Dreier also became chairman of the Annenberg-Dreier Commission at Sunnylands, which aims to promote the free flow of goods, services, capital, information, ideas, and people throughout the greater Pacific. He is a distinguished fellow at the Brookings Institution, a member of the Council on Foreign Relations, and a leading member of the board of directors of the International Republican Institute. He also serves on the boards of the Los Angeles Mission Foundation and James Madison's Montpelier. Dreier is an executive producer of the 2020 documentary "Ending Disease".