What we do

The Defence Infrastructure Organisation (DIO) plays a vital role in supporting our armed forces by building, maintaining and servicing the infrastructure needed to support defence.

DIO is part of the Ministry of Defence.

Read more about what we do


Our announcements

Our consultations

Our publications

Contact DIO

Office address

DIO Headquarters
Kingston Road
Sutton Coldfield
West Midlands

B75 7RL

Make an FOI request

  1. Read about the Freedom of Information (FOI) Act and how to make a request
  2. Check our previous releases to see if we’ve already answered your question
  3. Make a new request by contacting us at:

Freedom of Information Act and Environmental Information Regulation requests

MOD Information Rights Team
Ground floor, zone D
Main Building

Not to be used for requesting your own information (Subject Access Request), service records including for deceased relatives, or pension enquiries.

Corporate information