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Critical Flytech

Critical Flytech, an Airbus and Critical Software joint venture, develops high-assurance, certifiable embedded software for aviation, defence and space from Coimbra and Lisbon.

Critical Flytech is a joint venture between Airbus and Critical Software that develops high-assurance, certifiable embedded software for aviation, defence and space applications. Founded in 2025, the company builds on 15 years of collaboration between its parents dating back to the A350 avionics software programme. It is headquartered in Coimbra, Portugal, with a secondary office in Lisbon.

The company's product work spans safety-critical avionics software, cabin and cargo management systems, aerospace connectivity solutions, and advanced simulation tools and R&D demonstrators for future aviation experiences. Its technical domains include real-time operating systems, embedded C programming, avionics systems and software certification. Critical Flytech describes itself as a centre of excellence for mission-critical aerospace software and sits within Airbus' global innovation ecosystem.

Critical Flytech launched with around 120 specialists and is targeting 300 employees by the end of 2028. Engineering work concentrates on high-assurance, certifiable software, combining Airbus aerospace expertise with Critical Software's embedded systems experience.

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