Association football | association football | Forward (association football) | Goalkeeper (association football) | Defender (association football) | World Trade Center | National Basketball Association | American Association for the Advancement of Science | Association of Tennis Professionals | American Library Association | World Boxing Association | National Collegiate Athletic Association | American Association | International Finance Corporation | American Heart Association | World Trade Organization | trade union | National Association of Intercollegiate Athletics | National Rifle Association | International Development Association | United Nations Conference on Trade and Development | National Association for the Advancement of Colored People | American Bar Association | Philippine Basketball Association | American Medical Association | Finance | International Air Transport Association | World Federation of Trade Unions | North American Free Trade Agreement | International Confederation of Free Trade Unions |
Aguirre has served on numerous professional and civic boards, including the Texas Children's Hospital, Texas Bar Foundation, Operación Pedro Pan Foundation, Bankers Association for Finance and Trade, and the Houston chapters of the American Red Cross and the Salvation Army.