Association management is a field of management which focuses on the management of associations. There are more than 25,000 national associations and 65,000 local, state or regional associations in the United States. These organizations employ more than 500,000 professionals. As in the US, in several other countries national societies of association managers exist. See the links below for the ones which exist in some nations belonging to the British Commonwealth. In Europe there also exists the European Society of Association Executives.