How To Write A Letter To Get Sponsorship . You should use the right structure or it won't look professional. Help us with [organization’s mission] with this year’s [event name] dear [sponsor’s name], my name is [name] and i am the [position] for [organization]. Vendor Sponsorship Letter in Word and Pdf formats from www.dexform.com Do not abbreviate the date. Sponsorship letter for charity event. As you comb through your draft sponsorship letter for the dozenth time (or maybe the fiftieth), make sure you follow these best practices for the greatest success.