Investors / United States / Winter Street Ventures
Winter Street Ventures
Venture capital · Boston, MA, United States · North America
Winter Street Ventures is a venture capital firm focused exclusively on healthcare, connecting early-stage companies with incumbents such as health systems and health plans. It uses sandbox partnerships with health organizations to pilot and validate potential investments before going to market.
Invests inHealthcare & Biotech
In its own wordshealthcaretech-enabled serviceshealth systemshealth insurersdigital health
Your fit with Winter Street Ventures
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See how your round matches what it backs, point by point.
Or find every investor that fitsWinter Street Ventures lists 3 checked portfolio companies on its own site. Its largest theme is Healthcare & Biotech (100%). 100% of its companies are based in United States. It invests most often alongside 8VC, Allumia Ventures and Citi Impact Fund.
No funding round on record names Winter Street Ventures yet, so the figures come from its portfolio page.
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| 8VC | 1 |
| Allumia Ventures | 1 |
| Citi Impact Fund | 1 |
| Echo Health Ventures | 1 |
| Epsilon Health Investors | 1 |
| Flare Capital Partners | 1 |
| General Catalyst | 1 |
| Health Velocity Capital | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers3100%
- No longer answers00%
- Points to another company00%
- Parked or sold domain00%
A site that stops answering three checks in a row is counted as no longer answering; that is not proof of closure. A site that points to another company is often an acquisition.
Investment themes
share of its checked companiesThis firmAll checked companies
Show as a table
| This firm | All checked companies | |
|---|---|---|
| Healthcare & Biotech | 100% | 15% |
Co-investor network
who it backs companies with, and who they back togetherCompare Winter Street Ventures head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Funds
as stated on its sitePortfolio
3 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Cityblock provides healthcare services, including urgent care, primary care, mental health, and social care, to its members. | Healthcare & Biotech | Portfolio page | ||
| Greater Good Health provides senior healthcare services, including primary care and preventive care, to patients. | Healthcare & Biotech | Portfolio page | ||
| Veradigm provides data-driven healthcare solutions and insights to various stakeholders in the healthcare industry. | Healthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- winterstreetventures.com
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Companies checked
- 3
Rates come from what VCinfo has observed since observation_start. Firms tend to remove companies that closed, so early rates understate reality. A company leaving a portfolio page does not mean it closed or exited. An unreachable site means our checks failed, nothing more.
Get Winter Street Ventures' profile as data
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