- American Orchid Society
 - Close-knit association of growers, breeders, and fanciers -- amateur and professional alike. - Australasian Native Orchid Society (ANOS)
- Organisation devoted to the conservation, cultivation and scientific study of native orchids.
- Canadian Orchid Congress
- Cymbidium Society of America
- Founded to stimulate and extend the appreciation of cymbidiums, paphiopedilums, and other cool-growing orchids.
- Illinois Orchid Society@
- New Hampshire Orchid Society
- Meets on the second Saturday of each month.
- Orchid Society of Northern Transvaal (ONT)
- Activities, monthly meetings, and events, including the Orchids 2000 Show & Paphiopedilum Symposium.
- Orchid Society of Nova Scotia
- A hobby organisation dedicated to the cultivation, study, conservation, and enjoyment of orchids in the province.
- Orchid Society of Western Pennsylvania
- Contains information about meetings and activities related to growing orchids: propagation, horticulture, and perservation of orchid species and hybrids.
- Ottawa Orchid Society
- Meets monthly, and holds an annual orchid show in April at Nepean Sportsplex in Ottawa.
- Pacific Orchid Society
- Rhode Island Orchid Society
- Orchid culture and appreciation activities include monthly meetings, orchid shows, classes, trips, and newsletters.
- San Francisco Orchid Society
- Hosts the Pacific Orchid Exposition every year in San Francisco.
- Tallahassee Orchid Society, The
- Provides beginner level and intermediate level culture sheets.
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