Iridium Communications ( IRDM ) operates a constellation of low earth-orbiting satellites, offering voice and data communications services and products to businesses, U.S. and international government agencies, and other customers on a global basis. With that in with defence departments, Iridium may be the one sending the phone bill to the government after each flight. Iridium's solutions are also suited for industries such as maritime, mining, forestry, and oil and gas sectors.