EnduroSat Secures €43 Million to Accelerate Endurance Gen3 Satellite Production
We are excited to announce the closure of a €43 million investment round led by Founders Fund. This significant funding round also included participation from CEECAT Capital, Morphosis Capital and other returning investors, highlighting the strong confidence in EnduroSat’s vision and capabilities.
The substantial investment will be directed towards scaling the production of EnduroSat’s new Endurance ESPA-class satellites, which range between 200-500kg. These software-defined satellites are equipped with advanced avionics and feature a fully modular design, making them ideal for operators seeking rapid deployment of hyperspectral imaging, synthetic aperture radar (SAR), broadband, navigation, and other sophisticated payloads. Additionally, the funding will support the expansion of EnduroSat’s fixed-cost constellations-as-a-service model across its existing European and U.S. locations.
As the number of satellites in space demanded by a broader set of players grows exponentially, our industry needs to re-think how these satellites are built. Raycho and his team at EnduroSat have taken the massive leap to go from utilizing traditional aerospace supply chains, to consumer electronics and automotive supply chains to build their products. This makes EnduroSat’s cost efficiency and performance above all in the market, and they have a proven flight heritage, with 3,000+ modules in orbit today. Their Gen3 satellites get them into a size class that will allow for almost any space opportunity to be relevant for them.
Delian Asparouhov
Partner at Founders Fund and Co-Founder and
President of Varda Space Industries
The new Endurance Gen3 satellite class is the result of over a decade of in-orbit experience and invaluable customer feedback. These satellites boast modular, high-performance avionics with up to 3.5kW of peak power and a 2GBPS data rate, making them highly configurable for a variety of advanced applications. Designed for constellations and responsive space applications, the Gen3 satellites feature a cableless bus design developed entirely in-house, allowing for assembly and functional testing in just a few hours—significantly faster than typical satellite builds today. The Gen3 ESPA-class satellites will complement EnduroSat’s flight-proven lineup of smallsat buses and components.
On top of the cutting-edge technology, EnduroSat introduces Space Service which covers the full mission cycle, enabling organizations to concentrate on their core, value-generating activities. This approach eliminates complexity and risk while streamlining costs and timelines for every mission phase, from constellation design to payload integration, launch, and operations.
The latest funding will also facilitate the construction of a new 17,500 m² facility in Sofia, which will become one of the largest space R&D centers in Europe. This state-of-the-art facility will include satellite avionics labs, two assembly lines, significantly expanded clean rooms, and a suite of space qualification equipment, including an anechoic chamber. By the end of 2025, EnduroSat aims to produce up to 60 satellites per month at this new location. Furthermore, the company is enhancing its U.S. operations by building a dedicated cleanroom to better support customers in the commercial and defense sectors worldwide.
Our mission is to make space universally accessible, because this fundamentally improves life on earth. We’re taking the complexity out of space missions by building and operating the space infrastructure our customers need, so they can focus on the next wave of innovation in space applications. I’m excited to work alongside and learn from the team at Founders Fund, which brings decades of expertise in scaling companies and redefining industries. By increasing our production and introducing our new generation of satellites, we’ll unlock access to satellite constellations for even more customers—with reliability and price transparency.
Raycho Raychev
Founder and CEO of EnduroSat
With the €43 million investment, EnduroSat is poised to redefine what’s possible in the space industry. From expanding its production capabilities in Sofia to scaling its operations in the United States, EnduroSat is set to provide top-tier satellite solutions to a broader range of commercial and defense customers globally.