Can we find the speaker ourselves and contact him directly?
In theory, yes, in practice it is not always possible to do this. For example, well-known speakers often work only through agencies to ensure the quality and security of transactions. In addition, you will spend a lot of time and effort searching, collecting information, selecting candidates, negotiating, briefing, organizing, and at the same time you will not save money, since our services are paid for by the speaker. It's up to you.