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.
LiteSpeed Web Server - LiteSpeed Web Server (LSWS) is a high-performance Apache drop-in replacement.
Oracle Tuxedo - Oracle Tuxedo is an application server for C, C++, COBOL, Java and dynamic language applications in private cloud or traditional data center environments.
Apache Geronimo - Index
Resin - Resin is a modern and secure web and Java Application server developed under Caucho Technology.