A number of private-sector companies are aiming to harbor commercial activities in low Earth orbit (LEO) as the International Space Station approaches its end of service. This article discusses the various projects, with a focus on Blue Origin's Orbital Reef program, which recently aced testing milestones for its critical life support system with assistance from NASA. Orbital Reef plans to build a space habitat with NASA as a main client starting out, with a wider goal of fostering a sustainable commercial presence in LEO. The initiative is backed by NASA's Commercial LEO Destinations program, which is providing funding to encourage the private sector to build space habitats.