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The National Greenhouse Manufacturers Association is a professional trade organization for the manufacturers and suppliers of greenhouses and greenhouse components.
NGMA exists to serve the interest of the greenhouse industry and its members, improve communication across the market, prepare and share practical construction information, and strengthen relationships between manufacturers, suppliers, and customers.
There are four classes of membership in the Association. Membership, other than honorary, university, or extension, is extended to the company rather than to an individual.
The Structural Manufacturer Membership Division shall consist of all companies incorporated in the United States whose primary business focus is the manufacturing of greenhouses in domestic U.S. facilities. Each company shall have one vote. Companies may be represented at meetings by more than one-person, but only one person shall be designated as having voting rights for the company.
The Component Manufacturer Membership Division shall consist of companies whose primary horticultural business focus is the manufacturing of products that are used to equip greenhouses. Each company shall have one vote. Companies may be represented at meetings by more than one-person, but only one person shall be designated as having voting rights for the company.
The Service Membership Division shall consist of all non-manufacturing firms whose primary horticultural business focus is the providing of services to the U.S. greenhouse industry. Each company shall have one vote. Companies may be represented at meetings by more than one person, but only one person shall be designated as having voting rights for the company.
The University and Extension Agent Membership shall consist of full-time professors at accredited universities and extension agents serving the horticultural industry. University and Extension Agent members may align themselves with and participate in NGMA meetings, task forces and committees. They have no individual voting rights and do not pay dues, but pay a nominal annual fee for correspondence.