Board director, executive committee Lincoln Center Performing Arts, since 1979. Board director Institute International Education, 1983-1989, honorary since 1994. Board director, vice-chairman Greenwich Center Arts, 2004-2009.
Member advisory board Connecticut Trust History Preservation, since 2007. Trustee National Trust History Preservation, 1988-1991, advisory council, since 1997, trustee emeritus, since 2005. Founding chairman Greenwich Green & Clean, Inc., since 1986, Greenwich Adopt-A-Road, since 1996.
Founding president Greenwich Tree Conservancy, since 2006. Chairman, co-founder Merritt Parkway Conservancy, since 2002. Vice president, executive committee Greenwich chapter National Association for the Advancement of Colored People, 1967-1969.
Trustee Citizens Budget Commission, New York City, 1971-1991, Jewish Communal Fund, New York, 1976-1981. Dean's council, Harvard University, 1987-1995. Chairman capital campaign and chairman dean's council Harvard Kennedy School Government, since 1995, overseers committee to visit Harvard Kennedy School Government, 1976-1982, 83-89, 90—, to visit Harvard Law School 1977-1983.
Executive committee Program Center Jewish Studies, 1974-1980. Board overseers Harvard College, 1989-1995, overseers committee university resources, since 1972, executive committee, since 1985. Dean's advisory committee Harvard Law School, 1988-1990.
Elected director Harvard Alumni Association, 1981-1983. Chairman schools and scholarship committee Harvard College, Greenwich, 1973-1979. Executive committee Association Better New York, since 1972.
Founding chairman New York leadership committee Harvard College Fund. Member Harvard Law School Association New York City (trustee 1968-1970, vice president 1973-1974), Association Bar City New York, Century Association, Links New York, The Hasty Pudding Institute 1770, AD Honorary, Harvard Varsity Club (Cambridge), Harvard Club New York City (board managers 1979-1981), Harvard Club (Fairfeld County, Connecticut, vice president 1974-1975, board directors 1976-1980), Bailwick Club (honorary life, founding president), Blind Brook Club, Connecticut Golf Club, Indian Harbor Yacht Club, Phi Beta Kappa.