Houston-based Starlab Space, which is developing a commercial space station, has enlisted a high-profile investor — Japanese industrial conglomerate Mitsubishi.

With the addition of Mitsubishi, Starlab now boasts three equity partners. The two others are aerospace company Voyager Space and defense and space product manufacturer Airbus Defense and Space. Financial terms of the Mitsubishi deal weren’t disclosed.

Voyager and Airbus finalized creation of the Starlab joint venture in January 2024. The two companies announced the joint venture in August 2023.

Dylan Taylor, chairman and CEO of Voyager, says the Mitsubishi partnership will help “unlock space technology on a global scale and drive meaningful impact across several industries, from space to ground.”

“We are very pleased to welcome Mitsubishi … as a strategic partner in our joint venture with Voyager Space. This brings Starlab Space to the next level on the way to a truly global endeavor,” Mike Schoellhorn, CEO of Airbus Defense and Space, says in a news release.

The continuously staffed, low-Earth-orbit Starlab space station will serve NASA, other space agencies, businesses, and research organizations.

Starlab announced in January 2024 that it had tapped Elon Musk’s SpaceX Starship to launch Starlab’s stainless-steel space station. A launch date hasn’t been revealed, although it’s tentatively set for the late 2020s.

The Starlab station will help fill the gap that’ll be left by the International Space Station, which NASA plans to retire in 2031.