Since last decade, NASA has turned repeatedly to Colorado companies to produce the technology it needs to not only send astronauts on new lunar missions but also to Mars and into the depths of space. Above, the International Space Station.

President Donald Trump's administration announced plans Monday to end NASA's funding of the International Space Station in 2025 and begin a new $150 million program to build commercial platforms in orbit.

There is only a handful of companies currently working to build private space stations. Two, Bigelow Aerospace and NanoRacks, have hardware on the ISS, while a third is set to launch its first module in 2020.

It is unclear whether the White House proposal means NASA will look to have private entities take over ISS operations. But the chief executivescontinue humanity's presence in low Earth orbit. NanoRacks has multiple services on board the ISS, including a system which deploys small satellites from one of the modules on board. But NanoRacks wants to begin building commercial habitats out of the upper stages of rockets launched into orbit.

Bigelow Aerospace already has its habitable test module BEAM docked with the ISS. It arrived in April 2016 for a two-year mission to test the durability of the module. The modules built by Bigelow expand once they are deployed in orbit. If the BEAM testing is successful, the company would be able to launch much more cubic footage into space per launch compared with the modules that make up the ISS.

Axiom Space plans to build out the core of its station at