, Ltd.
- Kwik-Fit Europe B.V.
- Kyocera Mita Corporation
- Kyocera Mita