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AIQuiet 4d · day 4

Heidi raises $100M Series C at $900M valuation, adds $240M growth capital

Australian AI care partner for clinicians closes equity round led by Blackbird plus separate growth investment from General Catalyst.

newest coverage 4d agosummary written 3d ago2 pieces Newswires

What to know

  • Heidi raised $100M in Series C at $900M valuation plus $240M in parallel growth capital, totaling $436.6M raised to date.
  • The startup supports 175M+ patient visits and 67M+ clinical hours across 190 countries; ARR reached $50M in April 2026.
  • Funds support shift from AI-driven documentation to 'agentic' capabilities—where AI executes clinical decisions under clinician oversight—plus regulatory and safety infrastructure for healthcare AI.

“We've backed Tom and the team since their pre-seed in 2021 and our conviction is greater than ever. The healthcare deficit won't be solved with generic AI solutions that clinicians ignore. Heidi invested early in deeply understanding what clinicians want.”

Michael Tolo, General Partner, Blackbird · DealStreetAsia ↗

Dr. Thomas Kelly Co-founder and CEO of HeidiBlackbird Lead investor, Series CGeneral Catalyst (Customer Value Fund) Growth investment leadHeidi AI care partner platform

Heidi raises $100M Series C at $900M valuation, adds $240M growth capital
dealstreetasia.com

How it unfolded 1 development · click the chart to see its coverage articles

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Sep 23Sep 24yesterdaynow · 9:20 AM ET
  1. 1

    Heidi shifting from documentation to agentic clinical action

    CEO Dr. Thomas Kelly outlined ambition to move beyond note-writing toward 'agentic capabilities' where AI completes clinical work under clinician supervision. Funds include investment in clinical evidence, quality management systems, and regulatory submissions required for healthcare AI.

    “From the day I started Heidi, the ambition was always bigger than writing doctors' notes. That's the shift we're now making: from documenting care to helping clinicians act on it.”
    — Dr. Thomas Kelly
    1. 2 outlets Australian healthcare startup Heidi raises $100m in Series C funding round

      first by DealStreetAsia, 4d ago · also FinSMEs

      1 more headline
  2. background

    Heidi discloses 175M patient visits, $50M ARR milestone — Company reported it has supported 175 million patient visits (up from 73 million at Series B) and 67 million clinical hours (more than tripling since September 2025). Annual recurring revenue reached $50 million in April 2026, up from $1 million two years prior.

  3. background

    Heidi secures $240M growth investment from General Catalyst — In parallel with the equity round, General Catalyst's Customer Value Fund committed $240M to fund go-to-market expansion and scaling. Heidi has now raised $436.6M total since founding.

  4. background

    Heidi closes $100M Series C at $900M valuation — Melbourne-based AI care partner platform raised $100M in Series C led by Blackbird, with participation from Phoenix Court, Point72 Private Investments, and Headline. Valuation: $900M.