ICEYE vs Capella Space

Two commercial SAR (synthetic aperture radar) satellite operators. Both build and operate small X-band radar satellites that can image the Earth day or night, through clouds and weather. ICEYE, founded in Finland, has launched 76 satellites and says it owns the world's largest SAR constellation; Capella Space, founded in 2016, has been part of the quantum computing company IonQ since July 2025.^[5,8,9]

Facts checked Oct 11, 2026; each row cites its sources below.

SAR Technology: Why Radar Matters

Unlike optical satellites (Planet, Maxar, BlackSky), SAR satellites transmit their own microwave signals and capture the reflections, creating imagery regardless of daylight, cloud cover, or weather conditions. This makes SAR valuable where persistent monitoring is critical: maritime surveillance (detecting ships in all weather), disaster response (imaging through smoke and clouds), ground deformation monitoring (subsidence, earthquakes), and defense intelligence (detecting changes at military installations regardless of conditions).

Both companies fly X-band radars. ICEYE cites resolution of up to 16 cm and offers nine imaging modes, from the long-exposure Dwell family to the wide-area Scan Wide; Capella lists 0.25 m resolution and Spotlight, Sliding Spotlight, Stripmap, and Parallel Stripmap modes. The key difference is scale: ICEYE has launched 76 satellites and builds about 50 a year, while Capella does not publish a fleet total (its newest Acadia satellite, Acadia-10, launched in March 2026 and carries an optical terminal for testing).^{[4,5,6,8,12,13]}

Market Segments & Customers

ICEYE describes itself as a provider of sovereign intelligence from space. It serves defence and intelligence, environmental monitoring, insurance, and emergency management customers, and sells complete satellite systems to governments that want to run their own constellation: seven European governments have bought one, and it recently delivered a sovereign system to the Polish Armed Forces. In July 2024 ICEYE and Ukraine's Ministry of Defense signed a memorandum of cooperation on remote sensing. ICEYE says it has over 1,000 employees and raised EUR 450 million in a Series F round led by General Atlantic in June 2026.^[2,4,5,7]

Capella Space has focused on U.S. government customers: the NRO awarded it a contract in 2022 for SAR data modeling, simulation, and sample imagery, and it has worked with the Space Development Agency since 2021. Its commercial markets include maritime awareness, disaster response, and infrastructure monitoring. IonQ completed its acquisition of Capella on July 15, 2025, and plans to integrate Capella's satellites with its quantum technology to build a space-based quantum key distribution network.^[8,9,13,14]

What Comes Next

ICEYE plans to double satellite production from about 50 a year to 100 a year, according to its June 2026 funding announcement. Capella is validating an optical inter-satellite terminal on Acadia-10, and Via Satellite reports that later Capella satellites will carry Skyloom terminals from 2027 (Skyloom is also owned by IonQ).^[4,13]