lighttpd - A secure, fast, compliant, and very flexible web-server that has been optimized for high-performance environments
Esri ArcGIS - ArcGIS provides contextual tools for mapping and spatial reasoning so you can explore data & share location-based insights. ArcGIS is the heart of the Esri Geospatial Cloud. Try ArcGIS for free with 21-day trial.
nginx - A high performance free open source web server powering busiest sites on the Internet.
QGIS - QGIS is a desktop geographic information system, or GIS.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996
Geopointe - Geopointe enables Salesforce users to gain spatial insights via maps and apply geography to business processes.