Decoding human datato enable better decisions
We're using AI to transform donated human organs into high-fidelity biological data, shared insight, and faster decisions.
Five Layers One Truth
Each layer of The Human Data Stack maps directly to a stage in the journey from raw biological signal to actionable clinical intelligence with AI embedded at every junction.
Unlocking theNext Generationof Medicine
Today, medicine still depends on models that only approximate human biology. That slows development, puts patient lives at risk, and leaves critical decisions to guesswork.
The Human Data Stack
End-to-end infrastructure for generating, integrating, and delivering human-biology insight at scale.
Our Founding Story
Revalia was founded by Yale scientists Greg Tietjen and Jenna DiRito after a decade of work together in organ perfusion and a simple realization:
organs don't have to be transplantable to be transformative.
Behind Every Discovery
Is a Gift of Hope
Our Promise
Dear Donors and Donor Families,
I want you to know that your decision — made in one of the most difficult moments of your life — carries a weight and a beauty that words can hardly capture. By choosing to donate, you have transformed your loss into a lifeline for others.
We hold your gift with the reverence it deserves. Every organ entrusted to Revalia is treated not as a specimen, but as a sacred trust — a piece of someone you loved deeply.
Working alongside organ procurement organizations and healthcare partners, we ensure that when an organ cannot save a life through transplant, it is given the chance to save thousands through discovery.
Your generosity lives on in every answer we find, every therapy we help create, and every patient whose life may one day be changed. You have given us the most profound gift — the chance to turn heartbreak into hope.
With deep gratitude and respect,
Greg Tietjen
Co-Founder & Chief Executive Officer
In partnership with leading organ procurement organizations (OPOs) and healthcare institutions, we ensure every donor gift is handled with the highest ethical standards, transparency, and respect throughout its lifecycle.
Expertise Across the Full
Human Data Stack
From transplantation and translational science to AI, hardware, software, and operations.
Greg Tietjen
Former Assistant Professor at Yale; pioneer of human organ research
Jenna DiRito
World leading expert in human organ research operations
Janeta Nikolovski
Formerly with Johnson & Johnson, 25 yrs Research & Product Development across Pharma, Biotech, Med Device, Digital and Consumer Products
Quentin Lashley
Former Senior Executive at Amazon, 20 years creating high performance teams in rapid growth organizations
Helen Hughes
Former Senior Executive at Amazon, 20 years creating high performance teams in rapid growth organizations
Bridge the Gap Between Biology & Breakthrough
Whether you're seeking information, sharing insights, or exploring potential collaborations, we value your time and look forward to hearing from you.
Share your current challenges and goals
See how our platform can address your needs
Build a custom solution for your pipeline
Recent Press
Regulatory setback or scientific signal? The case for human-relevant evidence
Regulatory setback or scientific signal? The case for human-relevant evidence
Regulatory setback or scientific signal? The case for human-relevant evidence
Regulatory setback or scientific signal? The case for human-relevant evidence
Join UsDecodingHuman Biology
We're building a new category at the intersection of biology, AI, and infrastructure.
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