Serco Italia S.p.A.

Serco Italia S.p.A.

Serco Italia S.p.A. is the Italian arm of global service provider Serco Group, delivering mission operations, ground segment engineering, and systems integration for Europe’s premier space programmes.

Location: Rome, Italy

Sidereus Space Dynamics

Sidereus Space Dynamics

Sidereus Space Dynamics, founded in 2019 and headquartered in Salerno, Italy, is pioneering the development of the EOS Personal Launch Vehicle, a fully reusable single-stage-to-orbit system designed for rapid and flexible deployment of small satellites. With significant funding and successful testing milestones, the company is poised to transform access to space by offering ultra-responsive and affordable launch solutions.

Location: Campania, Italy

Şira International Space Research Inc.

Şira International Space Research Inc.

Şira International Space Research Inc. is at the forefront of pioneering a brighter and more sustainable future in interstellar space. By leading in space science and technology, the company aims to clean up extensive space debris, refurbish inactive satellites, and promote the sustainable use of space through innovative projects like the Space Debris Recycling Center and the ŞiraSpaceCoin NFT initiative.

Location: Kavaklıdere, Ankara, Turkey

Sirin Orbital Systems AG

Sirin Orbital Systems AG

Sirin Orbital Systems AG, established in 2019 in Zürich, Switzerland, specializes in developing advanced technologies for space and terrestrial applications. Their expertise includes Wireless Power Transfer (WPT), Space-Based Solar Power (SBSP), small satellite propulsion systems, and artificial intelligence solutions, aiming to revolutionize energy systems and space technologies

Location: Zürich, Switzerland

Sirius Space Services​

Sirius Space Services​

Sirius Space Services, established in 2020, is a French aerospace company dedicated to developing reusable launch vehicles for small satellites. With a focus on sustainability and cost-effectiveness, the company aims to strengthen Europe's strategic independence in space access

SITAEL Hellas

SITAEL Hellas

SITAEL Hellas, established in 2013 in Veria, Greece, is a subsidiary of the Italian company SITAEL S.p.A. The company specializes in developing high-reliability electronics and subsystems for space applications, with a focus on in-space propulsion systems.

Location: Veria, Greece

Skyrora

Skyrora

Skyrora, established in 2017 in Edinburgh, Scotland, is at the forefront of the UK's commercial space launch industry. Specializing in small satellite launches, the company develops innovative and eco-friendly propulsion technologies, such as Ecosene, a rocket fuel made from recycled plastic waste. With a focus on sustainability, Skyrora is advancing space exploration through reusable and cost-effective launch vehicles. Supported by key investors and partnerships with space agencies, Skyrora is positioning itself as a leader in the European launch sector.

Location: Edinburgh, Scotland

SmallSpark Space Systems

SmallSpark Space Systems

SmallSpark Space Systems is a Cardiff-based company specializing in developing advanced technologies to enhance spacecraft development efficiency.

Location: Cardiff, Wales, United Kingdom.​

Solar Foods Oyj

Solar Foods Oyj

Solar Foods is at the forefront of sustainable food innovation, producing Solein, a novel protein derived from air and electricity. This groundbreaking approach offers a carbon-neutral alternative to traditional protein sources, aiming to transform the future of food production and contribute to global environmental sustainability.

Location: Vantaa, Finland

Solar System Resources Corporation

Solar System Resources Corporation

Solar System Resources Corporation Sp. z o.o., established in 2019 and headquartered in Kraków, Poland, is a technology startup specializing in space mining and energy transformation. The company focuses on designing technologies for future deep space missions, particularly in exploring and utilizing lunar resources. Their mission is to achieve a green transformation of the mining industry through the use of space resources, contributing to sustainable development and environmental preservation.

Location: Kraków, Poland

SolSys Mining

SolSys Mining

SolSys Mining, established in 2018 in Norway, focuses on space resource utilization, particularly beneficiation technologies and the creation of high-fidelity lunar regolith simulants. The company collaborates with organizations like the Norwegian Space Agency, NGI, and CIRiS to advance sustainable space exploration and habitation.

Location: Strømmen, Norway

SpA3ce Tech

SpA3ce Tech

SpA3ce Tech is a Greek technology company focused on merging space science with healthcare innovation. The company develops integrated solutions that combine biomedical engineering with space technologies to enhance human health and performance in both space missions and terrestrial applications.

Location: Athens, Greece