Count on Iridium for tactical, real-time voice and low-latency data communications when it matters most. No other company can help mobilize and monitor personnel, data, and assets on the ground, beyond line-of-site, and out of reach of terrestrial networks – anywhere on the planet.

Enhanced Mobile Satellite Services (EMSS)

Iridium holds a multi-year, fixed-price contract with the United States Department of Defense (DoD), through the United States Space Force, enabling EMSS capabilities with unlimited usage for an unlimited number of subscribers on Iridium narrowband devices. Over the past 20 years, Iridium and the DoD have jointly developed an operational environment that provides the critical network transparency and collaboration to enable successful execution of the warfighter’s mission. DoD and associated DoD-approved subscribers have unlimited access to:

  • Global Secure and Standard Voice
  • Secure Voice Encryption and Prioritization (NSA Type 1 and AES 256 encryption)
  • Broadcast, Netted, or Distributed Tactical Communications System (DTCS) multicast
  • Data and IoT applications: Global Data Burst (GBD),  Short Burst Data (SBD­®), Electronic Short Burst Data (ESBD)
  • 24/7/365 EMSS Customer Care

Security at Your Command Through a Dedicated Gateway

The Iridium network provides pole-to-pole secure communications for United States government customers through a dedicated gateway. With unmatched security, reliability, and reach, Iridium delivers reliable and robust mission-critical communications.

Iridium Certus® for the U.S. Government

Iridium Certus enables midband and broadband voice and data services, including remote communications, personnel tracking, and over-the-horizon, beyond line-of-sight, and on-the-move communications at a range of speeds at your command. U.S. Government customers can rely on the secure, low-latency connectivity of Iridium Certus through dedicated U.S. gateway and infrastructure, provided exclusively by Comsat.

Trusted Everywhere

Iridium is proud to serve our U.S. Government customers everywhere they serve.


More Powerful Global Technologies

Through an expansive value-added partner network of leading technology companies with years of government and defense experience, Iridium is advancing the way U.S. Government organizations communicate every day.