After you have spoken to the 1st caterer on the list you should have a pretty good idea of what information is needed from you and what questions you need to ask the other caterers. Listen carefully and write down notes from the discussions with each caterer so you can refer to them later. If during your conversation with a caterer a question arises that was not asked of another caterer, call that caterer back and ask them the question. It is only way you will get an accurate picture of who will be providing the most complete service at the best price. In addition to general information, you will also want to know some details that will impact your final costs.
Caterers come and go.
Make sure they do not go with your deposit. Most catering companies that do not make it end up folding within the 1st 12 to 18 months of business. Consider their track record before handing over a significant deposit. A caterer who is familiar with the facility knows what is required for efficient service of your guests and knows the mechanics of the facility which means that there is less probability of mistakes, oversights or duplications of service. A caterer who is familiar with the facility can also advise you relative to other possible oversights or service duplications which will end up saving you unnecessary expense and headaches.