SAIF Autonomy: Building the trust layer for autonomy and physical AI. SAIF are building certifiable, high integrity safeguards for autonomous and human operated systems. Our core software NEXUS can be used with traditional deterministic autonomy all the way up to and including physical AI integrations. Our tech functions as a real-time, edge-based safety control platform, requiring no reach back coms or datalink to operate (can function entirely human out of the loop) and is for use in autonomous systems across all domains. Critically, when things go wrong, we take high integrity corrective actions, keeping systems safe and on mission even in denied environments. Nexus is high integrity embedded behavioural assurance software for all things that move. Future-focused. Compliance-ready. Built for safety-critical environments.