That Conference is a premier developer conference located in Wisconsin Dells and held every year in August. Their Call for Speakers is open until March 14th; get your abstracts in now! https://www.thatconference.com/Sessions/CallForSpeakers
Also, you can help out by asking your company to sponsor to help support our community! Details can be found at https://www.thatconference.com/Sponsorship#SponsorshipOpportunities