The Event Sponsorship Proposal Letter Template aids organizers in crafting proposals that outline the benefits for potential sponsors. I am writing this letter to invite you to be a Co-Sponsor or Supporter of this event!Please attach the sponsorship packet to this form. If your sponsorship is approved, we will need information regarding ads and logo, etc. List of all available electronic forms needed during the admissions and registration process. In this article, we'll walk you through how to approach potential event sponsors and even share a handy sponsorship email template to get you started. Looking to secure sponsorships for your organization? Download these sponsorship letter templates to help you write a successful sponsorship letter! If you would prefer to complete all required forms electronically, please access the Back to.