About Cornèrcard UK

Cornèrcard UK Ltd delivers prepaid card services to consumer and business clients. Cornèrcard UK Ltd is a wholly owned subsidiary of Cornèr Bank.

Founded in Lugano in 1952, Cornèr Bank Group is an independent Swiss private bank group operating on the national market as a full-service bank. Active across the whole range of traditional banking services, Cornèr Bank Group specialises in the Private Banking sector, as well as in the areas of lending, Visa, MasterCard and Diners Club payment cards (Cornèrcard) and online trading (CornèrTrader).

Constantly expanding service range, innovative technology and personal service of the highest level are the reasons for the growth of Cornèrcard UK.

Credit card portfolio to CCMS

Cornèr Bank implemented a new credit card management system - CCMS - to be used by each member of the group. This results in greater efficiency and cost savings. Cornèrcard UK used a bespoke system - NIS - of which the entire prepaid credit card portfolio needed to be migrated to CCMS. Cornèr requested DX to execute the data migration.

Main aspects of this migration


250.000 cards and 25.000 persons

Big bang

Migration in a single step


The execution was supported by a runbook with multiple fallback scenarios

Scope and results

DX was responsible for the data migration. DX conducted gap analysis, cleansed data, created datamappings, created controls reports, performed trial migrations and - ultimately - performed the final migration. The final migration was performed - as planned - in a weekend.

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