# Cardinal Partners

> Cardinal Partners is a VC fund in Princeton backing Health Care and Medical. See 41 investments, check sizes, portfolio and contact details. Updated Aug 2026.

- Type: VC Fund
- Location: Princeton, United States
- Total investments: 41
- Last investment: Sep 2017
- Lead investor: 15%
- Last updated: Aug 2026
- Website: http://www.cardinalpartners.com

Cardinal Partners is a venture capital partnership focused exclusively on healthcare investing.

## Contacts

5 contacts available for Cardinal Partners. Shizune tracks 4 team members at Cardinal Partners. Sign up free to unlock them: https://app.shizune.co/sign-up/investor-profiles/find-team-emails/cardinal-partners?utm_source=investor_profile

## Investment focus

### Industry

| Industry | Investments | Share |
| --- | --- | --- |
| Health Care | 21 | 51% |
| Medical | 6 | 15% |
| Biotechnology | 6 | 15% |
| Pharmaceutical | 6 | 15% |
| Hospital | 5 | 12% |

24 industries tracked in total.

### Stage

| Stage | Investments | Share |
| --- | --- | --- |
| Series C | 12 | 29% |
| Series B | 10 | 24% |
| Funding Round | 5 | 12% |
| Series A | 4 | 10% |
| Series D | 4 | 10% |

8 stages tracked in total.

## Team

| Name | Title | Investments | Profile |
| --- | --- | --- | --- |
| John Clarke | General Partner & Founder | 7 | https://shizune.co/investors/profile/john-clarke-4 |
| Kent Marquardt | General Partner | 0 | https://shizune.co/investors/profile/kent-marquardt-2 |
| Thomas G. McKinley | General Partner | 5 | https://shizune.co/investors/profile/thomas-g-mckinley |
| Jonh J. Park | Partner & CFO | 0 | https://shizune.co/investors/profile/jonh-j-park |

## Investments

| Company | Description | Amount | Stage | Date | Website |
| --- | --- | --- | --- | --- | --- |
| Prealize Health | Prealize Health uses machine learning to transform healthcare from reactive to proactive so that more people can live healthier lives.The company identifies next year’s new high-cost members before a high-cost event occurs. And work with clinician teams to precisely target interventions that improve the quality of care and contain costs. Prealizeempowers Health Plans, Employers, and Providers to see around the corner by predicting the what, why, and when of future risk.The company was founded in 2015 and based in Palo Alto, California. | $6.1M | Series A | Sep 27, 2017 |  |
| lifeIMAGE | LifeIMAGE is an online network that enables individuals to exchange medical images. LifeIMAGE is interoperable with the hospital EMR to provide integrated access to medical images, from anywhere. Clinicians can exchange medical images with patients and providers, anywhere. It was founded in 2008 and headquartered in Newton, Massachusetts. | $5.1M | Series D | Sep 24, 2015 |  |
| Ivenix | Ivenix is a medical technology company that develops a next-generation infusion management system. It is a venture-backed medical device company with a vision to transform infusion delivery in every care setting, globally. The company is focused on bringing its first product to market, a new and innovative infusion management system for hospitals.The system combines integrated state-of-the-art information technology and simplicity with an adaptive fluid delivery platform that continuously measures flow. The company was founded in 2007 and is headquartered in Amesbury, Massachusetts. | $42M |  | Sep 01, 2015 |  |
| Cureatr | Cureatr develops a cloud-based medication management software to optimize patient care. It offers healthcare management services that focus on post-discharge medication reconciliation and other medical services triggered by real-time events. | $13M | Series B | Jun 25, 2015 |  |
| lifeIMAGE | LifeIMAGE is an online network that enables individuals to exchange medical images. LifeIMAGE is interoperable with the hospital EMR to provide integrated access to medical images, from anywhere. Clinicians can exchange medical images with patients and providers, anywhere. It was founded in 2008 and headquartered in Newton, Massachusetts. |  |  | May 28, 2015 |  |
| Teladoc | Teladoc is a Teladoc Health brand, connects people to the right care when they need it most. | $50M |  | Sep 23, 2014 |  |
| Teladoc Health | Teladoc is a mission-driven organization, modernizing how people access and experience healthcare with a focus on high quality, lower costs, and improved outcomes around the world. The company’s award-winning, integrated clinical solutions are inclusive of telehealth, expert medical opinions, AI and analytics, and licensable platform services. Withmore than 2,000 employees, the organization delivers care in 125 countries and in more than 20 languages, partnering with employers, hospitals and health systems, and insurers to transform care delivery. | $50.3M | Series C | Sep 18, 2014 |  |
| aTyr Pharma | aTyr Pharma is a biotherapeutics company that discovers and develops protein biologics for human therapeutics. The company has established a dominant intellectual property estate surrounding Physiocrine-based compositions and potential therapeutic applications. aTyr’s key programs are focused on immunomodulation disorders in the areas ofinflammation and immunity and are in preclinical development. The company's primary focus is ATYR1923, a clinical-stage product candidate which binds to the neuropilin-2 receptor and is designed to down-regulate immune engagement in interstitial lung diseases.The privately held biotech was founded by The Scripps Research Institute Professor Paul Schimmel, a leading aminoacyl tRNA synthetase scientist, and is backed by top life sciences investors Alta Partners, Cardinal Partners, Domain Associates and Polaris Ventures. | $49M | Series D | Jul 29, 2013 |  |
| Sapphire Digital | Sapphire Digital empowers everyone to shop for their health care like an expert. Their integrated high-tech, high-touch platform helps people select better, more affordable care. Sapphire Digital leads the market with incentive and engagement programs proven to drive new levels of activation. Their solutions achieve measurable and sustainablesavings for consumers, employers and health plans. Over 280 million people each year rely on Vitals to help them decide on their care with confidence. | $22M | Series C | Jun 18, 2013 |  |
| QPID Health | QPID Health 's clinical insights software solution is built on the QPID platform, originally developed at the Massachusetts General Hospital to make it easier for clinicians to get value from the patient information stored in electronic health records. The company addresses the urgent need to generate value from the huge investment made inEHRs and the growing mass of electronic clinical data. QPID is EHR agnostic, and automatically delivers context-sensitive information from patient records into point of care and care planning workflows. QPID drives higher clinician productivity and more informed care decisions, for improved patient outcomes and lower costs. The QPID platform uses natural language processing (NLP), machine learning, and a library of thousands of clinical concept searches designed to retrieve digests of clinical information that match how a clinician thinks. Founded in 2013 by Dr. Michael Zalis and Dr. Mitch Harris, QPID is based in Boston and backed by Matrix Partners, Partners Innovation Fund, Massachusetts General Physicians Organization and Cardinal Partners. | $4.4M | Series A | Mar 20, 2013 |  |

10 of 41 investments shown.

## Co-investors
- [Icon Ventures](https://shizune.co/investors/profile/iconventures) — VC Fund, 5 deals together
- [Kleiner Perkins](https://shizune.co/investors/profile/kleiner-perkins-caufield-byers) — VC Fund, 4 deals together
- [Polaris Partners](https://shizune.co/investors/profile/polaris-partners) — VC Fund, 4 deals together
- [Atlas Venture](https://shizune.co/investors/profile/atlas-venture) — VC Fund, 3 deals together
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund, 3 deals together
- [LRVHealth](https://shizune.co/investors/profile/long-river-ventures) — VC Fund, 3 deals together

## Similar investors

### Similar stage
- [Sequoia Capital](https://shizune.co/investors/profile/sequoia-capital) — VC Fund
- [New Enterprise Associates](https://shizune.co/investors/profile/new-enterprise-associates) — VC Fund
- [Bessemer Venture Partners](https://shizune.co/investors/profile/bessemer-venture-partners) — VC Fund

## FAQ

### What does Cardinal Partners invest in?

Cardinal Partners invests primarily in Health Care, Medical and Biotechnology startups, most often at Series C and Series B stage. Most of the 41 investments tracked by Shizune back companies in United States. The Investment Focus section breaks down every industry, stage and country in the portfolio.

### How do I contact Cardinal Partners?

Public channels for Cardinal Partners include the website linked on this profile. For a verified work email and phone number, create a free Shizune account — contact data is searched across 20+ sources and validated before delivery, so your outreach lands in the right inbox.

### Who are the partners at Cardinal Partners?

The team at Cardinal Partners includes John Clarke (General Partner & Founder), Kent Marquardt (General Partner) and Thomas G. McKinley (General Partner). The Team section lists each member with their title, investment count and links.

### Is Shizune's investor data accurate?

Yes — every stat on this profile is calculated from confirmed public funding rounds monitored across hundreds of sources since 2020. This profile was last refreshed in Aug 2026 and is updated monthly. Spotted something off? Use the “Suggest an edit” link near the top of the page.

# About Shizune
Shizune.co is an investor database. Core features:
- 48,091 startup investors (angels, VCs, accelerators, and others)
- Email, phone, LinkedIn (for intros), socials, and other contact data
- Updated daily from public funding news
- CSV and Excel export

The User can access the full database FOR FREE after signing up: shizune.co