Should I form an LLC to bid on County/Muncipal procurements?

My County publishes requests for bids for services, and often these requests are seeking just one person even though they are inviting corporations to apply--for example, there might be a request for one person to manage recreation programs or arts programs. Do you need to be a non-profit or profit corporation to bid, or does that depend on the rules of the particular gov't entity? If I formed an LLC, would that make me eligible or make it easier for me to enter the bidding process?