信用協同組合
Credit unions in the United States have traditionally used a state/national trade association relationship that aligns credit unions with state credit union leagues, followed by national affiliation with the Credit Union National Association (CUNA) of Madison, Wisconsin. Federal credit unions may also be members of the National Association of Federal Credit Unions (NAFCU). Credit unions can also participate in a credit union service organization (CUSO) that provides shared resources to member credit unions such as call centers, lending teams, and data centers. Participating in a CUSO allows credit unions to provide additional services to customers such as business and commercial real estate lending.