These are the non-monetized free submission directories that does not charge the users to post anything on their website. These websites have the purposes other than earn money.
All Tech Conferences
Tech Events Directory
This is a simple and elegant site that is targetted for events of the technological categories. It aims to let its users find the right tech events. Events submission is also allowed. IT offers a way to the event owners to promote their events by getting listed on their site.
Purpose: The regular event website, but targetted for events of a specific type. This makes it very easy for users of a certain interest-group to search for the event they want. It allows free submission and search for the events.