This letter invites the recipient to an event sponsored or organized by your company.
1234, Main Street
Boston, MA 02123
<Recipient Address Goes Here>
Abc Company is continually trying to give something back to the community. In that spirit, we're <company role> <event name> on <event date and time> at <event location>. It promises to be an evening of fun and good deeds, benefiting <beneficiary of the event>. Dress is <dress style>.
I look forward to talking with you at <event name>. Please RSVP by calling <RSVP number> See you there!
encl: <List of enclosed items goes here>