CS Group – USA delivers advanced engineering services for the aerospace and defense sectors, with a focused mission: to support the development, certification, and protection of complex, safety-critical and mission-critical systems. We operate at the intersection of innovation and compliance, ensuring that next-generation platforms—airborne, spaceborne, or terrestrial—are engineered with precision, certified to the highest standards, and ready for real-world challenges.DO-178C – Software DevelopmentWe provide end-to-end support for airborne software under DO-178C, including planning, requirements, coding, verification, and certification for all DAL levels (A–E). We also support model-based design (DO-331), tool qualification (DO-330), and formal methods (DO-333). Our experience includes FMS, displays, FADECs, and surveillance systems.DO-254 – Hardware AssuranceOur teams design and verify electronic hardware per DO-254, from FPGA and ASIC development to requirements-based testing and traceability. We assist clients through all hardware lifecycle stages and provide support for SOI reviews and FAA certification.ARP4754A – System DevelopmentWe guide system architecture, requirements allocation, and DAL flow-down under ARP4754A, ensuring that system and subsystem designs meet aircraft-level safety and airworthiness objectives. We integrate tightly with software and hardware teams for seamless traceability and validation.DO-326A / DO-355A – Avionics CybersecurityWe secure airborne systems following DO-326A, DO-355A, and DO-356A, helping clients build secure architectures, perform threat analyses, and meet FAA expectations for aircraft systems security. Services include secure boot, encryption, risk analysis, and lifecycle documentation.