Cadcorp is a British software development company focused on geographic information system (GIS) and web mapping software. They maintain the Cadcorp Spatial Information System® (Cadcorp SIS®) - an integrated family of geospatial products comprising desktop, web, and developer products. They help organisations in the public and private sectors maximise their return on investment in geographic information by making it easier to share and distribute spatial data between people and between systems.
Caliper Corporation, founded in 1983 and headquartered in Newton, MA, develops state-of-the-art Geographic Information Systems (GIS) applications and transportation software. Caliper is a privately held corporation and is a leading developer of mapping, redistricting, transportation, and GIS software. Caliper is also a highly regarded consulting and R&D provider offering professional services in quantitative management consulting, transportation, and decision support systems development. Caliper software products are supported with extensive technical services in GIS applications and training, database development and software customization.
Geographic Information Services, Inc. (GISinc) is an award-winning location based technology and professional services firm headquartered in Birmingham, Alabama, with offices throughout the United States. Since 1991 their team of GIS professionals has been using Geographic Information Systems to solve staffing, technology, and business needs in markets ranging from Federal, State and Local Governments to some of the largest public and privately-held companies in the world.