The Department's postal services are provided through the Department for Business, Enterprise and Regulatory Reform (BERR), the Department for Children, Schools and Families (DCSF) and the Research Councils, which manage the buildings that DIUS occupies. None of these organisations separates mail sent by DIUS from its own mail, so information on the number of items of mail sent by DIUS is not held.
Royal Mail has been the sole postal service provider for all office locations in the last 12 months.