"The American Alliance of Museums' mission is to nurture excellence in museums through advocacy and service."

The Hispanic Society of America is a museum and reference library for the study of the arts and cultures of Spain, Portugal, and Latin America.

The New York Map Society offers educational, academic and research programs for anyone interested in maps.

The purpose of the Washington Map Society is to support and promote map collecting, cartography, and cartographic history.

The Rocky Mountain Map Society is a non-profit organization dedicated to the study and appreciation of maps and other items of cartographic interest.

Our mission is to preserve and disseminate historical and contemporary cartography, primarily of California, for members as well as the general public.

The Chicago Map Society is the oldest map society in North America, and has held monthly meetings at The Newberry since 1976.

The Texas Map Society was organized in November 1996 to foster the study, understanding, preservation, restoration, and collection of historical maps as well as the general history of cartography.

NEMO (North East Map Organization) is dedicated to serving as a unifying body for all who use, produce, collect, and market maps and cartographic information in the Northeast

The Big Train Operator Club is a group of enthusiasts, hobbyists, and collectors who devote much of their time and energy to Large-Scale trains.