British Soldier Uniform and Union Jack in background


UK DIO: Managing the UK’s Entire Defense Portfolio

UK DIO: Managing the UK’s Entire Defense Portfolio

Amentum delivers comprehensive program management across the globe. The UK Ministry of Defence has engaged us to manage their country’s national and international defense estate portfolio. The overall contract is valued at approximately £400 million ($670 million) over 10 years.

As a partner with UK’s Defence Infrastructure Organisation, we’re responsible for strategic disposal of sites, allocation of assets, and construction and maintenance of the estate infrastructure of their defense facilities worldwide, including military bases that accommodate service personnel and their families.

Our skilled team performs key functions, including hard and soft facilities management, workforce planning and transformation, utilities management, project and program delivery, and strategic-asset management. We have been tasked by the UK government to increase efficiency, reduce costs, and deliver the best value to UK taxpayers.


  • Managing assets worth more than £21 billion, including over 45,000 buildings, 50,000 houses, and 135,000-bed spaces for the UK Armed Forces.
  • Overseeing a portfolio totaling some 230,000 hectares, or one percent of the UK landmass.
  • Managing 4,900 personnel in DIO across UK military bases in Germany, Cyprus, the Falkland Islands, Gibraltar, and Belize.
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