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Data Protection Declaration Dipl.-Ing. Tietjen GmbH

The protection of your personal data is an important concern for us. With this data protection declaration, we, Dipl.-Ing. Tietjen GmbH, Calle 40, 27333 Bücken, Germany, inform you about how we store and process your personal data, for what purposes and on what legal basis this is done, as well as about your existing rights in this context.


1. Name and contact details of the controller

Responsible for the processing of your personal data is

Dipl.-Ing. Tietjen GmbH
Calle 40
27333 Bücken, Germany

Phone: +49 (0) 4251 93 40-0
Fax: +49 (0) 4251 93 40-40

2. Collection of personal data and processing purposes

2.1.  When you access our website or our online store (hereinafter referred to as "our websites"), we automatically store various information about the access to the respective website, such as your IP address, the name of your access provider, the web browser you use and your operating system, the date and time of access, the access status, the use of website functions, the search terms you may have entered, the frequency with which you access individual web pages, the name of accessed files, the amount of data transferred, the website from which access is made. We process this personal data to enable you to visit our websites smoothly and as comfortably as possible. The data processing is also necessary to protect us from unauthorized access to our IT systems.

2.2.  If you purchase goods via our online store, we store and process personal data for the initiation and processing of the respective purchase contract as well as for the assertion of any claims against you in connection with the respective purchase contract. In this context, we process the personal data that you provided when you set up your user account or as part of the ordering process.

2.3.  If you contact us by e-mail or via our contact form, we process your personal data in order to respond to your inquiry.

2.4.  If you register for our newsletter, we process your personal data in order to inform you regularly about current news and promotions about our products and our company after registration. To verify your e-mail address, you will first receive an e-mail containing a link that you must confirm (so-called double opt-in procedure).

3. Disclosure of data to third parties

3.1.  A transfer of your personal data to third parties is made to our service partners involved in the context of contract processing to the extent necessary for the fulfillment and execution of the respective purchase contract. In order to be able to carry out the delivery of the purchased goods, we pass on your data to the transport company commissioned with the delivery. For the payment processing, we may forward the necessary personal data to the respective payment service provider who is commissioned by us with the processing of the payment method selected by you.

3.2.  In addition, disclosure to third parties may be necessary for the assertion, exercise, or defense of legal claims and to fulfill our legal obligations.

4. Cookies; Consent Management System

4.1.  We use cookies and similar technologies (hereinafter "cookies") on our websites. These are small text files that are automatically stored on your end device by your web browser when you visit a website. You can use the settings of your web browser to determine that no cookies are stored on your end device or that a message always appears before a new cookie is created. The use of cookies is partly technically necessary for the operation of our website and therefore possible without your consent. In addition, we use cookies to optimize the user-friendliness of our websites. Furthermore, we may use cookies to offer special features and content as well as for analysis and marketing purposes. This may also involve cookies from third-party providers. We only use such technically unnecessary cookies with your consent. You can find information about the purposes, providers, technologies used, stored data and the storage period of individual cookies in the settings of our Consent Management System.

4.2.  We use a Consent Management System to control cookies and comparable technologies, which allows you to give consent to certain data processing processes or to revoke a given consent. By confirming the corresponding buttons or by saving individual settings, you consent to the use of the respective cookies.

4.3.  If you deactivate cookies or delete them, you may not be able to use all functions of our websites to the full extent.

5. Analysis tools

5.1.  We use the web analytics service Stetic from the provider Stetic GmbH for our website, which enables us to collect and analyze data about the behavior of visitors of our website. More information and the applicable privacy policy of Stetic can be found at

5.2.  Stetic uses cookies. With the help of Stetic, anonymized visitor data is collected, evaluated and stored for optimization and marketing purposes. Stetic uses cookies, which are stored in text files in the cache of your browser. These cookies are used to recognize the browser and thus enable a more precise determination of statistical data. The information collected through these cookies about your use of our website is transmitted to an external server, possibly abroad, and stored there. Stetic will use this information for the purpose of evaluating your use of our website, compiling reports on website activity for website operators and providing other services relating to website activity and internet usage. Stetic may also transfer information to third parties if required by law or if third parties process this data on behalf of Stetic.

5.3.  The data collected within the framework of Stetic will not be used to personally identify the visitor of our website without the separately granted consent of the person concerned. Stetic has undertaken not to associate your IP address with any other data held by the company. You can prevent the installation of cookies by selecting the respective settings on your web browser. However, we would like to point out that in this case you may not be able to use all functions of our websites to the full extent.

5.4.  If a corresponding consent has been obtained, the setting of cookies and the further processing of personal data by Stetic described here is based on your consent. The legal basis for the data processing in connection with Stetic is therefore Art. 6 (1) lit. a GDPR. You can revoke this consent at any time with effect for the future. The anonymized analysis of your user behavior may also be based on Art. 6 (1) lit. f GDPR. Our legitimate interest in the anonymized analysis of user behavior is to be able to optimize our websites and our advertising.

6. Plug-ins and tools

6.1.  We have integrated components of the company Facebook Inc, 1 Hacker Way, Menlo Park, CA 94025, USA. If a data subject lives outside the USA or Canada, the controller of personal data is Facebook Ireland Ltd, 4 Grand Canal Square, Grand Canal Harbour, Dublin 2, Ireland. Each time you call up one of the individual pages of our website on which a Facebook component (Facebook plug-in) has been integrated, your web browser is automatically prompted by the respective Facebook component to download a representation of the corresponding Facebook component from Facebook. As part of this technical process, Facebook receives knowledge about which specific subpage of our website you are visiting. This information is collected by the Facebook component and assigned by Facebook to the respective Facebook account of the person concerned. If you click on one of the Facebook buttons integrated on our website, for example the "Like" button, or if you post a comment, Facebook assigns this information to your personal Facebook user account and stores this personal data.

6.2.  Our website uses so-called web fonts for the uniform display of fonts, which are provided by Monotype GmbH ( or and Google LLC ( or When you call up a page, your browser loads the required web fonts into its browser cache in order to display texts and fonts correctly. For this purpose, the browser you use connects to the servers of and In this way, the aforementioned company become aware that our website has been accessed via your IP address. The use of web fonts is in the interest of a uniform and appealing presentation of our websites. This represents a legitimate interest within the meaning of Art. 6 (1) lit. f GDPR.

7. Application procedure

We collect and process personal data from applicants for the purpose of handling the application process. This is particularly the case if an applicant submits corresponding application documents by e-mail or via a form located on our website. If the applicant is employed, the transmitted data will be stored for the purpose of processing the employment relationship in compliance with the statutory provisions. If, on the other hand, no employment contract is concluded with the applicant, the application documents will be deleted two months after notification of the rejection decision, provided that no other legitimate interests prevent deletion.

8. Legal bases of data processing

8.1.  If you have given us your consent for the processing of your personal data, this consent is the legal basis for the data processing pursuant to Art. 6 (1) lit. a GDPR.

8.2.  In addition, we process personal data for the purpose of safeguarding our legitimate interests as well as the legitimate interests of third parties pursuant to Art. 6 (1) lit. f GDPR. Our legitimate interest in data processing follows in particular from the processing purposes stated in this data protection declaration.

8.3.  As a rule, the legal basis for the processing of the personal data mentioned in Clause 2.2 is Art. 6 (1) lit. b GDPR. The data processing is necessary for the fulfillment of a contract concluded with you via our online store.

8.4.  Data processing may also be necessary pursuant to Art. 6 (1) lit. c GDPR in order to comply with our legal obligations, in particular commercial or tax retention obligations.

9. Data storage period

We store your personal data only as long as this is necessary to achieve the purpose of processing or to fulfill our contractual or legal obligations.

10. Data subject rights

10.1.  As a person affected by data processing, you have the right to information (Art. 15 GDPR), correction (Art. 16 GDPR), data deletion (Art. 17 GDPR), restriction of processing (Art. 18 GDPR) and data portability (Art. 20 GDPR).

10.2.  If your personal data is processed on the basis of legitimate interests pursuant to Art. 6 (1) lit. f GDPR, you have the right to object to the processing of your personal data pursuant to Art. 21 GDPR, provided that there are grounds for doing so that arise from your particular situation.

10.3.  You have the right to revoke consent at any time. The lawfulness of the processing of your personal data until a revocation is not affected by the revocation. Likewise, further processing of this data on the basis of another legal basis remains unaffected.

10.4.  In accordance with Art. 77 GDPR, you have the right to lodge a complaint with a supervisory authority about our processing of your personal data.

11. Data security

We take technical and organizational measures to ensure the security of your personal data. Your data is protected against loss, destruction, falsification, manipulation and unauthorized access.

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