Macmillan Cancer Support is one of the largest British charities, providing specialist health care, information, and financial support to people affected by cancer. Through its Macmillan Ventures arm, it also runs an impact investment fund backing early-stage startups innovating in cancer care.
62% of their portfolio is in Healthcare. Deal activity decreased year-over-year (1 deal in the last 12 months vs 2 prior). Average disclosed round size is $15.8M (across 4 rounds with reported amounts).
Portfolio
8
Fund Size
$38M
Top Stage
Seed
Last 12 Mo
1
Portfolio Breakdown
Stage Distribution
Sector Distribution
Investment Activity
DealsAvg Round Size
Portfolio
8 investments
| Company | Round | Amount | Date |
|---|---|---|---|
 Infinitopes | Seed | $35.1M | Jan 2026 |
 Perci Health | Seed | — | Jun 2025 |
| OOxford Cancer Analytics (OXcan) | Series A | $11M | Jan 2025 |
 Dxcover | Unknown | $6.2M | Jan 2025 |
 Oxford Cancer Analytics | Series A | $11M | — |
| 552North | Unknown | — | — |
 52 North | Seed | — | — |
 52North | Growth | — | — |
Top Co-Investors
Cancer Research Horizons3 shared
Cambridge Enterprise3 shared
Octopus Ventures2 shared
Meridian Health Ventures2 shared
Amplify Partners1 shared
Amplify Bio1 shared
Manta Ray Ventures1 shared
Guinness Ventures1 shared
We Venture Capital1 shared
OKG Investments1 shared
Civilization Ventures1 shared
Bek Ventures1 shared
Digitalis Ventures1 shared
Plug and Play Tech Center1 shared
Cross-Border Impact Ventures1 shared
Future Planet Capital1 shared
Eos Advisory1 shared
Crista Galli Ventures1 shared
Parkwalk Advisors1 shared
Cambridge Angels1 shared
Last updated: 7 October 2026