I have developed around 5 WordPress plugins and several Joomla extension in a span of 5 years. All are SaaS based and are highly rated. Here are the links to a few top plugins I have designed & developed for WordPress Websites:-
EasyWebinar - http://www.easywebinarplugin.com/
Content Gorilla - http://content-gorilla.com/
WP Backup Plus - http://wpbackupplus.com/
Qbloc by Qwanz - http://wordpress.org/plugins/qbloc
SupremeWebinar - http://www.supremewebinar.com/
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