Developing Interactive Toolbar for browsers (IE, Chrome, Mozilla)

I'm looking for the best vendor who can develop special Toolbar for the most used internet browsers (IE, Chrome, Mozilla). This Toolbar goes hand by hand with online database - database and Toolbar cooperate together. Toolbar gets data from database in the real time and sends data to the database. Database is stored on the online server. Basically, the project consists from these things: - developing plug-in for browsers (Firefox, Chrome, IE, etc.) - Toolbar communicate on the online basis with the database hosted on the server - Toolbar sends and receives data to the database server - users (who has installed the Toolbar) can set their profile setting in the web interface I demand signed NDA to reveal more information about this project.