Analytical Graphics - Leader in space software - download free Satellite Tool Kit SpaceAge Control, Inc. - Miniature and subminiature position transducers and air data probes. SpaceDev Corp. - For profit space development emphasizing low-cost mission solutions, off-the-shelf-components and inexpensive mission design, construction and operations. Space Media Corporation - Video and New Media production services for the worldwide Space community. Space Tourism - Interglobal 21st-Century Mall - Future space activities Orbitica - French and English site which sells gps, satellite phones, pagers, and meteo receivers. TransOrbital, Inc. - A commercial venture dedicated to the development of space transportation technologies. Working in concert with others to facilitate the colonization and commercial development of space in the 21st Century. Swiss Propulsion Laboratory - Focused on research and development of systems to transport small civilian payloads into a low-earth orbit. Development of liquid bi-propellant engines and solid boosters. Micro Aerospace Solutions, Inc. - Specialize in designing systems for small and nanosatellites. Tecnologia Aeroespacial Mexicana - Design and construction of hydrogen peroxide rockets, distillation units, and penta metallic catalyst packs. [choose between Spanish and English] Tethers Unlimited, Inc. - Small business that designs, develops and builds space transportation systems using space tethers to transfer energy and momentum to payloads without the use of rocket propellant. Command and Control Technologies Corp. - Provides software products and turnkey systems for launch site automation and other mission-critical control system applications. Weld Plus Inc. - Manufactures satellite assembly positioners for space satellites.