Once you have determined who to

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According to Gartner, a world leader in consulting and research in the market of new technologies, customers who perceived that the information they received from suppliers was useful to advance their purchasing work were 2.8 times more likely to experience a high degree of ease of purchase.

In other words, the better you understand your roles, the easier it will be for stakeholders to make a purchase decision. However, that doesn't mean you should focus all your efforts on those with greater seniority or buying influence. Everyone involved will have a say in any deal that eventually happens.
invite and verbally confirmed your availability, you should immediately set a founder email list date and time for your demo and send a calendar invitation or RSVP email to each person attending.

Don't forget to include all the information needed to log in or mark if you're presenting via webinar or video conference. You may also want to let guests you haven't connected with in person yet about the highlights of your company and its offering.
To prevent your hard work from being wasted, be sure to:
Allow enough time before the demo date to prepare and practice your presentation.
Contact your potential client the day before your event to reconfirm that he and his colleagues will attend.
They are prepared to reschedule if key decision makers have to postpone.

Remember, while it's important to do everything you can to make sure someone with the authority to make a purchase is present, your demo should be structured to have an impact on everyone in your audience.
Once you have determined who to
invite and verbally confirmed your availability, you should immediately set a date and time for your demo and send a calendar invitation or RSVP email to each person attending.