Mark Greer is Senior Manager of the CAF American Donor Fund, a donor advised fund which allows people who pay tax in the US and UK to claim tax relief in both countries on all their giving. He leads a team that works with high and ultra high net worth donors managing annual giving of around $90m. Mark was previously Philanthropy Director at UK Community Foundations and CEO of the Beacon Awards for Philanthropy, a UK awards programme that celebrates and promotes excellence in philanthropy. Mark lives in London with his American wife and their dual national children.