- ArcView(10)
- Coordinate Conversion(1)
- Development(4)
- FAQs, Help, and Tutorials(3)
- Map Servers(16)
- Utilities(8)
- Visualization(22)
- ad ERDAS, Inc
- erdas.com
- Creators of Imagine software.
- ESRI
- www.esri.com
- Offers free software, online mapping and GIS training, demos, data, product and service information, user scripts, and related information. Makers of ArcView, ArcGIS and ArcIMS.
4.6
(si*)
>2910
<10
8
- Azteca Systems Cityworks
- www.azteca.com
- Producers of a GIS-based work management system for public works, utilities, state, and local government.
4.5
(si*)
>18200
>640
6
- Geographic Resources Analysis Support System Geographical Information System (GRASS GIS)
- grass.osgeo.org
- An open source, free Geographical Information System (GIS) with raster, topological vector, image processing, and visualization functionality. Software and documentation downloads, Wiki, and newsletter.
4.3
(si*)
>710
>200
6
- Geographic Resources Analysis Support System
- grass.itc.it
- GRASS GIS is an open source, free software with raster, vector, image processing, and graphics production functionality.
4.2
(si*)
>710
-
6
- Intergraph Solutions
- www.intergraph.com
- AM/FM/GIS solutions for the utilities industry, including communications, gas, pipeline, electric, and water/wastewater.
4.2
(si*)
>590
-
6
- uDIG
- udig.refractions.net
- Open source desktop GIS tool built with Eclipse Rich Client technology.
4.1
(si*)
>70
>50
7
- MapInfo
- www.mapinfo.com
- Custom mapping and Internet solutions from a Troy-based company; user groups, demonstrations, news, freebies, and other technical and corporate information.
4.1
(si*)
>50
-
7
- Biodiversity
- www.diva-gis.org
- Free GIS software for biodiversity mapping.
4.1
(si*)
>270
<5
6
- Rhiza Labs
- www.rhizalabs.com
- Developer of online mapping software for exploring, visualizing and sharing information on the web. Products include Rhiza Insight and Rhiza Folio.
4.0
(si*)
>110
<5
6
- CARIS
- www.caris.com
- GPS field data collection utilities that provide spatial information and GIS solutions for marine and land based industries.
4.0
(si*)
>80
<5
6
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