Guy's & St Thomas' Foundation is an independent charitable foundation focused on creating a healthier society by addressing health inequities. They invest in people and ideas, partner with communities and hospitals, and use their assets to improve physical and mental health. Their target audience includes NHS staff and communities around Guy's, St Thomas', and Evelina London hospitals. The foundation's unique selling proposition is its long-term approach to health challenges, supported by a significant endowment, allowing for both financial returns and health impact investments[1][3][4].