Sit-down catering and buffet-style catering are serving types used at corporate events. Consider the type of gathering that you will be hosting. Then, consult with a catering supervisor about the menu and serving styles that they offer.
Your event could influence the type of menu that you will be serving. The proposed duration of the affair, plus the overall vibe of the gathering, may make it more practical to serve a small menu of items or a wide array of foods.