AI uses pilot-style checklists to help doctors decide safely
This article is a part of Startup Spotlight, a series that features young, up-and-coming startups.

Image credit: Timmy Loen
A heart surgeon, an airline pilot, and an institutional finance engineer identified a shared problem from their high-stakes fields. They saw medical software that failed to support doctors under pressure.
Together, they founded GreyDx.AI to build a clinical co-pilot, applying aviation safety principles to medical decision-making based in Singapore.
😟 Problem
Doctors are under pressure to see as many patients as possible, often squeezing complex consultations into just 15-minute slots. Most medical software focuses on storing records rather than supporting decisions, while generic AI tools offer quick answers without explaining their reasoning, a risk for patient care.
This issue is most critical for general practitioners and independent clinic owners. They often work in isolation without the resources of large hospitals, with high-quality clinical tools prohibitively expensive, while free alternatives are unsafe for clinical use.
💡 Solution
GreyDx.AI builds a “glass box” ecosystem with a proprietary AI engine that provides transparent, evidence-based reasoning for its suggestions. This allows doctors to verify the AI’s logic instantly.
The company offers two integrated products:
- GreyDx Mini: An AI-powered clinical co-pilot that explains its work. It presents a structured reasoning path, citing the medical logic used to reach a conclusion.
- GreyDx CMS: An intelligent clinic management system. It embeds the AI engine to supervise workflows, suggest safety checks, and flag conflicting data in real time.

Image credit: GreyDx.AI
📊 Market size
GreyDx.AI projects an annual recurring revenue of US$11.2 million by 2027. This is based on a bottom-up analysis of its target markets in Japan, Indonesia, Australia, and Thailand.
The company aims to capture 5% of 720,000 doctors and 10% of the 153,000 clinics across these four markets. This translates to 36,000 doctors at US$100 annually and 15,300 clinics at a baseline of US$500 per seat.
🤝 Team
- Sufian Saidon. Co-founder and CEO. A former airline pilot, he applies aviation safety protocols to clinical environments.
- Rio Adityo. Co-founder and CTO. He previously built scalable software at BlackRock, ensuring institutional-grade reliability.
- Dr. Zameer Abdul Aziz. Co-founder and medical expert advisor. A consultant heart surgeon, he provides clinical guidance to GreyDx.AI
🚀 Traction
🏆 Competition
💰 Financials
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