(1) International and Regional Organizations

• International Cartogrophic Association (ICA)   
• International Society for Photogrammetry and Remote Sensing
• Geoscience & Remote Sensing Society 
• International Federation of Surveyors (FIG)
• Geographic Information Science Commission, International Geographica Union (IGU)
  

• The Association of Geographic Information 
• European Umbrella Organisation for Geographic Information (EUROGI)   
• American Society for Photogrammetry and Remote Sensing
• American Congress on Surveying and Mapping (ACSM) 
• Urban and Regional Information Systems Association (URISA)