Lead Management System

I am looking for an experienced designer and developer to develop a lead management system for me. I will be providing this as a service so I need a main admin to manage all the accounts. Each account will have unique data and unique leads because this is a service. Accounts should have no relation to each other. You can see competitors offering this service at leadsquared.com and leadformix.com

I also have some unique features needed for this job. Please contact me for more details.