Minervastrasse 23
CH-8032 Zurich

T: +41 79 317 11 11
M: info@spark.earth

SPARK is a project of Perth GmbH.

Perth GmbH
Minervastrasse 23
CH-8032 Zurich

T: +41 79 317 11 11
M: info@spark.earth

Commercial Register: Commercial Registry Office the Canton of Zurich
Registry No. (UID): CHE-176.886.845
Managers: Ariane Fischer & Serena Olgiati

Responsible for website content: Serena Olgiati & Ariane Fischer

© Copyright 2019 – All content, especially texts, photographs and graphics are protected by copyright. All rights, including duplication, publication, editing and translation, remain reserved to SPARK.

Using the portal

Changes to the content of the portal are prohibited. Reproduction or the use of copyrighted content of the portal (including source code) for public or commercial purposes is not permitted without the written consent of the operator of the portal.

Legal liability of the information

The operators of the portal check the content that appears on the portal with great care. Nevertheless, they can not guarantee the completeness, reliability or accuracy of the published information. If required and without notice, the operators can make changes to the portal.

Liability for content

The operator of the portal accepts no liability for errors in the internet, damage caused by third parties, imported data of all kinds (viruses, worms, Trojan horses) as well as for links to and from other websites. In no event shall the operator of the portal be liable to you or any third party for any direct, indirect, special or other consequential damages resulting from the use of this or any linked website.


This portal contains links to external websites of third parties, on whose contents SPARK has no influence. Therefore we can not assume any liability for these external contents. The contents or offers of the websites accessible or linked via the portal are not checked. The content of the linked pages is always the responsibility of the respective provider or operator of the pages.


The content created by the site operators on these pages is subject to Swiss copyright law. The duplication, processing, distribution and any kind of exploitation outside the limits of copyright law require the written consent of the respective author or creator. Downloads and copies of this site are for private, non-commercial use only. Concerning content on this webside which was not created by the operators, copyright rights of third parties are considered. In particular contents of third parties are marked as such. If you should still come across a copyright infringement, we ask you to let us know. Upon notification of violations, SPARK will immediately remove such content.