Last updated 2026-07-20
- Raised $460M Undisclosed Round, Apr 2023
Portfolio
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in our dataset
Rounds participated
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Rounds led
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Rounds' value
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total disclosed, rounds participated
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About
Define Ventures is a venture capital firm headquartered in Silicon Valley that focuses exclusively on early-stage health tech companies. Founded by Lynne Chou O'Keefe, the firm invests in companies that leverage technology to transform healthcare delivery and improve patient outcomes, particularly those addressing value-based care and consumer-driven healthcare models. Define Ventures manages approximately $800 million in assets across six funds and actively partners with its portfolio companies, providing strategic guidance, talent recruitment, and capital raising support.
Portfolio
No portfolio companies in this dataset yet.
Investment activity
Portfolio by sector
Health Tech & Life Sciences1
Q&A
- What is Define Ventures' most recent investment?
- Define Ventures most recently invested in Hyro's Series C round in October 2025, which raised $94.6M.
- Which sectors does Define Ventures primarily focus on for investments?
- Define Ventures has shown a focus on the Health Tech & Life Sciences sector, with its sole recorded portfolio company, Hyro, operating in this area.
- What is the typical funding stage for Define Ventures' investments?
- Define Ventures has participated in a Series C round, as seen with their investment in Hyro.
- Can you name a notable company in Define Ventures' portfolio?
- A notable company in Define Ventures' portfolio is Hyro, which provides plug-and-play Conversational AI and Natural Language Automation.
- What is the business model of Hyro, a Define Ventures portfolio company?
- Hyro, a Define Ventures portfolio company, operates with B2B, B2B2C, and B2G business models.
Full data — links, identifiers, deals & radar signals (jobs, patents, research, more)
External links
| Website | definevc.com/ |
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Identifiers & details
| Founded | 2019 |
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