Nationwide Migrates 15 Million Customers to New Cloud-Based Platform

Nationwide, one of the UK's largest building societies, has completed a massive digital transformation project with Microsoft. The company has migrated 15 million customers off its legacy banking platform onto a cloud-based technology stack powered by Azure.

The project involved consolidating 19 disparate data storage platforms into one unified platform using Microsoft Azure and Azure Databricks. This consolidation has enabled Nationwide to provide its AI systems with easier access to both structured and unstructured data, allowing the company to track customer journeys and roll out new AI-powered tools.

Nationwide has also expanded its rollout of Microsoft's AI tools, with around 1,000 finance workers using the premium tier of Microsoft 365 Copilot. Internal polling found that 46% of respondents who worked in finance use Copilot every working day for tasks such as faster drafting.