From the Starshield Wiki page:
>While SpaceX president and COO Gwynne Shotwell has indicated that there is little information she is allowed to disclose about Starshield, she has noted "very good collaboration" between the intelligence community and SpaceX on the program.
>The retired four-star general Terrence O'Shaughnessy, who previously ran U.S. Northern Command, is the vice president for SpaceX's Special Programs Group who is thought to be involved with Starshield.[1] The Wall Street Journal reported that Starshield's online job postings required people with top-secret clearances, as well as experience working with the Defense Department and intelligence community — such as representing Starshield to Pentagon combatant commands
>Col. Eric Felt, director of space architecture at the office of the assistant secretary of the Air Force for space acquisition and integration, said that there are plans to acquire at least 100 Starshield-branded satellites for this purpose by 2029. He said that while the military is an active user of SpaceX's commercial Starlink service, they also want to take advantage of the company's dedicated Starshield product line.