Apache Tomcat - An open source software implementation of the Java Servlet and JavaServer Pages technologies
nginx - A high performance free open source web server powering busiest sites on the Internet.
Microsoft IIS - Internet Information Services is a web server for Microsoft Windows
vCenter Server - IaaS platform for managing and deploying virtual machines
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.
Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996