About Radiant Science
Built by doctors and AI experts.
Radiant Science builds AI voice agents for healthcare: answering patient calls, booking appointments and handling requests so clinics never miss a booking. Our team has spent decades running clinics and building safe AI at the institutions clinicians already trust.
Our team trained and worked at
The people behind the work
We are a specialised team of medical and AI experts.
Founding core team
Dr Sigourney Waibel, PhD
CEO
Funded PhD in AI & Medicine at Imperial College; 12 years building hospital software; patented an AI spin-out predicting hospital complications; featured on the BBC.
Felix Geilert
CTO
MSc Computer Science; ML Engineer at Meta FAIR working on brain models; built compliant infrastructure at Microsoft; founded a video-security AI startup.
Luca Frost
Founding Engineer
Founded Whisp, an AI fact-checking company (#1 on the FEVER benchmark), backed by UHNWIs and Cambridge University. LLMs and information integrity.
Akram Yoosoofsah
ML Engineer
MSc Computing at Imperial College, researching interpretable neural networks in critical care; top-of-class BSc Biochemistry; ex-Deutsche Bank.
Medical experts
Dr Paul Bentley, PhD
UK Medical Director
Consultant Neurologist and Senior Lecturer; Clinical Director of Imperial College's Network of Excellence in Rehabilitation Technology; trained at Cambridge, UCL and Harvard.
Dr Arup Sen
UK Clinic Partner
Consultant Physician in Stroke, Geriatric and Internal Medicine at UCLH and in private practice; digital content advisor to the Royal College of Physicians.
Dr Alex Mathy
Consultant Neurologist
Consultant Neurologist with a background in Computer Science and Neuroscience; Lead Clinician of the Community Headache Clinic; works on EPR and digital transformation at the Great Western Hospital and in Oxford.
Hansen Tsui
Product Advisor
Healthcare product leadership; leads care-delivery product at Current Health / Best Buy Health.
Ryan Bentley
NHS Relations
GP Practice Manager and NHS Change Manager, Islington GP Federation; Institute of General Practice Management accredited; works with LSE and UCL.
Why we exist
Safe AI that answers every call.
Built by doctors and AI experts with decades of experience running clinics and creating safe AI. Our team previously trained and worked at institutions including Imperial College, Harvard, Cambridge University, the NHS, Meta and Microsoft.
We build AI that answers every call safely: no medical advice, no triage, every action logged and reviewed.
We're hiring. Build with us.
Stop losing bookings to voicemail.
See Paul handle your clinic's calls in a 20-minute demo, or drop us a line first. Live within days.