IBM WCC
- Customer data integration (CDI) solution. Formerly DWL.
- http://www-306.ibm.com/software/data/masterdata/customer/

VisionWare plc
- Customer data integration (CDI) hub provider with a focus on the public sector. Based in Scotland.
- http://www.visionwareplc.com/

Oracle Siebel Universal Customer Master
- Customer data integration (CDI) solution that helps companies create and maintain customer information and makes this information available to other business applications and systems.
- http://www.oracle.com/applications/crm/siebel/customer-data-integration/universal-customer-master.html

Siperian Corporation
- Customer Data Integration (CDI) platform.
- http://www.siperian.com/

Purisma, Inc.
- Customer identity management solution that provides unified customer views including automated matching and exception handling.
- http://www.purisma.com/

Oracle Customer Data Hub
- Integrated customer data management solution that centralizes, de-duplicates, and enriches customer data and synchronizes with multiple data sources.
- http://www.oracle.com/data_hub/cdh.html

Initiate Systems, Inc.
- Customer data integration (CDI) solution.
- http://www.initiatesystems.com/