National Groups/Organizations

URISA International – Urban and Regional Information Systems Association
GITA – Geospatial Information and Technology Association
AAG – Association of American Geographers
ASPRS – American Society for Photogrammetry and Remote Sensing – see info on Certified Photogrammetrist here
ACSM – American Congress of Surveying and Mapping

California URISA Chapters

Northern California Chapter of URISA
Central California Chapter to URISA
BayGeo (BAAMA) Chapter of URISA

URISA Groups

Southern California HAZUS Users Group

Other Southern California Organizations

CGIA – the California Geographic Information Association
California GIS Council – Serving LA and Orange County Government GIS users
Southern California Government GIS Users Group
CalGIS – Annual California GIS Conference
National Geospatial Technology Center for Excellence – A partner in Educational standards and student outreach
Women in GIS (WIGIS)

Geospatial San Diego
San Diego Regional GIS Council – Public Agency GIS Users Group
Orange County GIS Users Group
Orange County GIS Meetup
Inland Empire GIS Users Group – Serving San Bernardino, Riverside and East LA Counties
Coachella Valley GIS Users Group
Santa Barbara/Ventura GIS Users Group
SoCal Marine GIS Users Group