Thomas Harrison
Thomas Harrison
Data Sovereignty · Infrastructure · AI Governance
Founder, Common Nexus · Data Sovereignty

Organizations are losing visibility of their data.

Regulated organizations are navigating AI adoption, cloud complexity, and tightening compliance requirements — often without visibility into their own data exposure. I founded Common Nexus to close that gap, drawing on two decades of infrastructure and security leadership.

Summary

Organizations adopted cloud, AI, and SaaS tools faster than they built governance around them. The result is a widening gap between what leadership assumes about their data and what is actually happening.

Common Nexus

I founded Common Nexus because the data sovereignty problem is structural, not situational. Organizations are not losing control of their data due to negligence — they are losing it because the systems they adopted were never designed to give them visibility in the first place. Common Nexus exists to close that gap.

Principles

Clarity over complexity
Focus is rare and valuable
Serve the mission, not the vendor
Generalists thrive in ambiguity
Compliance is a byproduct of architecture
Systems shape behavior
Visibility is the first control
Exposure you haven't mapped is exposure you can't govern
Ownership must be explicit

Writing

I write about infrastructure, data governance, and the patterns behind how organizations lose visibility over what matters — alongside personal essays on identity and leadership.

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Background

Madrone Technology Group
President; COO & Founder · 2019–2025
Built and led an infrastructure and cybersecurity firm serving organizations with complex compliance requirements. Directed data center strategy, hybrid-cloud modernization, and reliability architecture for regulated environments. This is where the data sovereignty thesis took shape.
Together Labs (IMVU)
Sr. Engineering Manager · 2009–2022
Thirteen years directing IT and infrastructure operations for a platform serving millions of users globally. Managed on-prem, cloud, and edge environments — the full stack that generates the visibility and governance challenges Common Nexus now addresses.
Community Infrastructure
Co-Founder & Organizer · 2005–2024
Co-organized SuperHappyDevHouse and helped build Hacker Dojo from early setup through board leadership — two of Silicon Valley’s longest-running independent technical communities. Watch the documentary.
Rwanda National ISP Deployment
IT Consultant · 2004
Led a six-person U.S. team deploying national internet infrastructure for Terracom SARL — fiber, wireless, and WAN acceleration under constrained conditions. This is where the career started.