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Satellite Connectivity

Purpose-Built Space Solutions for Government Missions

Governments and defense agencies need secure, resilient communications that work everywhere. SES delivers purpose‑built multi‑orbit solutions—leveraging GEO, MEO, and access to LEO—designed to meet the evolving requirements of defense, security, civil agencies, and international partners.

Resilience and Security in a High-Risk World

Resilience and service assurance have never been more critical than in today’s geopolitical landscape. As a trusted provider of connectivity to governments, militaries, and organizations operating in high‑risk and conflict environments, SES understands the evolving threats posed by cybercriminals and sophisticated state‑sponsored actors.

To safeguard mission continuity, we are deploying capabilities that ensure both resilience and redundancy across every layer of our network. Our multi‑orbit, multi‑band architectures are intentionally engineered so that if one layer is disrupted, others seamlessly sustain continuity. Backed by the highest standards of satellite network security, SES delivers robust, reliable connectivity when and where it matters most.

Assured Connectivity Wherever the Mission Leads

Our Secure Integrated Multi‑Orbit Network (SIMON™) ensures always‑on, adaptive communications by intelligently routing traffic across multiple orbital regimes—supporting warfighters and government users even in contested or rapidly changing environments. SES systems already underpin key defense frameworks such as ABMS and Multi‑Domain Operations by enabling fast, secure data transport between sensors, platforms, command posts, and mobile units.

Unified Multi-Layer Communications Across Domains

Complementing this architecture, our Multi‑Layer Communication System seamlessly aggregates and blends bandwidth across GEO, MEO, LEO, mobile, and terrestrial networks via an intelligent edge device, providing guaranteed high‑performance bandwidth as a managed service. This enables reliable, flexible connectivity across ground, air, sea, space, and cyber operations—whether on the move, on the pause, in clear or contested environments. 

A Robust, Integrated Multi-Orbit Fleet

Together, our unified multi‑orbit fleet—spanning ~120 satellites across GEO and MEO with strategic LEO access—creates one of the world’s most robust, adaptable, and secure government‑grade SATCOM ecosystems. 

The result: A fully integrated, future‑proof multi‑orbit platform that empowers government and international partners with resilient, application‑aware, global connectivity—ensuring mission success anytime, anywhere.

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Accelerated Access to Space

Hosted Payloads

When timelines slip and budgets tighten, hosted payloads keep missions moving. SES Space & Defense delivers end-to-end hosted payload solutions to U.S. DoD, that provide a faster, lower-cost path to orbit, enabling government and military customers to deploy mission-dedicated payloads without the complexity or expense of a standalone satellite system. 

Furthermore, SES, with its decades of track record of government and institutional services, provides hosted payload services for major European projects.

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When every second counts, connectivity can’t wait

LEO

SES Space & Defense delivers real-time low-latency communications through LEO Relay Services (LRS). Integrated across LEO, MEO, and GEO, LRS provides multi-orbit flexibility, rapid data delivery, and agility.

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Powering the Mission with MEO

MEO

Orbiting at 8,000km, our Medium Earth Orbit (MEO) constellation delivers high-throughput, low-latency, high network availability, and operational flexibility, ensuring robust communication for critical missions.

Integrated with our GEO fleet and trusted Low Earth Orbit (LEO) partners, SES Space & Defense provides the industry’s only multi-orbit, multi-band solution, featuring a redundant and disaggregated ground and space architecture designed for resilience in contested environments.

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O3b mPOWER

O3b mPOWER is our second-generation MEO constellation, purpose-built to support government mission partners operating at the tactical edge. The constellation is an integrated communications system with fully synchronized space and ground resources delivering resilient, high-performance connectivity for the most demanding operational environments.

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mGS

The MEO Global Services (mGS) Program expedites the purchasing process, providing bulk MEO capacity to participating nations with pre-purchased bandwidth, eliminating a lengthy acquisition process.  With mGS, customers can seamlessly leverage O3b mPOWER capacity, accelerating response times, enhancing connectivity, and empowering mission success across a range of applications.

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IRIS2 + meoSphere

Once operational, IRIS2 will expand SES MEO network with 18 satellites providing pole-to-pole coverage, forming the foundation of SES’s future MEO capabilities and supporting scalable growth into the next decade. Through innovative initiatives such as IRIS2 and meoSphere, SES is building the world’s trusted space ecosystem.

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Global Coverage. Perform Beyond.

GEO

Orbiting at 36,000km in Geostationary Earth Orbit (GEO), our 50+ satellite fleet in Ku, Ka, Mil-Ka, and X-band delivers flexible, robust and global coverage.

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GovSat-1 & GovSat-2

GovSat-1 delivers military-grade resiliency with commercial innovation, providing government users with secure, flexible Mil Ka- and X-band coverage.  GovSat-2, expected to launch over the European geostationary arc in 2028, will join GovSat-1 to boost reliable non-preemptible services across the region.

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FlexGovSecure

FlexGovSecure meets the growing demand for reliable, high-speed communications across government and defense operations. This Transmission Security (TRANSEC) solution protects data across multiple pathways by obscuring signals to guard against tracking and cyber threats.