Altman has sat on the Board of Trustees of [[New York-Presbyterian Hospital]] since 2006,<ref name=NYP>{{cite web|title=Hospital Leadership - Board of Trustees|url=http://nyp.org/about/board-trustees.html|publisher=New York Presbyterian|accessdate=7 July 2019}}</ref>, Vice Chairman of the Board of the [[American Museum of Natural History]], and Chairman of New Visions for Public Schools. Additionally, he is a member of the [[Council on Foreign Relations]], a Director of [[Conservation International]],<ref>{{cite web|title=Roger C. Altman: Founder and Executive Chairman|url=http://www.evercore.com/team/2/all/20/bio/34/about/Executive-Team|website=Evercore|accessdate=7 December 2014}}</ref> and an Advisory Council member for The Hamilton Project, a [[Brookings Institution]] economic policy initiative.<ref>{{cite web|title=Advisory Council: Roger C. Altman|url=http://www.hamiltonproject.org/about_us/our_people/roger_c._altman/|website=The Hamilton Project|accessdate=7 December 2014}}</ref>
Altman is listed as a member of the Steering Committee of The [[Bilderberg Group]], a controversial group of influential business and government leaders who meet annually behind closed doors to foster dialogue between Europe and North America. He participated in all their conferences between 2008 and 2016.<ref>{{cite web|url=http://www.bilderbergmeetings.org/steering-committee.html |title=Steering Committee |publisher=Bilderberg Meetings |accessdate=2016-02-02}}</ref><ref>{{cite web|url=https://www.scribd.com/doc/15684752/Bilderberg-Meeting-2009-Greece-Complete-Members-List |title=Bilderberg Meeting 2009 Greece Complete Members List |publisher=Scribd.com |accessdate=2010-05-09}}</ref>
