The following sites can be used to find associations and organizations that represent particular fields or industries.
The American Society of Association Executives (ASAE) offers resources for locating professional associations in any field of interest. Select People and Groups from the upper menu, then Directories to reach the ASAE Online Directories. These free, searchable databases include ASAE members, listings of associations and organizations that do business with associations.
This is Yahoo’s list of labor unions covering many occupations and industries.
This is Yahoo’s entry to its list of organizations, including professional and trade associations.
Users can search or browse this list of scholarly, professional and labor organizations maintained by the University of Waterloo Library. Listings are limited to societies with scholarly, academic or research goals with preference given to membership-based societies with a national or international scope.
Unions.org is an index of union websites and union-friendly businesses in the United States and Canada. Users can search for union websites by union name or location.