Story highlights The Pentagon had no comment on the meeting

Musk's company launches military satellites into orbit

Washington (CNN) Elon Musk, the billionaire CEO of SpaceX and Tesla, met with Secretary of Defense Ash Carter Wednesday as the Pentagon looks to raise its technology game.

The focus of the closed-door get together was "innovation," according to a Defense Department spokesman, although Musk is also looking to win more government business for SpaceX, which launches satellites into orbit.

Neither Carter nor Musk spoke to reporters after their meeting, but Defense Department spokesman Peter Cook said Monday that Carter "has been reaching out to a number of members of the technology community to get their ideas, their feedback, find out what's going on in the world of innovation."

Musk tweeted Thursday about the visit and included a reference to the Marvel Comics' Iron Man character. He is thought to have partly inspired that character in the 2008 "Iron Man" film.

Something about a flying metal suit...https://t.co/6Z1D9iZ1fV — Elon Musk (@elonmusk) June 9, 2016

When asked by CNN's Barbara Starr if Musk's role as a defense contractor would complicate the meeting with Carter, Cook said: "The secretary knows very well the rules and regulations required, and how to keep those issues separate and apart and transparent."

Read More