arcsec
High accuracy attitude determination and control for small satellites
32 employees · est. 2020 · Leuven, Belgium
Celestial Space Technologies GmbH is the older company (2020 vs 2018); arcsec is the larger of the two.
Side-by-Side Comparison
| Metric | arcsec | Celestial Space Technologies GmbH |
|---|---|---|
| Founded | ||
| Founded | 2020 | 2018 older |
| Headquarters | ||
| Headquarters | Leuven, Belgium | Nurnberg, Germany |
| Employees | ||
| Employees | 32 larger | 3 |
| Industry | ||
| Industry | Manufacturing, Space | Space, Telecom |
| Funding Stage | ||
| Funding Stage | Unknown | Not tracked yet |
| Total Funding | ||
| Total Funding | $1.27M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 2 | Not tracked yet |
| Services | ||
| Services | Advanced Attitude Determination Systems, Star Tracker Development, Reaction Wheel Manufacturing | Not tracked yet |
| Target Customers | ||
| Target Customers | Satellite Manufacturers, Aerospace Companies, Space Agencies | Not tracked yet |
| Taxonomy | ||
| Taxonomy | High-Precision ADCS, CubeSat Technology, SmallSat Solutions, Autonomous ADCS, Star Trackers, Reaction Wheels, Satellite Control Systems, Attitude Determination, Satellite Navigation, Space Technology, Aerospace Engineering, Satellite Autonomy, Spacecraft Maneuvering, Satellite Stabilization, Space Systems Engineering | Satellite Systems, Telecommunication Solutions, Space Industry, Lunar Economy, Small Satellite Antennas, RF And Telecommunication, Integrated Antenna Technology, LEO Satellite Operations, Data-Driven Industries, Industrial Engineering, Precision Tracking & Navigation, Space Engineering, New Space Companies, European Space Agency, Innovative Technology |
| Website | ||
| Website | arcsec.space | celestialspacetechnologies.com |
About arcsec
arcsec, founded in 2020, is a Belgium-based startup specializing in high accuracy attitude determination and control systems targeted at small satellites. Positioned within the Manufacturing and Space industries, arcsec plays a critical role in enhancing the precision and efficiency of satellite nav...
About Celestial Space Technologies GmbH
Celestial Space Technologies GmbH is a Germany-based space startup, founded in 2018 and focused on the Space and Telecom industries. The company has a clear vision of not only what is currently possible in the space industry, but also what needs to be made possible. Their commitment to delivering br...
We will tell you when either one moves
BounceWatch watches arcsec and Celestial Space Technologies GmbH for new funding, fast hiring, new executives and a change of software vendor. When one happens, we email you the same day.
Funding, hiring, leadership and stack changes at arcsec and Celestial Space Techno... — by email.
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Compiled from the BounceWatch company index. We last looked at arcsec on 1 Apr 2026, and Celestial Space Technologies GmbH on 11 Sep 2024. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.