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ASCEND
YOUR MISSIONS
BEYOND SPACE

Preventive solutions to space debris

ABOUT OUR COMPANY

The first ecosystem of equipment tailored for satellite end-of-life management.

With the booming space industry, space debris is growing exponentially, threatening access to space and vital services like communication, navigation and natural disaster management. The solution? Responsible disposal of space assets at end-of-mission, now a legal requirement since 2022.

To that end Ascend Beyond Space offers the first complete and accessible ecosystem of compatible and complementary equipment designed for this purpose, providing a sustainable solution to the growing challenge of space debris.

Ascend Propulsion System Conference

OUR PRODUCTS

Our range of "plug & play" preventive solutions. 
 
Installed on ground, excelling in space.

  • Single-use, fully electrical switch tailored for battery passivation through disconnection and active depletion.

    Handling up to 50 amperes with a highly competitive size ensuring a seamless integration in a wide range of spacecrafts.

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    SPARK Battery Passivator

    Single-use fully electrical switch tailored for solar array disconnection at end of mission. Best cost-effective and accessible choice for integrators seeking a convenient and affordable means to passivate solar panels.

    ECLIPSE Solar Array Passivator

  • GARNET Pressure Transducer

    Combined pressure and temperature sensor designed as a seamless plug-and-play subsystem. Enabling assessment of propellant levels and propulsion system health throughout the complete mission lifetime, and at end-of-life stages.

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    HOOVER Isolation Latch Valve

    High-reliability fluidic component designed for safe and autonomous isolation or venting of spacecraft propulsion systems. Its compact, robust design ensures leak-tight sealing without continuous power, offering a lightweight, plug-and-play solution for pressure vessel isolation at launch or end of life.
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  • High-performance, simple and cost-effective water-based resistojet propulsion system. Standing out as best-in-class on thrust and specific impulse in its category. Designed for high modularity allowing various tank sizes, thrust levels and total impulse making it the ideal solution for various deorbiting and mission manoeuvers.

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    ASCEND Propulsion System

    Low size and high responsivity cold-gas based reaction control system. Featuring four independently controllable thrusters, a single unit enables precise maneuvering of the spacecraft within four degrees of freedom while two units expands control to  six degrees of freedom. Agile, compact and modular, it is ideally suited for tasks such as rapid collision avoidance maneuvers in Earth orbit and attitude control in lunar orbit and deep space.

    TEMPEST Reaction Control System

LATEST NEWS

What are we up to

ABS to design the EPS architecture of PAVE Space kick-stage

October 2025

ABS to design the EPS architecture of PAVE Space kick-stage

Ascend Beyond Space has started a collaboration with PAVE Space SA on the Electrical Power System and architectural design for their kickstage vehicle. PAVE Space is a Swiss company built on the success of the Gruyère Space Program, which developed Europe’s first reusable rocket demonstrator. Its expertise spans space propulsion, control algorithms, and rapid integration of complex systems. PAVE Space now target last-mile satellite delivery, using its kickstage to move multi-ton payload from LEO to any orbit within 24 hours! Ascend Beyond Space will be contributing to this endeavor with our expertise in spacecraft power systems to help define a robust, efficient, and high-performance electrical power system architecture for the vehicle.
Ascend Beyond Space wins Jury "Coup de Coeur award" of Slush Starter 2025

September 2025

Ascend Beyond Space wins Jury "Coup de Coeur award" of Slush Starter 2025

Ascend Beyond Space has been selected as one of the 10 innovative startups joining the Slush Starter 2025 program, organised by CCI Lyon Métropole Saint-Etienne Roanne and the Enterprise Europe Network (EEN). In addition to this selection, the company received the “Coup de Cœur du Jury” award, highlighting the jury’s special recognition for its mission to make space more sustainable. The startup is committed to addressing space debris challenges. As its team often states: “We believe space is not a trash but a border, and we're working hard on keeping it open for everyone.”
Internship Close-Out

Aug 2025

Internship Close-Out

Wrap up another internship, proudly looking back on all that’s been achieved and grateful for the curiosity, energy, and fresh perspective brought to the team. Coming in with little direct experience in space hardware, our intern quickly grew into the role with guidance, technical curiosity, and determination. The main challenge: designing a tank for the high total impulse configuration of our Ascend Propulsion system. Some highlights of the work: - Defined design requirements aligned with ECSS, SpaceX RPUG, and launch safety standards. - Designed and modeled the tank’s geometry and structure. - Developed a modular bracket for seamless integration. - Validated every detail with advanced simulations: pressure, vibrations, environmental loads, and more. We’re impressed by the achievements made during this internship and proud to help launch new engineering talent from Annecy into the world of satellite subsystems! 🛰💡

OUR EXPERTISE

Ascend Beyond Space's core expertise spans three pivotal domains crucial for mission termination and passivation: power subsystems, fluidics subsystems, and propulsion subsystems. Our comprehensive offerings in these areas ensure robust solutions tailored to meet the harsh requirements of space missions.

Advanced satellite power solutions, complete electrical power systems (EPS),  electrical passivation devices.

Cold-gas, chemical, and electrical-based propulsion systems.  Thrusters,  electrical drives, fluidics, and sensors.

Support, installation, customization, and completion of our product lines. Spacecraft level design and AIV activities.

SERVICES

We assist customers in assessing and utilizing our products, as well as third-party solutions within our expertise, while ensuring their suitability for mission termination.

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