SpaceX and Bigelow Aerospace are joining efforts to offer trips to a privately owned orbital habitat.
The companies say in a statement Thursday that their marketing effort will be aimed at international customers.
SpaceX says it will offer rides in its Dragon capsule, using its Falcon rocket. The same system is currently being prepared for a test run to the International Space Station as an unmanned supply mission.
Bigelow is developing modular space habitats after successfully orbiting test versions of its inflatable designs.