trade association

An industry trade group, also known as a trade association, is generally a public relations organization founded and funded by corporations that operate in a specific industry. Its purpose is generally to promote the industry through PR activities such as advertising, education, political donations, lobbying and publishing.
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a non-profit making association for organisations in the same industry e.g. The Institute of Practitioners in Advertising - it's a good source of marketing research information.

ASSOCIAZIONE DI CATEGORIA. ORGANIZZAZIONE DI CATEGORIA. ORGANIZZAZIONE PROFESSIONALE