Distributing a request for proposal can be a tricky equation. Too many responses will may make for difficult rfp process management. Yet, too little distribution will decrease competition and put the openness of the process in question. As a general rule more responses are preferred as they will yield the best competitive overview of your bidders. RFP distribution websites have greatly reduced the complexity of gaining widespread responses to your request for proposal.
The golden rule of distributing your request for proposal : The more information avaliable in the request for proposal, the better the responses.
It is vital to assume your RFP will be passed along in its basic document form only without any separate information. If you wish to run a private RFP process you must note on the first page of your request for proposal that your document is for private distribution only and responses from unauthorized parties will not be read. Likewise, include all information (especially contact information) in a single document for distribution.