- Indiana Nut Growers Association - Non profit organization growing hardy nut and fruit trees, as well as advancing their cultivation and propagation.
- Northern Nut Growers Association - American-based group provides information on cultivation of almond, chestnut, hazelnut (filbert), pecan, pistachio, and Persian (English, Carpathian) walnut trees as well as of American native fruits the persimmonn and pawpaw.
- Nutgrowers Ring - Webring featuring amateur grower organizations and specialist nut nurseries.
