Building confidence where failure is not an option
Railway systems operate in some of the most demanding environments, where safety, reliability, and availability are non-negotiable. Ensuring that both systems and software behave exactly as intended — under all conditions — is critical.
Our Systems & Software Validation services provide the independent assurance needed to demonstrate that railway solutions meet their requirements, comply with applicable standards, and perform safely in real-world operation.
From signalling and control systems to onboard and wayside software, we support validation activities across the full lifecycle — helping you reduce risk, accelerate certification, and deliver with confidence.
From requirements to real-world performance
Validation goes beyond testing. It is about proving that the right system has been built — and that it fulfils its intended purpose in operation.
We ensure full alignment between system-level requirements, software implementation, and operational behaviour through structured validation strategies and rigorous evidence generation. This includes validating functionality, performance, safety, and integration across complex, distributed railway environments.
By combining system-level insight with deep software expertise, we help identify gaps early, reduce costly rework, and ensure readiness for certification and deployment.
Aligned with railway standards and safety frameworks
Our approach is grounded in internationally recognised railway standards, including the CENELEC family — such as EN 50126, EN 50128 (and its evolution EN 50716), and EN 50129 — which define the lifecycle, processes, and assurance required for safety-critical railway systems.
We support validation activities across all Safety Integrity Levels (SIL), ensuring that systems meet the required levels of safety, reliability, availability, and maintainability (RAMS) throughout their lifecycle.
Our teams work closely with Independent Safety Assessors (ISAs) and certification bodies to ensure that all validation evidence is complete, traceable, and audit-ready.
Our services include
Hardware/Model/Software-in-the-Loop (HIL/MIL/SIL) Testing
Advanced HIL, MIL, and SIL testing in simulated environments.
Early validation stages for rigorous functionality and integration testing.
Verification of software interactions with simulated vehicle components.
Software/System Validation Facility (SVF)
Proven system for HIL, MIL, and SIL testing.
Simulators and emulators for ECUs and other relevant software.
Supports both on-site and remote validation activities.