US-based defence technology firm Leidos has announced that it has secured a Defense Enclave Services (DES) contract from the US Defense Information Systems Agency (DISA).

The single-award, indefinite delivery, indefinite quantity (ID/IQ) contract carries a total estimated value of $11.5bn.

The contract has a four-year base performance period, with three two-year option periods.

Leidos chairman and CEO Roger Krone said: “We are honoured that DISA has entrusted our team to establish the modern infrastructure foundation that will deliver critical combat support capabilities to our warfighters.

“Leidos is committed to helping DISA and the Defense Agencies and Field Activities (DAFA) further their vision, leveraging our decades of technological expertise to bolster their critical mission.”

The DES contract seeks to unify the DAFAs on a common network architecture through digital modernisation and transformation.

This is intended to help provide mission services that are focused on enhanced user experiences through improved security and network reliability.

Leidos Defence group president Gerry Fasano said: “The Defense Enclave Services programme demands unique expertise and advanced technology solutions.

“Leidos brings both at unparalleled scale, with a focus on constant innovation.

“We look forward to delivering an improved user experience and enhanced mission capabilities.”

Leidos focuses on providing technology, engineering and science solutions and services to the defence and intelligence markets among others.

The company is based in Reston, Virginia, and employs around 43,000 people in total.

Last month, Leidos reported a quarterly revenue of $3.49bn for the three months to 31 December.

The firm’s annual revenues for the fiscal year amounted to $13.7bn.

The DISA serves joint warfighters, national-level leaders and other mission and coalition partners engaged in US military operations.

Based in Fort Meade, Maryland, the agency offers command and control and information-sharing capabilities, as well as a globally accessible enterprise information infrastructure.