WHO WE ARE
At Gray, we believe that no patient should wait because the system couldn’t adapt.
We’re building a future where operational bottlenecks, administrative burden, and siloed systems no longer stand in the way of timely, high-quality care.
Founded by a team of medical physicists and professors, Gray brings together deep expertise in clinical operations, data science, and systems engineering to transform how care is coordinated. At the core of its innovation is GrayOS, the industry’s first Care Orchestration Platform (COP). Purpose-built for complex care environments such as radiotherapy, systemic therapy, transplant, and cell therapy, GrayOS dynamically optimizes both sides of the capacity equation: resources and patient flow.
By combining advanced algorithms with human ingenuity, Gray enables centers globally to increase access to care, reduce administrative burden, and improve both staff and patient experience.
Meet Our Team
André Diamant
Co-founder & CEO
PhD Medical Physics, specialized in deep learning for outcome prediction in oncology.
Marc-André Renaud
Co-founder & CTO
PhD Medical Physics, specialized in optimization and radiation therapy treatment planning.
Louis-Martin Rousseau
Founding Advisor
Canada research chair in healthcare logistics (HANALOG).
Nadia Lahrichi
Founding Advisor
Polytechnique Montréal - healthcare logistics.
Jan Seuntjens
Founding Advisor
Head of Medical Physics - Princess Margaret Cancer Centre.
Raphaèle Piot-Rolland
VP Operations
Pharm D.
Elizabeth Ourumis
Head of Customer Success
Nick Tacik
Principal Data Scientist
Gat Manuel
Lead Developer
Alexandre Berryman
Data Scientist
Murray Christopherson
Developer
Valentin Becquaert
Technical Implementation Manager
