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About Thomas Kelly

Dr Thomas Kelly is co-founder and CEO of Heidi Health, which makes an AI medical scribe and clinical documentation platform that turns consultations into notes and letters. He trained and worked as a surgeon, and started Heidi in 2021 with Waleed Mussa, a colleague from an earlier startup, to cut the administrative work he saw weighing on doctors.

In September 2026 Heidi raised US$340 million: a US$100 million Series C led by Blackbird at a US$900 million valuation, and a US$240 million growth investment led by General Catalyst's Customer Value Fund. Heidi reports use in 190 countries and 110 languages, and is expanding into AI agents for clinicians.

On In The Blink Of AI with Georgie Healy, he explained how Heidi built its accuracy advantage and why clinicians trust it.

In conversation.

4 episodes

Start hereHow Heidi Health Built Its Accuracy Advantage (Re-release ep)A one-on-one on how Heidi built its accuracy advantage, why clinicians trust it and what medical agents mean for healthcare.

Go straight to the good bits.

Key moments from How to Build a Defensible AI Startup – With Dr. Thomas Kelly from Heidi Health.

  1. 3:20What is Heidi Health and how does it work?
  2. 7:30Doctors spend half their time on documentation
  3. 10:45How many Australians have unknowingly used Heidi
  4. 12:15Does every AI founder need a personal brand?
  5. 14:20Attention hacking vs. building real trust
  6. 18:00AI Hack of the Week: voice agents as personal tour guides
  7. 20:00Gemini’s financial report guessing game
  8. 23:00Late Stage Startup Bingo: Aussie AI edition
  9. 28:30The batch processing decision that made Heidi better
  10. 31:10Why 2% better quality led to 40% more adoption

The path so far.

  1. Now

    Co-Founder and CEO · Heidi Health

  2. Earlier · Startup

    Co-founder · Oscer

  3. Until 2021

    Surgical registrar · The Alfred

Sources: cnbc.com

Heidi Health on Day One

Heidi Health, which trades as Heidi, is a Melbourne-founded company that makes an AI assistant for clinicians.

2 people · 5 episodes
Heidi Health

Across the network.

Spot something wrong? Suggest a correctionUpdated 29 October 2026

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