A common situation: you have a list of two or three hundred people, a webinar in a month, and a target of a hundred attendees. The instinct is to buy ads. That is usually the wrong first move.
Start with the arithmetic
For a free webinar to a warm list, registration rates of five to ten percent are typical. Two hundred subscribers gets you ten to twenty registrations. Attendance is typically between a third and a half of registrations, so that is perhaps five to ten people in the room.
To get a hundred attendees you need somewhere between two hundred and three hundred registrations. Your list cannot produce that. So the question is not how to email harder, it is where the other people come from.
Borrowed audiences beat bought ones
For a small list, the fastest path is usually somebody else's audience.
A guest with their own following. Someone who will co-host and promote to their list. This routinely doubles or triples registrations, and it costs nothing but the ask and a share of the spotlight.
Communities where your audience already gathers. Slack groups, forums, subreddits, professional associations. Read the rules, contribute before you promote, and post something genuinely useful rather than a link.
Partner newsletters. Adjacent businesses serving the same audience without competing often have a slot going spare and will trade.
All three take more time than launching a campaign and produce better-qualified attendees, because somebody the audience already trusts has vouched for you.
Then use paid, narrowly
Paid social works for webinars, but not the way it works for consumer events. You are looking for a specific professional audience, so broad reach is wasted money.
Run retargeting first: people who visited your site, watched a previous session, or opened recent emails. Small audience, low cost, high intent. Expand to cold targeting only once retargeting is exhausted, and expect a higher cost per registration when you do.
Registration is not attendance
Half your registrants will not show up. This is normal and it is partly fixable.
- Confirmation email immediately, with a calendar invite attached
- Reminder 24 hours before
- Reminder one hour before, with the join link in the first line
That last one moves attendance more than anything else you can do. People intend to attend and then get busy. An email at the right moment with a link they can tap converts intention into attendance.
Record it, and say so
Telling people upfront that a recording will be sent removes the reason to skip registering when they have a clash. It slightly reduces live attendance and substantially increases registrations, which is the right trade for a small list, because the registration is the asset. Those people are on your list for the next one.
Which is the real point. Your first webinar to two hundred people is not judged on the room. It is judged on whether the list is bigger and warmer afterwards.
Related.
TikTok for event promotion: when it beats Meta
The event types where TikTok reliably produces a lower cost per registration, and the ones where it does not.
Why your event page leaks registrations
Five reasons an interested visitor lands on your ticket page and leaves without buying, in the order worth fixing them.
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