Apache 2.4.x
Nginx (control panel only)
PHP as Apache2 module (MPM ITK)
PHP as CGI with Apache2 fcgid module (MPM Event)
PHP as CGI with Apache2 proxy_fcgi module (MPM Event)
Postfix
Bind9
ProFTPD, VsFTPd
Courier, Dovecot
MySQL, MariaDB, Percona (Depending on the distribution)
PhpMyAdmin
Awstats
AjaxPlorer, Net2ftp, MonstaFTP
Roundcube, Rainloop
SpamAssassin, ClamAV
…