OpenTileServer - This script is for building a basic tile server with OpenStreetMap data.
SuperMap iServer - A Cloud GIS application server based on high-efficiency cross-platform GIS kernel, having the functions like 2D & 3D integration service publishing, management and cluster, providing multi-layer extension development abilities.
GeoWebCache - A java web application used to cache map tiles coming from a variety of sources such as OGC WMS in order to accelerate and optimize map image delivery.
Google Earth Enterprise - the open source release of Google Earth Enterprise, a geospatial application which provides the ability to build and host custom 3D globes and 2D maps.
GeoNode - Open Source Geospatial Content Management System.
Baremaps - An open source pipeline for producing Mapbox vector tiles from OpenStreetMap with Postgis and Java.