Privacy Policy



The operators of this website take the protection of your personal data very seriously. We handle your personal data in a confidential manner and in accordance with applicable data protection laws and regulations as well as this Privacy Policy.

The following information provides a brief overview of what happens to your personal data when you visit our website. Personal data includes any data by which you could be personally identified. You may find detailed information on the subject of data protection in our Privacy Policy which is set out below.

This website uses SSL or TLS encryption for security reasons and to protect the transmission of confidential information, such as orders or requests that you send to us as the site operator. You can recognise an encrypted connection in your browser’s address bar when it changes from “http://” to “https://” and the lock icon is displayed in your browser’s address bar.
If SSL or TLS encryption is activated, the data you transmit to us cannot be read by third parties.



Who is responsible for collecting data on this website?
The controller responsible for data processing on this website in accordance with Art. 4(7) GDPR is: 
BK Wirtschaftstreuhand GmbH    
Katharina-Heinroth-Ufer 1
D-10787 Berlin
Phone: +49 (0)30-311695900

What data do we collect?
A variety of personal data is collected when you use this website. Personal data is any form of data which can be used to identify an individual. This Privacy Policy explains what information we collect and what we use it for. It also explains how and for what purpose this is done.

Without limitation, we collect the following data when you visit our website:

  • IP address of the visitor’s device;
  • Date and time of access by the visitor;
  • Name and URL of the page accessed by the visitor;
  • Website from which access is made (referrer URL);
  • Browser and, if applicable, operating system of the visitor’s computer and the name of the access provider.


This data will be used by us for the following purposes:

  • To ensure a smooth connection to the website;
  • To ensure convenient use of our website;
  • To evaluate system security and stability; and
  • For other administrative purposes.

If you submit an enquiry via the contact form on our website, we collect the personal data transmitted with this enquiry, i.e. in particular the name and the contact details provided. 

How do we collect your data?
First, your data is collected when you communicate it to us. This could, for example, be data you enter on a contact form.
Other data is automatically collected by our IT systems when you visit our website. This data is primarily technical data (for example, the browser and operating system you are using or when you visited our website). This data is collected automatically as soon as you access our website.

What do we use your data for?
Part of the data is collected to ensure the proper functioning of the website and to facilitate its use. In addition, the data collected serves to ensure system security and stability and is also used in connection with other administrative purposes.
Other data can be used to analyse your user behaviour.
We use the data transmitted to us via the contact form to process the respective contact request.

Legal basis
The legal basis for data processing is Art. 6(1)(f) GDPR. The purposes indicated above constitute our legitimate interest in collecting such data. Under no circumstances will we use the data collected for the purpose of identifying you as an individual.

The legal basis when using the contact form is provided by Art. 6(1)(a) GDPR, since by using the contact form, you consent to having the respective data processed.

We delete the data collected from you after your visit to our website, unless legal retention obligations require otherwise or we have a legitimate interest in retaining the respective data.

As a rule, data you provide via the contact form will be stored until you have withdrawn your consent. However, even in the event you withdraw consent, we will not delete the data if legal retention obligations require otherwise or we have a legitimate interest in retaining the respective data.



You have the right to request information about your stored data, where it came from, who received it, and the purpose for which it was collected, at any time and at no expense. You also have the right to request the rectification of inaccurate or incomplete data, the blocking or erasure of such data or the limitation of the processing of such data. You have the right to object to the processing of your personal data insofar as such processing is based on legitimate interests. You have the right to receive your personal data in a structured, commonly used and machine-readable format or to request its transfer to another controller. You can contact us at any time at the address given in the Imprint if you have any further questions on the subject of data protection. You also have the right to lodge a complaint with the competent supervisory authority.
Furthermore, you have the right to request that the processing of your personal data be restricted. For further information, see our Privacy Policy under “Right to restriction of processing”.

Withdrawing your consent to data processing
Many data processing operations are only possible with your express consent. You may withdraw your consent at any time. An informal e-mail making this request is sufficient. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal.

Right to object to data collection in special cases (Art. 21 GDPR)
If data processing is carried out on the basis of Art. 6(1)(e) or (f) GDPR, you have the right at any time to object to the processing of your personal data for reasons arising from your particular situation; this also applies to profiling based on these provisions. The respective legal basis on which processing is based can be found in this Privacy Policy. If you submit an objection, we will no longer process your personal data unless we can demonstrate compelling legitimate grounds for the processing which override your interests, rights and freedoms or for the establishment, exercise or defence of legal claims (Objection pursuant to Art. 21(1) GDPR).
Where your personal data is processed for direct marketing purposes, you have the right to object at any time to the processing of your personal data for the purposes of such advertising; this includes profiling in so far as it is related to such direct marketing. If you object, your personal data will no longer be used for direct marketing purposes (Objection pursuant to Art. 21(2) GDPR).

Right to restriction of processing
You have the right to restrict the processing of your personal data. To make such a request, you can contact us at any time at the address given in the Imprint. The right to restrict processing applies in the following cases:

  • If you dispute the accuracy of your personal data stored with us, we generally need time to verify the accuracy of your personal data; you have the right to demand the restriction of processing of your personal data while we verify its accuracy.
  • If your personal data was processed/is being processed unlawfully, you can demand the restriction of data processing instead of erasure.
  • If we no longer need your personal data, but you need it for the establishment, exercise or defence of legal claims, you have the right to demand the restriction of the processing of your personal data instead of erasure.
  • If you have asserted your right to object in accordance with Art. 21(1) GDPR, your interests must be weighed against ours. As long as it is not yet clear whose interests predominate, you have the right to demand that the processing of your personal data be restricted.

Where processing has been restricted, such personal data may, with the exception of storage, only be processed with your consent or for the establishment, exercise or defence of legal claims or for the protection of the rights of another natural or legal person or for reasons of important public interest of the Union or of a Member State.




Web analytics
Your surfing behaviour can be statistically analysed when you visit our website. This is done primarily using cookies and so-called analytics programs. The analysis of your surfing behaviour is usually anonymous, i.e. we will not be able to identify you from this data. You may object to this analysis or prevent it by not using certain tools. You will find detailed information on this topic in the Privacy Policy set out below.
You can object to this analysis. In our Privacy Policy we will inform you about how to exercise your rights in this regard.
This website uses so-called cookies in some instances. Cookies do not cause any damage to your computer and do not contain any viruses. The purpose of cookies is to make our website more user-friendly, functional and secure. Cookies are small text files that are stored on your computer and saved by your browser.
Most of the cookies we use are so-called "session cookies." They are automatically deleted at the end of your visit. Other cookies remain stored on your device until you delete them. These cookies make it possible to recognise your browser the next time you visit our website.
You can set your browser so that you are informed about the placement of cookies and only allow cookies in individual cases, exclude the acceptance of cookies for certain cases or generally exclude, and activate the automatic deletion of, cookies when closing your browser. Disabling cookies may limit your ability to use some of the functions of this website.
Cookies which are necessary to allow electronic communications or to provide certain functions you wish to use (such as the shopping cart) are processed on the basis of Art. 6(1)(f) GDPR. The website operator has a legitimate interest in saving cookies for purposes of providing their services free of technical errors and in order to optimise their services. If other cookies (such as those used to analyse your surfing behaviour) are also saved, they will be treated separately in this Privacy Policy.
Contact form

If you send an enquiry using the contact form, your details from the contact form, including the contact details you provided there, will be stored for the purpose of processing the enquiry and in the event of any follow-up questions. We will not share this data without your consent.
The data entered in the contact form is therefore processed exclusively on the basis of your consent (Art. 6(1)(a) GDPR). You can withdraw this consent at any time. An informal e-mail making this request is sufficient. The withdrawal of consent shall not affect the lawfulness of processing based on consent before its withdrawal.
We will retain the data you provide on the contact form until such time as you request its erasure, withdraw your consent for its storage, or the purpose for its storage is no longer applicable (e.g. after completely processing your enquiry). Any mandatory statutory provisions, especially those regarding mandatory data retention periods, remain unaffected.

Google Web Fonts
This website uses web fonts provided by Google for the uniform display of fonts. Google Fonts are installed locally. No connection is made to the Google servers. Accordingly, your data is not shared with Google.

Google Analytics

If you have given your consent, Google Analytics, a web analysis service of Google LLC ("Google") is used on this website. The use includes the "Universal Analytics" operating mode. This makes it possible to assign data, sessions and interactions across multiple devices to a pseudonymous user ID and thus analyze a user's activities across devices. This data protection notice is provided by

Google Analytics uses "cookies", which are text files placed on your computer, to help the website analyze how users interact with the site. The information generated by the cookie about your use of this website is usually transferred to a Google server in the USA and stored there. However, if IP anonymisation is activated on this website, Google will reduce your IP address within Member States of the European Union or in other states party to the Agreement on the European Economic Area beforehand. Only in exceptional cases will the full IP address be transmitted to a Google server in the USA and shortened there. We would like to point out that on this website Google Analytics has been extended to include IP anonymisation in order to ensure anonymous collection of IP addresses (so-called IP masking). The IP address transmitted by your browser in the context of Google Analytics is not merged with other Google data. For more information on terms of use and data protection, please visit or

Purposes of the Processing
On behalf of the operator of this website, Google will use this information to evaluate your use of the website, to compile reports on website activity and to provide the website operator with other services related to website and Internet use.

Legal Basis
The legal basis for the use of Google Analytics is your consent in accordance with Art. 6 para. 1 lit. a GDPR.

Recipients or Categories of Recipients
The recipient of the collected data is Google.

Transfer to Third Countries
Personal data will be transferred to the USA under the EU-US Privacy Shield on the basis of the European Commission's adequacy decision. You can download the certificate here.

Duration of Data Storage
The data sent by us and linked to cookies, user-identifiers (e.g. User-IDs) or advertising-identifiers are automatically deleted after 14 months. Data whose retention period has been reached is automatically deleted once a month.

Rights of the Persons affected
You can revoke your consent at any time with effect for the future by blocking the storage of cookies by setting your browser software accordingly; however, we would like to point out that in this case you may not be able to use all functionalities of this website to their full extent.

You can also prevent Google from collecting the data generated by the cookie and relating to your use of the website (including your IP address) and from processing this data by Google by downloading and installing the Browser Add-on. Opt-out cookies will prevent future collection of your data when you visit this website. To prevent Universal Analytics from collecting data across different devices, you must opt-out on all systems used. If you click here, the opt-out cookie will be set: Disable Google Analytics