The operating system for every event.

Attergo brings everything an event needs into one connected platform: the plan, the people, the place, the money and the day itself, from the first idea to the last thank-you.

Events deserve better than six tools and a spreadsheet.

Planning a gathering usually means an invitation site in one place, replies in a spreadsheet, seating on paper, payments somewhere else and a printed list at the door. Every change has to be copied by hand, and something always gets missed.

Attergo replaces that patchwork with one system. The same event graph powers invitations, household replies, seating, the venue plan, tickets, supplier work, check-in and the archive afterwards. Change one thing and everything that depends on it follows.

It is built for the whole range of gatherings: a birthday at home, a three-day wedding, a product launch, a 2,000-person conference and a trade fair with 120 booths.

Six principles behind every screen.

The host comes first

Most events are organized by people doing it for the first time, for someone they love or a cause they care about. Attergo is built so a first-time host can start in minutes, and so a production team never runs out of depth.

One event, one source of truth

A reply should change the headcount, the seating plan, the catering sheet and the door list without anyone copying it across. Every part of Attergo reads the same event, the same guests and the same timeline.

Software explains itself

When SeatSense places a guest, it says why. When a change affects published invitations, Attergo shows the impact before you confirm. Nothing important happens silently.

Guests are people, not data

Guests reply without accounts, see only their own information, and decide whether to share optional preferences. Sensitive details reach only the people who need them.

Pay for the event you are having

Hosting once should not mean a subscription. Every event starts free, upgrades are priced per event, and professionals choose plans built for portfolios.

Built for every culture

A Lagos wedding, a Delhi sangeet and a London summit each have their own language, currency, etiquette and rhythm. Attergo adapts to the event you set up, and never guesses from a guest’s name or location.

Careful engineering where it matters most.

  • Deterministic seating

    SeatSense uses a constraint solver, not a guess. The same inputs give the same plan, hard rules are never broken quietly, and conflicts are reported with options to resolve them.

  • One measured venue model

    EventTwin keeps one set of coordinates and seat identifiers. The 2D plan, the 3D view, the seating plan and the door lookup all read from it.

  • Separate data for every workspace

    Each workspace is isolated in the database itself, and collaborators get access scoped to a single event. Read more on the security page.

  • Money handled exactly

    Amounts are stored as whole minor units, never floating point, and every financial change keeps its history.

Questions, partnerships or press? We read every message.

See it with your own event.

Start free with a template and invite your first guests today.