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Venture capital firm

Define Ventures

Early-stage venture capital firm investing only in digital health companies

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About Define Ventures

Define Ventures is a venture capital firm that invests only in early-stage digital health businesses. Its founder and managing partner is Lynne Chou O'Keefe. The firm argues that the sector is moving away from single-purpose tools towards broader platform companies.

What Define Ventures offers

  • Early-stage investment — funding for young digital health companies aiming to change how healthcare works.
  • Founder events — it has held an inaugural Founders Summit that brought together digital health founders and chief executives to share lessons.
  • Content series — a collaboration series called Define Ventures X, with talks on topics such as growth and acquisition in healthcare.
  • Market commentary — published views on merger and acquisition activity in digital health.

Who it works with

The firm backs founders building digital health companies at an early stage, and draws on venture partners from the wider technology and health sectors.

Key facts

  • Focus: digital health only
  • Stage: early-stage investing
  • Leadership: Lynne Chou O'Keefe, founder and managing partner

Profile written by TrustList from the business's own published information, Oct 2026.

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