Startup Digest is a newsletter with startup events. Create your account and login. Click to submit event (https://www.startupdigest.com/events/new) and post in all lists about your country and/or city.
In description use the same eventbrite info.
For link field, add “?utm_source=startupdigest” at the link end, for example: http://circuitostartup.com/event/london?utm_source=startupdigest.