By customer
- Daegu Health College
- Daimler FleetBoard GmbH
- Dal-Tile Corporation
- Danone
- Danske Bank Group
- Danske Fysioterapeuter
- Dar Al-Handasah
- Databalance B.V.
- Datalogix
- DATEV eG
- Davao City
- Dave Beulke and Associates
- Dave Beulke & Associates
- David's Bridal
- Dawn Meats
- DC Water
- Dedicated Computing LLC
- Defense systems integrator
- DekaBank
- Delhi Government
- Delhi International Airport
- Delta Lloyd Group
- Delta Natural Gas
- Deluxe Corporation, Galvin Consulting, Baldor Electric, Florida Hospital, Dave Beulke & Associates
- Denbighshire County Council
- Denbury Resources Inc.
- Department of Clinical Biochemistry at Aarhus University Hospital
- Derby Cycle
- Deutsche Bahn AG
- Deutsche Lufthansa AG
- Deutsche Notes User Group e.V.
- Deutsche Rentenversicherung Knappschaft-Bahn-See
- Deutscher Ring AG
- DHL Express Germany
- DHL Global Forwarding
- Diagnostic Grifols
- Diagram B.V.
- Diasoft
- Dia System
- Digital China
- DigitalGlobe
- Digital Medics GmbH
- Dillard's Department Stores
- DIMAR
- Diners Club Italia - Dinit
- Distica
- DKRZ (Deutsches Klimarechenzentrum)
- DKSH
- DLI Market Intelligence
- DNB ASA
- Dombivli Nagari Sahakari Bank Ltd.
- DONG Energy
- Doosan Infracore
- Dorel Industries
- Douglas Holding AG
- Dow Benelux
- Dow Chemical Company
- Dow Chemical Co.
- Dow Jones & Company
- DP World Southampton
- Dr Pepper Snapple Group
- DTE Energy
- Duke University
- Dutch Cloud BV
- Dutch Financial Services Firm
