American Association for Geodetic Surveying  “AAGS is the professional society of scientists and other professionals overseeing the development and use of Earth-referencing systems.”

American Geographical Society “The American Geographical Society is an organization of professional geographers and other devotees of geography who share a fascination with the subject and a recognition of its importance.”

American Geophysical Union  “AGU is a worldwide scientific community that advances, through unselfish cooperation in research, the understanding of Earth and space for the benefit of humanity.”

American Library Association “The American Library Association is the oldest and largest library association in the world, with more than 65,000 members.”

Association of American Geographers “The Association of American Geographers (AAG) is a scientific and educational society founded in 1904. Its 10,000 members share interests in the theory, methods, and practice of geography and geographic education.”

American Society for Photogrammetry and Remote Sensing  “to advance knowledge and improve understanding of mapping sciences to promote the responsible applications of photogrammetry, remote sensing, geographic information systems (GIS), and supporting technologies.”

Cartography and Geographic Information Society  “to support research, education, and practice to improve the understanding, creation, analysis, and use of maps and geographic information to support effective decision-making and improve the quality of life.”

Geographic and Land Information Society  “The mission of GLIS is to encourage the appropriate use of surveying and mapping technologies in the development and use of geographic and land information systems.”

Geographical Association (UK) “The Geographical Association (GA) is a subject association with a mission to further the teaching of geography and to communicate the value of learning geography for all.”

Geographic Society of America “The mission of GSA is to be a leader in advancing the geosciences, enhancing the professional growth of its members, and promoting the geosciences in the service of humankind.”

Geography Alliance Network “The Geography Alliances, which operate as grassroots organizations, along with Education & Children's Programs and other key partners, work to promote geography education at local, state, and national levels.”

Institute of Australian Geographers “The Institute of Australian Geographers (IAG) is the principal body representing geographers and promoting the study of geography in Australia.”

International Federation of Library Associations (Geography and Map Libraries Section) “…an international forum to promote and coordinate the collection, storage and access to geographic and cartographic information.”

National Center for Geographic Information & Analysis “The National Center for Geographic Information and Analysis is an independent research consortium dedicated to basic research and education in geographic information science and its related technologies, including geographic information systems (GIS).”

National Council for Geographic Education “The National Council for Geographic Education works to enhance the status and quality of geography teaching and learning.”

National Society of Professional Surveyors  “NSPS provides the platform by which members can share their thoughts and opinions about our common interests through business meetings /committees, regional groups, and student chapters.”

North American Cartographic Information Society  “…an organization comprised of specialists from private, academic, and government organizations whose common interest lies in facilitating communication in the map information community.”

Royal Canadian Geographic Society “The Royal Canadian Geographical Society is dedicated to imparting a broader knowledge and deeper appreciation of Canada — its people and places, its natural and cultural heritage and its environmental, social and economic challenges.”

Royal Geographic Society “…the largest and most active of the scholarly geographical societies in the world.”

Society for the History of Discovery  “…to stimulate interest in teaching, research, and publishing the history of geographical exploration.”

South Carolina Geographic Alliance “The South Carolina Geographic Alliance is a network of K-12 educators and university geographers using geography to improve the education of our children.”

Teach Earth  “…to provide outstanding resources and programs for teaching and learning about Earth system science.”

University Consortium for Geographic Information Science  “To serve as an effective, unified voice for the geographic information science research community; To foster multidisciplinary research and education; and To promote the informed and responsible use of geographic information science and geographic analysis for the benefit of society.”

Organization descriptions come from that group’s website.