 He was a member of many international non-governmental organizations, including a member of the Soviet Association of International Law (1958-1991); member of the Executive Board of the same association (1962-1970 and 1981-1990); member of the International Law Association (1962-1990); member of the American Branch of the International Law Association (1970-1976); President of the Rome Club in Georgia (since 1995); Director of the Institute of European Law and International Human Rights Law (since 2000); member of the European Society of International Law (2011-2012).Levan Aleksidze received state prizes and awards, including St. George's Victory Order (2013); the Presidential Order of Excellence (2010); Order of Honor (1996); Georgian state prize in science for a monograph