When event teams talk about audience growth, the conversation jumps straight to acquisition. New lists. More ad spend.
This fall I led a working lab with event marketers at Bear Analytics’ MeasureUP conference, and we spent almost none of our 70 minutes talking about new names. We talked about the growth already sitting in their registration systems — unsegmented, under-messaged, and in some cases never contacted at all.
Marketing budgets rarely grow as fast as the goals do. So before you ramp up spend, it’s worth asking a different question: who’s already in my database, and what have I actually said to them?
First, retire "we don't have enough data"
At the lab, we had everyone in the room, from teams with full engagement stacks to teams whose entire dataset was last year’s registration list in Excel. The method works for both, because a plain registration export holds at least seven behavioral signals: when people register, whether they’ve attended before, which pass they buy, which sessions they pick, whether they register alone or with colleagues, which promo code they use, and what they add on.
That’s behavior. Not demographics, not job titles — what people actually did. And it’s enough to find all three of the audiences below. If you have more data than that, great! You’ll be able to layer on even more behavioral insights. But this is enough to get started.
Audience one: Get them
People active in your ecosystem who have never attended your primary event. Members who renew every year but skip the annual meeting. Webinar regulars. Certification holders. Newsletter subscribers. They already know you, already engage with you — and they’ve never registered.
The instinct with prospects is to describe them by who they are. The more useful move is to study who your best attendees are, then go find their twins. Pull your most engaged attendees and look at what they share: titles, organization types, member tenure, the programs they touch. Profile the people who did the desired behavior, and those traits are searchable in your own database.
This isn’t a cold audience. It’s a warm one nobody has invited properly.
Audience two: Get them back
People who attended and stopped.
Finding this group costs nothing: match your registration lists across the last few years and flag everyone who appears in an earlier year but not the recent ones. Then separate the one-and-dones from the former regulars, because those are different stories. Someone who came once and bounced may have had a mismatch. Someone who came five straight years and stopped had a reason — and almost nobody has asked them what it was.
The message writes itself once you respect the history: these people already have a relationship with your event. “We noticed you weren’t with us last year” outperforms a generic promo because it’s true, it’s personal, and it acknowledges something they already own — the relationships, the familiarity, the member rate they’re leaving on the table.
Audience three: Get more
The people already coming.
Growth isn’t only headcount. Your current attendees have already said yes once, and the easiest yes to get is the next one: the expo-only attendee who upgrades to the full conference, the solo registrant who brings two colleagues, the session-goer who adds the workshop.
Look at the people who already took that next step. What do they have in common? When did they decide? That’s your map for inviting more attendees to follow them — and it’s a fundamentally warmer ask than any acquisition campaign, because the trust is already built.
Where AI can help
You don’t need a data scientist for any of this. You need better questions — and this is where AI earns a spot on your team. Give it a de-identified export and ask it to compare two groups across the fields you collect. Ask whether meaningful subgroups are hiding inside a broad audience. Ask whether a pattern holds across years or shows up once and disappears.
The worksheet from the MeasureUP lab walks through all three audiences — how to spot yours, what data you already have on them, and the questions worth handing to AI. Download it, bring it to your next marketing meeting, and work through one audience together.
