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# Common Nexus > Data sovereignty company -- chain of custody over corporate data in AI-enabled environments. Common Nexus maintains chain of custody over corporate data for regulated companies. We map where data flows through AI services, identify where controls break, and deliver documented evidence for auditors and regulators. Our work covers Microsoft 365 environments with AI tools (Copilot, third-party OAuth apps, shadow AI). Founded by Thomas Harrison. Twenty-seven years of enterprise IT, Operations and Security across regulated industries -- healthcare (HIPAA), financial services (FINRA, SOC 2), and defense (CMMC). ## Software - [Nexus Contacts](https://commonnexus.com/software/nexus-contacts): Privacy-first iOS contact management with CRM-like features. On-device storage, no cloud dependency, no analytics or telemetry. - [Software Overview](https://commonnexus.com/software): Software product line built on a data portability architecture. ## Infrastructure - [Infrastructure Services](https://commonnexus.com/infrastructure): On-premise AI infrastructure design for regulated industries -- architecture, hardware selection, deployment, and operations transfer. ## Intelligence - [Exposure Brief](https://commonnexus.com/intelligence): Daily intelligence briefing for operational leaders at regulated organizations. Tracks regulatory shifts, AI vendor risk, governance gaps, and compliance frameworks. ## Company - [About](https://commonnexus.com/about): Company background, principles, and founder - [Contact](https://commonnexus.com/contact): Get in touch -- hello@commonnexus.com - [Privacy Policy](https://commonnexus.com/privacy): How we handle data