Rootstock Philanthropy | 732 followers on LinkedIn. Let's Grow Together. | Rootstock was founded to bring our creativity, passion and global perspective to your organization without the burden of costly overhead, unnecessary travel, or the loss of your most precious asset: your time. A bit about our practice areas are below: MAJOR AND PRINCIPAL GIFTS Never in history has principal giving been more important to organizational ability. And today's modern donor has high expectations for demonstrated impact, gift reporting, bespoke engagement and stewardship, and yet is faced with more giving options than ever.