Transforming Data Into Member Value: Building a Modern Data Ecosystem
Nationwide Building Society· United KingdomUnity Catalog · MLflow · Delta Lake +2Nationwide Building Society, the UK's largest building society managing £367.9 billion in assets, implemented the Databricks Data + AI Platform in 12 months to consolidate 17 of its 19 data warehouses into a single governed lakehouse on Azure. The platform uses Unity Catalog for governance across more than 5,000 internal users, MLflow for model management, and AI/BI Genie for natural-language queries, supporting personalization, fraud prevention and regulatory reporting for over 24.5 million customers.
Overview
Nationwide Building Society, the UK's largest building society managing £367.9 billion in assets, implemented the Databricks Data + AI Platform in 12 months to consolidate 17 of its 19 data warehouses into a single governed lakehouse on Azure. The platform uses Unity Catalog for governance across more than 5,000 internal users, MLflow for model management, and AI/BI Genie for natural-language queries, supporting personalization, fraud prevention and regulatory reporting for over 24.5 million customers.
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Inspect the highlighted sourceThe challenge
We needed a single source of truth for customer data, a technology that better enabled our data governance strategy and championed transparency of ownership and lineage. These were the essential ingredients for delivering personalization and fraud prevention quickly and consistently.
The solution
Reported business value
By consolidating 17 of 19 legacy warehouses and centralizing over 3,000 daily data feeds into the lakehouse, this consolidation has unlocked access to nearly 70% of trusted data sources, with 15% of these sources driving real-time decision-making.
Sources
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This record was researched and written with AI assistance, and its claims were checked against the sources above. (EU AI Act art. 50 transparency notice.)
Other financial services entries in the register.
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