IT capabilities have been an important research area, especially in the big data era, when much business value can be drawn from external data. This study reports an interesting phenomenon, the transformation of an internal IT department of a traditional manufacturing company into an IT service provider. It adopts the single case study approach to explaining how the newly transformed business unit rapidly delivers IT services to external clients across industries. Results show that the IT service providers can provide fast service delivery to different clients across industries through developing digital assets, bridging business-data and standardizing services/products, which interact with each other. The whole process of service delivery is supported by IT capabilities such as IT infrastructures, IT managerial skills and IT technical skills. We extend the IT capability and IT service provider literature to the big data context.