Paragon Space Development Corporation is an American company headquartered in Tucson, Arizona. Paragon is a provider of environmental controls for extreme and hazardous environments. They design, build, test and operate life-support systems and leading thermal-control products for astronauts, contaminated water divers, and other extreme environment explorers, as well as for uncrewed space and terrestrial applications.

Taber MacCallum is the co-founder and co-CEO of Space Perspective, a human spaceflight company planning to take people and payloads to the edge of space by balloon, and the former chairman of the Commercial Spaceflight Federation (CSF). He is co-founder and former CTO of World View Enterprises, a stratospheric balloon company using its un-crewed Stratollite for remote communications and sensing. MacCallum was also a founding member of the Biosphere 2 design team and a crew member from the original two-year mission inside the materially-closed ecological system.