You can create sponsors template same as speakers by adding sponsors widget to a page with the help of an external plugin.
We recommend installing a plugin here:
Please have a look at https://wordpress.org/plugins/amr-shortcode-any-widget/installation/
You should add the Sponsors widget to ‘Widgets for Shortcode’ sidebar.
Then, add the following line of code to the page:
[do_widget “Vertoh Sponsor List”]
While we do not endorse the use of external plugins, this extension could help solving the problem.