IndigoPerl - A binary build of Perl 5.6 for Win32 with an integrated Apache webserver for testing and developing CGI scripts. - http://www.indigostar.com/indigoperl.htm
Qub Group - Offering YeP-perl a Cygwin-Perl-port and DBI:DBD ODBC, Oracle, mSQL, perl5 with GUI, perl5 for Win32 plug and play distribution. perl5 modules, extesions and projects, Visual perl GUI debugger environment. - http://www.qub.com/group/
ActiveState Tool Corp. - Providing a Win32 Perl-port, Perl for ISAPI, a graphical Win32 Perl-Debugger and other professional tools for Perl developers. - http://www.activestate.com/