Hi, Internet

We are here to help

If you are having problems with the website, this is definitely the place to be. You can browse our documentation index in the menu bar at the top of the page. If you find something missing, you can contact us at info@koliseo.com.

About us

Koliseo is a platform to sell tickets for events with a nice yet easy-to-use interface. If you need to find us, we are here:

Extrema Sistemas S.L. <info@koliseo.com>
Casas de Miravete 24A Madrid, Spain 28031
Tel: +34 91 123 9108
» Ver en Google Maps


We use cookies to build a better user experience. You may block them in your browser, but then you will be disabling some features on Koliseo:

  • Authentication We use cookies to keep track of who you are after signing in.
  • Customization We use cookies to override the preferred language, in case it's not the same as your browser default.
  • Analytics and research We use cookies (stored in analytics.google.com) to keep track of the kind of features that people love. They help us to build a better user experience.

You can delete these cookies in your browser options.


The default photos included in Koliseo have been extracted from the Wikimedia Commons Project. Without them, our work would not be possible.

Each photo includes a comment with the author and original link. This does not apply to photos uploaded by users while creating their own events, which are provided at their own risk. Koliseo may take down any content that incurs in a copyright violation.