A professional organization of global positioning experts from the petroleum industry. Site offers advice and information about GPS, geodetic datums, map projection, and other aspects of location technology.

American Society of Photogrammetry and Remote Sensing: The imaging and geospatial information society.

Professional association for the "discipline aimed at managing geographic data by means of the science and technology used to acquire, store, process, display and distribute them."

Organization formed for the purpose of perpetuating the memory of the pioneer surveyor, Verplanck Colvin, and his work in the Adirondacks.

Official website with society news, information, proprietor list and meeting schedule.

A business and science office park for companies operating in the field of remote sensing, and associated technologies. Located near the Dutch National Aerospace Laboratory (NLR) in Flevoland, The Netherlands.

Working in the areas of surveying, geodesy, cartography and coordinate data management. Meetings are held twice yearly.

Membership is widely drawn from the education sector, statutory institutions, local authorities, public utilities and the commercial and publishing industry.