Privacy policy

The protection of your personal data during your visit to our homepage is a very serious matter for us. All information about your person, such as your name, address, telephone number, e-mail address, account number, etc., as well as all information that can be traced back to you, is called personal data. This includes the IP address, which is automatically transmitted when you visit a website. This is technically absolutely necessary.


We would like you to know if and when we collect which data and how we use it. We have taken technical and organisational measures to ensure that the regulations on data protection are observed both by us and by possible external service providers. In particular, we also take into account the Basic Data Protection Regulation (DSGVO) of the European Union (EU), which is to be implemented from 25.05.2018.

Personal data on this website is only collected automatically to the extent that is technically necessary. Below you will find information about which data is collected during your visit to our homepage and how it is used. If you wish to assert your rights (see below), please contact us as the person responsible for data processing on this website - the contact details can be found in the imprint.

If you have fundamental questions or concerns regarding data protection, please contact our data protection officer in writing at


Personal data may only be "processed" if there is a valid legal basis for this. The processing is bound to a concrete purpose. We process personal data that we may collect from you via this website on the basis of the following legal principles:


Balancing of interests in accordance with Art. 6 Para. 1 letter f DSGVO

The possible use of tools which aim to make our website more customer-friendly, efficient and secure can be done within the framework of a balancing of interests, as this does not involve the profiling of user behaviour and the IP address of the visitor is only stored temporarily in a non-anonymous form.

Information which you provide us with for the purpose of a possible or existing business relationship (B2B relationship) is also processed by us within the framework of a weighing of interests.

Contractual relationship in accordance with Art. 6 para. 1 lit. b DSGVO

If you, as a private person, provide us with your personal information (e.g. in the context of an application), we process this data in the context of a contract initiation or for the processing of the contractual relationship with you.

Legal requirement according to Art. 6 Para. 1 lit. c DSGVO

Insofar as we are subject to legal requirements, for the observance of which we must use your personal data, this is done within the framework of this legal basis.

Consent in accordance with Art. 6 para. 1 lit. a DSGVO

In rare cases, it may be possible that we may wish to use personal information you have provided for a purpose other than that for which it was intended. If this should occur and there is no other legal basis, we will need your voluntary consent - which can be revoked at any time in the future - which we will then ask you for separately.

When you visit our website, your IP address and other information is automatically transmitted. We do not store this data ourselves, but our service provider requires this information for the technical provision of the website. He automatically logs every access to our homepage and every possible retrieval of a file stored on the homepage. Logged are:


  • IP address of the user
  • Information about the browser type
  • Information about the version of the browser type used
  • Operating system of the user
  • Internet service provider of the user
  • Date and time of access
  • Website from which the user has reached our site
  • Web pages that are called up by the user's system via our website

For reasons of security and availability of the website and in accordance with § 100 TKG (malfunction and misuse of telecommunications systems), the IP address is also logged for a short period (maximum 7 days). Access to this log is only granted in the event of security breaches for criminal prosecution.  Personal user profiles are not generated!

The basis for this processing is Art. 6 para. 1 letter f DSGVO ("weighing of interests").

Insofar as we wish to use the transmitted IP address anonymously for further purposes, this will be explained in more detail below.

Please note that telecommunications service providers are legally obliged to store connection data within a reasonable framework (Art. 6 para. 1 lit. c DSGVO).

The basic data protection regulation obliges us to provide appropriate information whenever personal data is collected directly from the person concerned. Within the scope of our website we collect personal data from you and would therefore like to inform you accordingly. This collection is present, for example, when we


  • Collect your IP address for the technical provision of the website
  • use a tracking tool that uses the IP address (see Google Analytics)
  • Receive your input in a contact module for communication with us.

Basic procedure:

As far as you have provided us with personal data, we will only use it to answer your questions and for technical administration. As an exception, the anonymous IP address can be used for statistical evaluation. If the IP address is used for other purposes, this will be listed below.

Your personal data will only be passed on or otherwise transferred to third parties if this is necessary for the purpose of contract processing - in particular the transfer of contact data to downstream service companies - or for invoicing purposes, or if we are legally obliged to do so, or if we have your prior consent in the context of order processing by sub-contractors or you have given your consent. You have the right to revoke your consent with effect for the future at any time.

An exception may be the transmission of automatically collected personal data when using tools on the website, if this is done on the basis of a weighing of interests in accordance with Art. 6 Para. 1 letter f DSGVO. Possible cases are listed in this data protection declaration.

Stored personal data will be deleted if you revoke your consent to storage, if knowledge of the data is no longer required to fulfil the purpose for which it was stored, i.e. if the process has been completed and there are no statutory periods of deletion to prevent this, or if storage of the data is not permitted for other legal reasons. In addition, your objection to processing may lead to the deletion of the stored data.

If the data cannot be deleted for technical reasons, we will make it anonymous so that a personal reference cannot be established in the future.

All surveys or processing of this website is the responsibility of our company.

You will find additional detailed information in the following points.


We offer you the possibility to subscribe to a free newsletter. The data you enter in the input mask will be transmitted to us. The following data is required for the registration:

  • E-mail address
  • Salutation
  • First name
  • Last name
  • Company

As part of the newsletter registration you will receive a confirmation email to complete the registration using the double opt-in procedure. The newsletter can be cancelled at any time by clicking on the unsubscribe link in each newsletter.

The deposited data will be stored by us until you unsubscribe from the newsletter. We do not pass on this data to third parties. After cancellation of the newsletter the data will be deleted.

E-Mail Contact

If you contact us by e-mail, we will only use your details to process your request. These data will not be passed on to third parties.

At the time of sending, our system also saves the following data:

  • IP address of the user
  • Date and time of contact

The data sent in the e-mail will be processed on the basis of your consent (Art. 6 para. 1 letter a EU-DSGVO), which you give by sending the e-mail. You can revoke this consent at any time. All you need to do is send us an informal notification by e-mail. The legality of the data processing operations carried out up to the time of revocation shall remain unaffected by the revocation.

The data sent by you will remain with us until you request us to delete it, revoke your consent for storage or the purpose for which the data was stored ceases to apply (e.g. after your request has been processed). Mandatory legal provisions - in particular retention periods - remain unaffected.

Contact forms

When you contact us via our website, we collect various personal data from you using our forms. Some fields are mandatory fields, which we need for a reasonable handling of your request - other information is voluntary. Mandatory fields are marked with an asterisk.

With this data provided by you, an unencrypted e-mail is generated and transmitted to us directly - without intermediate storage. Please note that the e-mail is not encrypted, so please be careful not to enter any confidential data or information in this way.

We use this information exclusively for processing your request. As far as it should be necessary for processing your request, we will involve other departments for processing your request, taking into account the applicable legal regulations (e.g. within the scope of order processing). If your details have been transmitted for the purpose of or within the framework of a business relationship with us, we store your contact details for this purpose in our internal systems. Your actual request may also be kept in internal systems (e.g. ticket system, e-mail system) to enable the process of internal processing.

As we assume an unlimited business relationship, we only delete or anonymise this data on request (see your right to deletion later) or if the purpose for which the data is stored no longer applies, provided that there are no legal retention periods or deletion periods to prevent this.

The legal basis for the processing of the information you provide about the purpose of use is in the context of a possible initiation or fulfilment of a business relationship with you or your employer in accordance with Art. 6 para. 1 lit. b DSGVO (business relationship with you) or Art. 6 para. 1 lit. f DSGVO (processing of the business relationship with your employer in the context of a weighing of interests). If we need your consent for a desired processing, we will obtain it explicitly (e.g. by clicking on an appropriate option).

[Translate to Chinese:]Cookies are small text files that can be stored on your computer for various purposes. Cookies can have various functions. For example, some cookies enable the user to use the website more conveniently, others record user behaviour or help to identify users when they visit a website again.


Cookies are primarily used in the area of online marketing when personalised advertising is to be placed. The keyword "targeting" is used to summarise the activities that are intended to enable the display of advertising on websites for specific target groups. A continuation of this advertising strategy is so-called retargeting, in which a provider/advertiser marks the customer when he visits the company's own homepage by means of a tracking cookie and then follows him as he roams the Internet and regularly places his own advertising as banners on third-party sites to remind him specifically of his own products.

Cookies, which are necessary for the electronic communication process or for the provision of certain functions requested by you, are stored on the basis of Art. 6 para. 1 lit. f DSGVO ("processing to safeguard a legitimate interest"). The website operator has a legitimate interest in the storage of cookies for the technically error-free and optimised provision of his services. Insofar as other cookies (e.g. cookies for analysing your surfing behaviour) are stored, these are treated separately in this data protection declaration.

In the following we have listed the cookies that can be installed on your computer through your use. As far as they are not technically necessary, they belong to a tool (e.g. Google Analytics - see later), which we may only use on the basis of your consent. If you have given your consent, these cookies will be installed.


Storage duration

Technically required cookies


Session duration


You can set your browser so that you are informed about the setting of cookies and allow cookies only in individual cases, exclude the acceptance of cookies for certain cases or generally, and activate the automatic deletion of cookies when closing the browser. If you deactivate cookies, the functionality of this website may be limited.

Our offer contains links to external websites of third parties, on whose contents we have no influence. Therefore we cannot assume any liability for these external contents. The respective provider or operator of the sites is always responsible for the contents of the linked sites. The linked pages were checked for possible legal violations at the time of linking. Illegal contents were generally not recognizable at the time of linking. However, a permanent control of the contents of the linked pages is not reasonable without concrete evidence of a violation of the law. As soon as we become aware of any infringements, we will remove such links immediately. Please note the data protection declarations of the third parties on whose site the link is made.


Special links to LinkedIn

Through our website you can access our presentations on LinkedIn. We use appropriate icons for this purpose. As soon as you click on the icon, you will be redirected to this page. Please note that you are leaving our company website and are subject to the terms of use there.

We do not use any social plug-ins which would already start a transmission when you visit our website.

Art. 12 - 23 DSGVO regulate the rights of the data subject, i.e. your rights regarding the handling of your personal data. These are essentially towards us:


  • Right to information at the latest at the time of collection in accordance with Art. 13 DSGVO, which we comply with through this data protection declaration.
  • Right to information according to Art. 15 DSGVO
  • Recht auf Löschung nach Art. 17 DSGVO
  • Right of cancellation under Art. 17 DSGVO
  • Right of objection under Art. 21 DSGVO
  • Where applicable: Right to data transferability according to Art. 20 DSGVO

In accordance with the DSGVO and other legal provisions, we will support you in asserting your rights.

For inquiries regarding the exercise of your rights, please contact the office indicated in the imprint. Please understand that, also in the interest of the rights of other persons, we can only provide personal information if you can provide appropriate identification.

You also have a right of appeal to a supervisory authority. As a rule, the competent authority is the data protection commissioner of the federal state in which our company has its headquarters - in our case this is the data protection commissioner of Baden-Württemberg. A list of the data protection commissioners and their contact details can be found in the following link:



Plugins are usually icons (small pictures), behind which there is a link to another provider. However, the special feature of such plugins is that personal data of the visitor is often already transmitted to these providers when a website visitor calls up a page on which such a plugin is placed. We use the following plugins:


Google Maps

Via an API we use the map service Google Maps from Google Inc. 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA.

To use the functions of Google Maps it is necessary to store your IP address. This information is usually transferred to a Google server in the USA and stored there. We have no influence on this data transfer.

The use of Google Maps offers the possibility to visualize our locations on an interactive map. The processing is carried out on the basis of Art. 6 para. 1 lit. a DSGVO ("consent").

More information on the handling of user data can be found in Google's privacy policy: .

You can find more details in the data protection center: Transparency and Choices and Privacy Policy.


Google reCAPTCHA

On our website we use "Google reCAPTCHA" (in the following "reCAPTCHA"). The provider is Google Inc, 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA ("Google").

The purpose of reCAPTCHA is to check whether the data input on our website (e.g. in a contact form) is made by a human being or by an automated program. For this purpose, reCAPTCHA analyses the behaviour of the website visitor on the basis of various characteristics. This analysis starts automatically as soon as the website visitor enters the website. For analysis purposes, reCAPTCHA evaluates various information (e.g. IP address, time spent on the website or mouse movements made by the user). The data collected during the analysis is forwarded to Google.

The reCAPTCHA analyses run completely in the background. Website visitors are not informed that an analysis is taking place.

The processing is based on Art. 6 para. 1 lit. a DSGVO ("consent").

Further information on Google reCAPTCHA and Google's privacy policy can be found at the following links: and

We do not use social plugins, instead we have included links (see above).


On the Chinese website, we do not use Google Maps or Recaptcha. Instead of Google Maps, the service of Baidu Maps is used. 


We use these tools to optimize our web offer. Legal basis is - unless otherwise stated - always the consent according to Art. 6 para. 1 lit. a DSGVO. In the event that an objection link is activated, by revocation or by appropriate browser configuration, you can assert your objection for the future.

We do not use the data to identify the website visitor, but basically for statistical purposes in order to optimise our website. Among other things, it is important for us to know how anonymous visitors move around our website. The IP address is always shortened in such a way that the person concerned can no longer be identified.

The data is only passed on if a service provider is involved to obtain or evaluate the information within the scope of order processing in accordance with Art. 28 DSGVO.

Google Analytics

This website uses Google Analytics 4, a service provided by Google Ireland Limited, Gordon House, 4 Barrow St, Dublin, D04 E5W5, Ireland ("Google"), which allows the analysis of website usage.

When using Google Analytics 4, so-called "cookies" are automatically employed. Cookies are text files stored on your device that enable the analysis of your website usage. The information collected through cookies about your website usage (including the IP address, truncated to the last few digits, as explained below) is generally transmitted to and stored and processed on a Google server. This may also involve the transfer of information to servers of the company Google LLC located in the United States, leading to further processing of the information.

When using Google Analytics 4, the IP address transmitted by your device during your website usage is automatically and consistently collected and processed in an anonymized manner, ensuring that direct identification of the collected information is excluded. This automatic anonymization is achieved by truncating the IP address transmitted by your device within the member states of the European Union (EU) or other Contracting States to the Agreement on the European Economic Area (EEA) to the last few digits.

On our behalf, Google uses this and other information to evaluate your website usage, compile reports on your website activities or user behavior, and provide us with additional services related to your website and internet usage. The truncated IP address transmitted by your device through Google Analytics 4 is not merged with other data from Google. Data collected during the use of Google Analytics 4 is retained for 2 months and then deleted.

Google Analytics 4 also allows the creation of statistics through a special feature called "demographic characteristics," providing insights into age, interest-based advertising, and utilizing third-party information. This enables the determination and differentiation of user groups on the website for the purpose of targeted marketing. However, data collected through "demographic characteristics" cannot be attributed to any specific individual and, therefore, not to you personally. Data collected through the "demographic characteristics" feature is retained for two months and then deleted.

All the processing described above, especially the use of Google Analytics cookies for storing and retrieving information on the device you use to access the website, only occurs if you have given us your explicit consent in accordance with Art. 6 para. 1 lit. a GDPR. Without your consent, Google Analytics 4 will not be used during your website usage. You can revoke your consent at any time with future effect. To exercise your revocation, please disable this service through the "Cookie Consent Tool" provided on the website.

In connection with this website, the "UserIDs" feature is also utilized as an extension of Google Analytics 4. By assigning individual UserIDs, we can have cross-device reports generated by Google (so-called "Cross Device Tracking"). This means that, with your consent in the use of Google Analytics 4 according to Art. 6 para. 1 lit. a GDPR, your usage behavior can be analyzed across devices if you have set up a personal account through your registration on this website.

In connection with this website, the Google Signals service is also used as an extension of Google Analytics 4. With Google Signals, we can have cross-device reports generated by Google (so-called "Cross Device Tracking"). If you have activated "personalized ads" in your Google account settings and linked your internet-enabled devices to your Google account, Google can analyze usage behavior and create database models based on your consent to the use of Google Analytics 4 according to Art. 6 para. 1 lit. a GDPR, across devices. This includes the logins and device types of all website users who were logged into a Google account and performed a conversion. The data shows, among other things, on which device you first clicked on an ad and on which device the corresponding conversion occurred. We do not receive any personally identifiable data from Google; we only receive statistics created based on Google Signals.

You have the option to disable the "personalized ads" function in your Google account settings and thus turn off cross-device analysis in connection with Google Signals. Follow the instructions on this page:

For more information on Google Signals, visit the following link:

We have entered into a so-called data processing agreement with Google for our use of Google Analytics 4, whereby Google is obligated to protect the data of our website users and not disclose it to third parties.

For data transmission to the USA, the provider has joined the EU-US Privacy Shield, ensuring compliance with the European level of data protection based on an adequacy decision by the European Commission.

Google's privacy policy can be viewed here:

Details on the processes triggered by Google Analytics 4 and how Google handles data from websites can be found here:

On the Chinese website, we do not use the analysis functions of Google Analytics. No other analysis system is in use.


By taking all technical and organisational measures, we make every effort to store your personal data in such a way that they are not accessible to third parties. In the case of communication via an unencrypted e-mail, we cannot guarantee complete data security, so that we recommend that you use an encrypted path or post for confidential information.


SSL- bzw. TLS-Encoding

This site uses SSL or TLS encoding for security reasons and to protect the transmission of confidential content, such as orders or inquiries that you send to us as site operator. You can recognise an encrypted connection by the fact that the address line of the browser changes from http:// to https:// and by the lock symbol in the browser line.

If SSL or TLS encryption is activated, the data you send to us cannot be read by third parties.