Use the speech as a reason to submit an article for a national journal or company intranet. Most association editors readily print articles by the presenters in order to publicize the event. Leverage your invitation. And yes, I'll change the names to protect the guilty and the innocent. Distribute the tape.
Many conferences tape the session to sell afterwards.
Research to customize. Interview them to customize your speech. Then send them a tape so they can experience their ideas through you. Springboard your new visibility. You can make this happen before the speech to generate interest in your topic.