Logo featured on event landing page at top.
Exhibit table at event.
Mention at conference during opening statements each day.
Business cards, pamphlets, promotional materials placed in swag bags.
1 ticket to full conference.
1 ticket to pre-conference mixer event. 
Social media and email announcements with picture and link to your website.
2 Pre-recorded or live stream video or a combination of each that will promoted on social media. Video platform will be discussed and planned.