[header] How to attract sponsors [title] Develop a budget for your event. [step] Before you begin the search for sponsors, you should get an estimate of how much your event will cost. Determine how expensive it will be to do things like rent a venue, pay for advertising, cater food, hire security, and print t-shirts. 
Once you have a grasp on how much this will cost, you will have a better idea of what you need and what to ask for from sponsors. [substeps] Work with an accountant or your finance department to determine how much your event might cost.