The Ephemera society is for collectors and dealers of paper collectibles focuses on the preservation and study of ephemera.

The Guild is the largest American organization of master ship modelers and naval historians.

USMMA

The Olympin Collectors Club is dedicated to promoting Olympic pin trading -- one of the earliest Olympic traditions -- and collecting of Olympic memorabilia.

Asia Society is the leading educational organization dedicated to promoting mutual understanding and strengthening partnerships among peoples, leaders and institutions of Asia and the United States in a global context.

The New York City Police Museum is dedicated to preserving the history of the New York City Police Department, the worlds largest and most famous police service.

Our goals include sharing information, preserving the rights of animators, and promoting progress towards peace and understanding through our unified interest in the art of animation.

NYPC seems to be holding its own and even growing a little despite the current hostile environment due to a number of very loyal long-time members, and the shared passion for pipes and pipe smoking.

The Art Dealers Association of America (ADAA) is a non-profit membership organization of the nation's leading galleries in the fine arts.

Zeiss Historica is a nonprofit, educational organization that is dedicated to the research and preservation of the history of the Carl Zeiss optical firm, its affiliates, subsidiaries, people and products from its founding in 1846 to the present.