GSA said it estimates spending of between $850 million and $1.1 billion on the contract annually.

The list, which the GAO publishes every two years at the start of a new Congress, puts particular attention on the process for security clearances — an issue the agency first raised separately in 2018.

"We're working very hard to really continue the dialogue," the deputy CTO of OSTP says.

DOD officials said resources are lacking to recruit new talent at the scale the military services require.

It's no secret that the DOD likes Windows 10. One software contract is worth up to $3.17 billion, and another enterprise services deal could bring Microsoft $1.76 billion.

The Defense Digital Service issued a request for information this week looking to create a "Civilian Hiring as a Service Pilot Program" for recruiting.