Praxis was a very successful private corporation founded by William Fort on Earth. It was co-managed by Fort's close associates, the so-called Eighteen Immortals. It was a transnational and a metanational. It successfully survived the Great Flood by investing heavily in infrastructure reconstruction.
- Dumpmines: resources recovery, Terra. Originally founded by Art Randolph.
- Ouroboros: resources recovery, Mars.
- Biotique: biotechnologies, Mars. Sax Russell worked there, undercover as Stephen Lindholm.
|The Mars trilogy|
|Characters||Principal: John Boone · Frank Chalmers · Nadia Cherneshevsky · Ann Clayborne · Michel Duval · Nirgal · Art Randolph · Sax Russell · Maya Toitovna · Zo|
|Places||Stellar bodies: Terra · Mars (Phobos, Deimos, Clarke) · Solar system|
|Groups||First Hundred · Areophany · UNOMA/UNTA · Reds (Kakaze, Marsfirst) · Greens · Free Mars · Praxis · The underground|
|Events||Timeline · 1st Revolution · Dorsa Brevia Conference · 2nd Revolution · Pavonis Mons Congress · 3rd Revolution|
|Concepts||Glossary · Terraforming · Areoformation · Space elevator · Longevity treatment · Eco-economics · Ecopoesis|
|Red Mars · Green Mars · Blue Mars · The Martians|