I am planning on holding an event for entrepreneurs in London (100 people max) and I need some help. What is the key factor between an event being successful or not. Do I need to pay for promotion on eventbrite and if so how much so I pay for as a budget. I have looked into mentorship but I feel that like may of these things , they get their info from here or they do not disclose what what works for them.
Where else can I promote the event other than Eventbrite, Meetup, Kwickweek, Timeout, Billeto?
Any help would be great to prevent noshows.