Total Communications Network
Inmarsat was the world's first global mobile satellite communications operator and is still the only one to offer a mature range of modern communications services to maritime, land-mobile, aeronautical and other users.
Formed as a maritime-focused intergovernmental organization over 20 years ago, Inmarsat has been a limited company since 1999, and has been listed on the London Stock exchange since 2005. Starting with a user base of 900 ships in the early 1980s, it now supports links for phone, fax and data communications at up to 64kbit/s to more than 200,000 ship, vehicle, aircraft and portable terminals. Users include ship owners and managers, journalists and broadcasters, health and disaster-relief workers, land transport fleet operators, airlines, airline passengers and air traffic controllers, government workers, national emergency and civil defence agencies, and peacekeeping forces.
The satellites are controlled from Inmarsat's headquarters in London, which is also home to Inmarsat Ventures as well as the small IGO created to supervise the company's public-service duties for the maritime community (Global Maritime Distress and Safety System) and aviation (air traffic control communications).
Today's Inmarsat system is used by independent service providers such as 7E Communications to offer a range of voice and multimedia communications.