OHB Hellas and Parsimoni to Develop Sovereign Software Solution

Why It Matters

The joint platform gives the European space sector an independent, secure software stack, accelerating the growth of in‑orbit services while reducing reliance on non‑European vendors.

Key Takeaways

• OHB Hellas partners with Parsimoni for sovereign software platform
• Combines Orbital HPC hardware with SpaceOS‑based App Store
• ESA supports Parsimoni’s App Store development
• Enables secure, software‑defined satellites and in‑orbit services
• First offering includes fire and cloud detection applications

Pulse Analysis

The rise of software‑defined satellites is reshaping the space industry, shifting value from hardware to modular, updatable code. Operators now demand the ability to upload new capabilities after launch, a trend driven by commercial Earth observation, communications, and emerging in‑orbit servicing markets. However, this flexibility introduces security challenges, especially when multiple payloads share limited onboard resources. A sovereign, European‑controlled software ecosystem addresses these concerns by providing a trusted stack that can be audited, certified, and isolated from foreign influence.

OHB Hellas brings its Versal Orbital High‑Performance Computing (HPC) platform, a radiation‑hardened processor suite designed for intensive on‑board workloads. Parsimoni contributes its Satellite App Store, built on SpaceOS—a specialized operating system that enforces strict sandboxing and resource allocation for each application. Together, they create a plug‑and‑play environment where developers can publish, certify, and deploy apps directly to orbit, similar to terrestrial app marketplaces. The initial bundle, featuring fire and cloud detection tools, demonstrates how domain‑specific analytics can be delivered as downloadable services, reducing time‑to‑market for mission‑critical capabilities.

For European space actors, this collaboration signals a strategic move toward autonomy and resilience. By controlling the software supply chain, ESA‑backed initiatives can mitigate geopolitical risks and foster a domestic ecosystem of developers and service providers. The platform also opens revenue streams for satellite operators through on‑orbit software sales and updates. As more missions adopt modular architectures, the OHB‑Parsimoni solution could become a de‑facto standard, influencing policy, procurement, and the broader commercialization of space services.