Dataset - data.gov.uk

IT Service - Expenditure

Specific expenditure since 2016/17 in pertinent areas of IT Services.
- https://www.iana.org/assignments/media-types/text/csv
- https://www.iana.org/assignments/media-types/application/json
IT Services - Information

Dataset of IT storage, server, network and security, backup, disaster recovery and business continuity and end user devices.
- https://www.iana.org/assignments/media-types/application/json
- https://www.iana.org/assignments/media-types/text/csv

You can also access this registry using the API (see API Docs).