HealthQuest Capital
Redwood City, California, United StatesFounded 2012
HealthQuest Capital is a growth equity firm that provides capital to transformative healthcare companies, focusing on commercial-stage innovations across medical devices and technologies, diagnostics, healthcare services, and healthcare IT. The firm partners with companies driving improved patient outcomes and greater efficiency in healthcare delivery.
56% of their portfolio is in Healthcare. Deal activity decreased year-over-year (2 deals in the last 12 months vs 5 prior). Average disclosed round size is $58.1M (across 22 rounds with reported amounts).
Portfolio
23
Fund Size
$675M
Top Stage
Series B
Last 12 Mo
3
Team
David Kabakoff
Founding Senior Partner
John Johnson
Operating Partner
Nate Burns
Partner
Charlie Zhang
Tax Director
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
25 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Thyme | Series E | $125M | Sep 2026 |
 AnswersNow | Series B | $40M | Jan 2026 |
 Diana Health | Series C | — | Sep 2025 |
 Alpheus Medical | Series B | $52M | May 2025 |
| AAlpheus | Series B | $52M | May 2025 |
 HelloCare | Growth | $47M | Apr 2025 |
| Hhellocare.ai | Growth | $47M | Apr 2025 |
 OrganOx | Unknown | $142M | Jan 2025 |
 Royal Health | Unknown | — | Dec 2024 |
 Magnolia Medical Technologies | Growth | $46M | Feb 2022 |
 Lunit | Ipo | $61M | Nov 2021 |
 Rarecyte | Series B | $24M | Sep 2021 |
 Thirty Madison | Series C | $140M | Jun 2021 |
 Ajax Health | Growth | $100M | Sep 2019 |
| BBardyDx | Series B | — | Apr 2019 |
| AAjax Health II | Unknown | $85M | Apr 2019 |
| Magnolia Medical Technologies | Series C | $20M | Jan 2019 |
| AAjax Health II | Series B | $85M | Jan 2019 |
 Trice Medical | Series C | $19.3M | Jun 2017 |
 LineaGen | Series C | $15.8M | Jan 2015 |
 Pulmonx | Bridge | $66M | — |
 Clearsense | Series D | $50M | — |
 Inbound Health | Series B | $30M | — |
 Springbuk | Unknown | $20M | — |
 Castle Biosciences | Series F | $11.7M | — |
Top Co-Investors
Polaris Partners4 shared
LRVHealth3 shared
AlleyCorp2 shared
SightLine Partners2 shared
RTW Investments, LP2 shared
Bon Secours Mercy Health2 shared
BrightEdge2 shared
Brain Tumor Investment Fund2 shared
Samsara BioCapital2 shared
Mountain Group Partners2 shared
.406 Ventures1 shared
Norwest Venture Partners1 shared
Insight Partners1 shared
Bracket Capital1 shared
Northzone1 shared
Greycroft1 shared
Johnson & Johnson Innovation1 shared
Mousse Partners1 shared
Safeguard Scientifics, Inc.1 shared
Boldstart Ventures1 shared
Last updated: 9 September 2026