Wellcome Trust is a UK-based medical research charity that funds research with the ultimate aim of protecting and improving human and animal health. They fund UK and international research.
| Company | Date | Round | Size | Participants |
| Sirtris Pharmaceuticals | 3/05 | Series B | $27M | 6 |
| Sirtris Pharmaceuticals | 12/04 | Series A | $13M | 5 |
