Inmarsat is a global satellite communications company best known for providing reliable voice and data connectivity in remote areas where traditional cellular networks are unavailable. Founded in 1979, the company originally focused on maritime safety communications but later expanded into aviation, government, enterprise, and consumer markets. Inmarsat satellites support services such as satellite phones, broadband internet, GPS tracking, and emergency communications. Its network is widely used on ships, aircraft, exploration sites, and disaster-response operations. In 2023, Inmarsat became part of Viasat, expanding global satellite coverage and services.