Event attendee database: how to build and activate it
Your event attendee database is worth more than your lineup. The 6 data capture sources, how to unify profiles and 3 segments to sell more at every edition.
MYA Club, L'Umbracle Terraza and Committee: how Grupo Salamandra segments its audience and turns first-time attendees into repeat guests with Nevent.
A nightlife group like Salamandra doesn’t sell a ticket: it sells a different night every weekend, spread across venues with very different personalities. In Valencia, that group is MYA Club, the open-air L’Umbracle Terraza, and Committee. Each venue draws a crowd that only partly overlaps, and each night sells out in days, not months.
The website and ticket sales for one of its venues, MYA Valencia, are already covered in another case study. This piece is about what happens after that purchase: how Grupo Salamandra builds the relationship with someone who has already been to one of its nights.
The default setup for a group with several brands is for each venue to keep its own contact list, its own calendar, and its own way of communicating. That makes sense: the crowd at MYA Club isn’t the same as the crowd at an open-air terrace, and mixing everyone into a single send dilutes the message.
But a group also needs to move as a group: announcing a warmup before a big event, sharing photos of a night across sister venues, or reactivating people who haven’t set foot in any of the three in a while. Salamandra needed a structure that respected each venue’s identity without losing the ability to speak as a group when it mattered.
With Nevent, Grupo Salamandra works on a multi-tenant structure: one group-level tenant and one child tenant per venue, each with its own database and its own campaigns. Cross-venue sends — pre-event warmups, recaps and joint activations — go out from the group level, without duplicating lists by hand.
On top of that structure, they run 137 active segments across the three venues. Some real examples:
The journey they repeat most often is easy to describe and hard to improvise without audience segmentation: a countdown warmup before the event, the event send itself, and a photo campaign right after with the gallery from that night. Each step relies on the right segment, not the whole database at once: a message for the guest list isn’t the same as one for someone buying a ticket two hours before doors open.
Over the past twelve months, both venue-level communication and the group’s cross-venue sends sit clearly above what the events industry considers a good result.
| Metric | L’Umbracle Terraza | Group cross-venue sends | Events industry benchmark (good) |
|---|---|---|---|
| Open rate | 30.8% | 26.5% | 25-35% |
| CTR | 8.3% | 7.1% | 3-5% |
| CTOR | 26.9% | 26.6% | — |
Real CTR is 2x the industry rate
Nevent data, Sep 2025 – Sep 2026
L’Umbracle’s CTR runs two to three times the CTR the industry considers good. And CTOR — the share of openers who also click — sits close to 27% at both levels: one in every four people who open the email ends up interacting with it. Committee, for its part, posts a 36.5% open rate, the venue with the most direct relationship with its audience within the group.
Nevent data, Sep 2025 – Sep 2026
Among the cross-venue sends, one campaign stands out: a “Warmup D2” with a countdown to an event, sent to a hot segment, which reached an 80.8% open rate and a 43.4% CTR. Those are the numbers of the right message reaching the right people at the right moment, not simply a better-written send.
The pattern that converts best, wave after wave, is “photos” campaigns after the event and “warmups” before it. In the group’s conversion attribution analysis, using a time-decay model that weights the last touchpoint before purchase more heavily, a single photos campaign accounted for 93% of that weight. And recurrence segments with recent-contact exclusion consistently generate the most assisted conversions, wave after wave.
All of this rests on a healthy foundation: a complaint rate below 0.02% and deliverability above 98% across all three tenants — a sign that the group’s domain reputation is well looked after, something you only notice once it breaks down.
The number that best sums up the underlying work is recurrence: 21.6% of people who buy a ticket at MYA return for another event within twelve months — one in five. At L’Umbracle Terraza, recurrence sits at 14.5%.
Post-event photos: the campaign with the most attribution weight
Nevent data, Sep 2025 – Sep 2026
These are figures you can only measure if you know who has bought before, and can only move if you talk to someone who already knows you differently than you talk to a stranger. It’s the same idea we covered in paying twice for the same person: every time a group treats a repeat attendee the same as someone who has never shown up, it’s paying to capture them all over again instead of building on the relationship it already has.
Grupo Salamandra’s next step with Nevent runs in two directions. The first is adding channels to a journey that already works: SMS with personalized links for the most time-sensitive alerts, like a night nearing capacity. The second is exploring a conversational agent to handle each venue’s most repeated questions — hours, access, dress code — without relying on answering them one by one on social media.
Neither is live yet, but both start from the same principle that already works in email: talk to the right person, about the right thing, on the channel where they’ll actually read it.
If you run several brands or venues under one group and you’re still communicating with each one separately, with no shared view across them, that’s the first question worth asking before the next season.
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