Reo Onozawa
Founder, Green Tea LLC
Former Nomura Research Institute Consultant
Green Tea LLC runs on one human and countless AI agents. We deliver value that scales without headcount — no bottlenecks, no bloat.
Started as a white-hat security consultant at Nomura Research Institute — penetration testing, vulnerability assessment, and risk quantification for financial institutions. GIAC GWAPT certified.
From there, built depth in machine learning applied to real business problems: supervised learning (demand forecasting, credit scoring, churn prediction), unsupervised learning (customer segmentation), time-series analysis, causal inference, and reinforcement learning. Not a pivot to AI — a progression through it.
Generative AI is the next layer of that stack. RAG, AI agents, MCP integrations — built and shipped in production. The security background means these systems are designed from an attacker's perspective, not hardened after the fact.
Today that stack powers Green Tea LLC's core offering: five services that keep mission-critical systems running, anchored by Omamori — unified physical × cyber monitoring. Building intrusion, attacks, and server-room anomalies are correlated in one brain, so problems are caught before anything stops. The path runs from spec analysis and security assessment through continuous monitoring to safe remediation and rebuild.
Certifications
Strengths
Requirements Definition
Getting to the real problem by engaging stakeholders directly. Using AI-driven prototypes to surface issues early and accelerate alignment.
System Design & Development
Designing systems from both attacker and user perspectives. Zero Trust architecture with a clear-eyed view of the security-usability tradeoff.
Unified Monitoring & Operations
Correlating physical and cyber signals in one place so mission-critical systems keep running. Detection, judgment, and escalation are automated; execution stays under human approval, with evaluation metrics and improvement loops baked in from the start.
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