Responsibility for the content

Wikimedia CH
8008 Zurich


We do not admit responsibility for the content of external links, only the operators of the external sites are responsible for their content.

Trademark rights

Wikimedia, Wikipedia and the other names of the Wikimedia projects as well as their logos are registered trademarks of the Wikimedia Foundation Inc. The use of these trademarks in Switzerland requires written consent of Wikimedia CH or the Wikimedia Foundation.


All images CC-by-SA. Frontpage slider authors:

Cyrille Bertin – Ter Burg / Ter BurgHaka manuEuropeana Fashion

What information we collect

We use personal information collected from donors for the purposes of processing payments and communicating with donors about Wikimedia as well as conducting the fundraising and other operations of Wikimedia. This information may include name, amount donated, address, telephone number, donor comments, e-mail address, and any other personal information provided to us (“Donor Data”). For donations by payment slips, Donor Data also includes the data visible on the payment slips.
As part of providing an online experience expected by our donors, we may store various data that are collected as part of standard web operations (including things like user agent strings, ip addresses, referrer strings, and cookies). We may use this data for purposes described in this policy, including analytical needs and improved functionality of our website. We make limited use of cookies, including third party cookies (such as cookies from payment processors), to track sessions, help store data, and fulfill the purposes set out in this policy. You can prevent or delete our cookies by adapting your browser settings, although this will likely affect the functionality of the website.
Payment Processors and Other Service Providers. Payment processors allow donors to give electronically using a payment services account, a credit card, or other payment method. These processors collect certain information from donors, and you should consult their privacy policies to determine their practices.
To provide donors the best possible experience, we work with service providers and may share Donor Data and other information with, or have it transmitted through, them. Such service providers include, for example, collocation facilities and bandwidth providers as well as organizations that help non-profit organizations with fundraising.

How we use that information

Donor Data. Donor Data may be used for these kinds of purposes:

  • Distributing receipts and thanking donors for donations
  • Informing donors about upcoming fundraising and other activities of Wikimedia
  • Internal analysis, such as research and analytics
  • Record keeping
  • Reporting to applicable government agencies as required by law
  • Surveys, metrics, and other analytical purposes
  • Other purposes related to the fundraising operations

Let it be clear that we do not publish, sell, trade, or rent Donor Data: that’s not how we want to treat people who supported us. Anonymized donor information may however be used for promotional and fundraising activities. Comments that are provided by donors may be publicly published if they are really nice and may be used in promotional materials, but we’ll either ask you before or anonymize the comment. We may use available information to supplement the Donor Data to improve the information we use to drive our fundraising efforts. We may allow donors the option to have their name publicly associated with their donation unless otherwise requested as part of the online donation process.
We use data gathered for payment processors and other service providers only for the purposes described in this policy.

Financial information

It is our internal policy to limit access to financial information to professional staff and volunteers who need to process that information for the purposes described above. Personal financial information is not sold to or traded with other parties.
We use partners to provide online payment processing services. Usually, the privacy policies of these organizations will be presented to you on their respective websites and typically also as part of your donation process. If you pay by credit card, we do not store your credit card information, bank account numbers, or other financial account data sent directly to those processing services.

Other disclosure

We may disclose information when required by law; when needed to protect our rights, privacy, safety, property, donors, or users; and when necessary to enforce our terms of service.


We may change the Donor Privacy Policy from time to time. Any and all changes will be reflected on this page. Substantive changes may also be announced through the standard mechanisms by which we communicate with our users and community. You should periodically check this page for any changes to the current policy.

Data Destination

Your personal data is mainly processed in Switzerland and Germany, and nowhere else.

Data Retention

We seek to retain donor-related information only as needed to fulfill the purposes described in this policy unless a longer retention period is required by law or regulations.


You have certain rights with respect to the information we collect about you. Upon request, we will tell you what information we hold about you and correct any incorrect information. We will also make reasonable efforts to delete your information if you ask us to do so, unless we are otherwise required to keep it.

This particular policy applies to Wikimedia CH. If you visited the Wikimedia donation page of a project hosted by the Wikimedia Foundation (such as Wikipedia), you may have been redirected automatically to our website. Local Chapters such as Wikimedia CH and the Wikimedia Foundation are independent and may post different policies and practices depending on local law requirements and other considerations. The general principles, as set out in this policy, should however be the same. This policy does not address data from sources other than donations, such as edits or content contributions to projects or features.
Last Updated: August, 2012