We need a email list (confirmed emails) of the top IT and Healthcare staffing agencies. We are looking for the top 200 agencies that place senior project managers or program managers with large organizations for long term projects. Examples are: Ajilon, Catalyst Search, Intellisource, Robert Half, Volt. We need the list tested to ensure that we have valid addresses. We will be using this list to market some of our senior consultants to work as 1099 workers through these agencies to their clients.