Investors / United Kingdom / Phase 4 Partners
Phase 4 Partners
Venture capital · London, United Kingdom · Europe
Phase 4 Partners, which presents itself as Phase4 Ventures, is a venture capital firm focused on healthcare. It invests in biotechnology, medical devices, digital health, diagnostics and life sciences, and says it provides strategic guidance and operational support alongside capital.
Invests inHealthcare & BiotechMedia & EntertainmentEnterprise Software
In its own wordshealthcarebiotechmedical devicesdigital healthdiagnosticslife sciences
Your fit with Phase 4 Partners
Four questions about your startup
See how your round matches what it backs, point by point.
Or find every investor that fitsPhase 4 Partners lists 4 checked portfolio companies on its own site. Its largest themes are Healthcare & Biotech (50%), Media & Entertainment (17%) and Enterprise Software (17%). 100% of its companies are based in United States. It invests most often alongside Aisling Capital, MVM Partners and NEA.
No funding round on record names Phase 4 Partners yet, so the figures come from its portfolio page.
Invests most often with
firms sharing its portfolio companiesShow as a table
| Share | |
|---|---|
| Aisling Capital | 1 |
| MVM Partners | 1 |
| NEA | 1 |
| Omega Funds | 1 |
| Reflex Capital | 1 |
| Rosetta Capital | 1 |
Its portfolio companies
where they are based, and what their own sites showSite status
- Site answers4100%
- 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 | 50% | 15% |
| Media & Entertainment | 17% | 4% |
| Enterprise Software | 17% | 8% |
| Education | 17% | 7% |
Co-investor network
who it backs companies with, and who they back togetherCompare Phase 4 Partners head to head
portfolio size, rounds, entry stages, themes and the companies both backThree or more firms at once: portfolio overlap.
Portfolio
4 companies checked against their own sites| Company | What it does | Themes | First round with it | Evidence |
|---|---|---|---|---|
| Acadia Pharmaceuticals advances treatment in neurological disorders and rare diseases with novel therapies | Healthcare & Biotech | Portfolio page | ||
| Avocode was a company that offered products that are no longer in service as of October 1, 2023 | Media & EntertainmentEnterprise Software | Portfolio page | ||
| Paratek Pharmaceuticals develops and commercializes new treatment options for complex medical issues, including infectious diseases and chronic rhinosinusitis. | Healthcare & Biotech | Portfolio page | ||
| Sunny Street develops an app for charitable giving | EducationHealthcare & Biotech | Portfolio page |
About this data
site last read 5 Nov 2026- Site
- p4p.tech
- Last read
- 5 Nov 2026
- Watching since
- 6 Nov 2026
- Companies checked
- 4
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 Phase 4 Partners' profile as data
Pull Phase 4 Partners' portfolio, co-investors and changes through one API key or MCP, open every portfolio row, compare it with other firms, and get an email when it adds a company or files a fund.
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- Full listsEvery portfolio row and two-firm overlap
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- AlertsFollow 5 investors for portfolio and fund changes
$ curl -H "X-API-Key: YOUR_KEY" \
https://api.vcinfo.io/v1/firms/p4p.tech
# also
GET /v1/firms/p4p.tech/portfolio
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