Space Island Group (SIG) is a commercial organization based in West Covina, CA, USA, that is dedicated to the development of commerce, research, manufacturing and tourism in space.
SIG plan to accomplish this by designing, building and operating commercial space transportation systems and destinations. SIG's flagship project is the Space Island Project. This will be a stand-alone commercial space infrastructure supporting manned business activities in Low Earth Orbit (LEO) 400 to 500 miles above earth. SIG plan to accomplish this through the use of technologies, vehicles and procedures developed by NASA and aerospace companies over the last 25 years.