Data protection declaration

We appreciate your interest in our website.

The protection of your personal data during the collection, processing and use during your visit to our website is very important to us. Your data is protected in accordance with the legal regulations.

Please take a moment and read the information below. It provides information about how we handle personal data, for what purpose this data is used, to whom we forward this data and how we protect your personal data.

Your personal rights are our top priority and we make every effort to protect and guarantee these rights.

Controller for the processing of your personal data according to the GeneralData Protection Regulation (GDPR):

Holtmann GmbH & Co.KG
Adam-Stegerwald-Straße 9-15
30851 Langenhagen

+49 511 74074-0

Collecting and processing of data

Every access to our website and every retrieva of a file stored on our website is logged. The storage serves internal system-related and statistical purposes.

To be logged:

  • name of the retrieved file,
  • date and time of retrieval,
  • transferred amount of data,
  • message about successful retrieval,
  • used operating system,
  • browser and browser type,
  • website from which is was forwarded,
  • Internet service provider,
  • visited websites and
  • requesting domain.

Additionally, the IP addresses of the requesting computers are logged. The controller, however, does not draw conculsions on a person.

These data is only required to properly display the contents on our website, to optimise the content permanently for you and to support criminal prosecution in the case of hacker attacks.

Insofar as personal data (such as name, address, e-mail address, etc.) is collected on this website, this is done in voluntary agreement with you and in your knowledge.

The personal data is collected and processed by us within the framework of the provisions of the Telemedia Act (TMG), the EU General Data Protection Regulation (GDPR) and the Bundesdatenschutzgesetz (BDSG).

A revocation is possible at any time.

Use and transfer of personal data

So far as you provided personal data to us, we use this in accordance with the European and German data protection regulations and only for answering your requests, for statements, for settlement and termination of contracts conculded with you, for the technical administration and perhaps for the advertising of our products and services if we have your consent or if this is permitted by law.

Your personal data is only transferred to third parties or transferred in any other way if this is required for the contractual performance – especially the transfer of order data when integrating service providers and/or suppliers etc. -, required for billing purposes or if you have consented in advance. You have the right to withdraw a given consent for the future at any time.

Contact form

All your personal data and further information that you give to us via the configured contact form on our website, is collected and processed only for the purpose of the processing and answering of your requests on the basis of Article 6 (1) subsection 1 lit a) and b) GDPR. Your data is transferred to us by e-mail from our provider. Unfortunately, we cannot contact you and process your request if you do not provide the necessary information. An automatic decision making does not take place.

A transfer of your provided personal data to third countries or an international organisation does not take place and is also not in planning. A transfer of your personal data to external third parties does not take place. Your personal data that you provide to us via the contact form is stored for the duration of the processing of your request and is deleted or locked immediately after the processing is finished.

Employee portal

We process your personal data exclusively in the context of the employment relationship or contractual relationship as well as to answer your inquiries.

The required information according to Art. 13 DSGVO is provided to you upon receipt of an employment or contractual relationship.

Rights of data subjectss

According to Article 15 GDPR, you have the right to request information about the processing of your personal data. Furthermore, you are free to claim your rights on the correction, deletion or, if deletion is not possible, on the restriction of the processing and on data portability according to Article 16-18, 20 GDPR. If you want to claim this right, please refer to our data protection officer.

Furthermore, you have the right to make complaints at the responsible supervisory authority at any time. Should you think that the processing of your personal data does not take place within the observance of the data protection laws, we kindly ask you to contact our data protection officer.

Furthermore, according to Article 13 (2) lit. b) GDPR, you have the right to contradict the processing of your personal data at any time.

Protection of the stored data

We use technical and organisational security measures to protect your personal data from manipulation, loss, destruction or access by unauthorised persons. Our security measures are continously improved and adapted according to the state-of-the-art. It cannot be excluded that data that you transfer unecrypted cannot be accessed by third parties during transmission. We point out that regarding the data transmission via the Internet (e. g. at the communication by e-mail) no final secure transmission can be guaranteed. Sensitive data should therefore either not be transferred at all or only via a secure connection (SSL) via the Internet.

Protection of minors

The consent to the processing of personal data can only be given by a person of legal age. For information society services, the consent of a child from the age of sixteen is permitted under Art. 8 GDPR.

Storage of anonymised data/cookies

On this website, usage data are collected and stored in anonymous form. For this purpose, so-called "cookies" can be used. These are text files that are stored on your computer and that allow an analysis of your use of the website. However, these collect and save the data exclusively in pseudonymous form. They are not used to identify you personally and are not merged with data about the bearer of the pseudonym. We use this information to determine the attractiveness of our website and to continually improve its content.

The use of the website is also possible without cookies. If you do not give your consent, no cookies will be set.

Tracking pixel

Furthermore, this website uses tracking pixels that collect and use information about the surfing bevahiour of your visit in anonymous form. It collects, processes and uses data such as operating system used, browser used, screen resolution, time of request, activities on the website during a session, IP address, location (region). This information is used for marketing purposes and to improve the advertising offer. The technology allows you to see targeted product recommendations as appropriate banner ads when visiting other websites. Your data will not be used for other purposes. A disclosure to third parties does not take place. If you do not agree with the collection of your data, you can prevent this by appropriate settings in your browser or via this link .

Data Protection Officer

If you have any questions about data protection, please contact our data protection officer S-CON DATENSCHUTZ, Kriegerstraße 44, 30161 Hannover (

Data protection declaration for the use of Google Analytics

This website uses Google Analytics, a website analysis service of Google Inc. ("Google") that uses cookies. Cookies are text files that are stored on your computer and that allow an analysis of your use of the website. Cookies transfer the generated information about your use of this website usually to a server of Google in the USA and are stored there. As this website however makes an IP anonymisation, your IP address will be shortened by Google beforehand within member states of the European Union or other contracting states of the Agreement on the European Economic Area.

Only in exceptional cases will the complete IP address be sent to Google in the USA and shortened there. Google uses this information on our behalf to evaluate your use of the website, to compile reports on website activity, and to provide other services related to website activity and Internet usage to the website operator. There will be no merging of the Google Analytics transmitted by your browser IP address with other data from Google.

By setting your browser software accordingly, you can prevent the storage of cookies; however, please be aware that if you do this you may not be able to use the full functionality of this website. You may also prevent the collection by Goolge of the data generated by the cookie and related to your use of the website (including your IP address) as well as the processing of this data by Google by downloading and installing the browser plug-in available under the following link:

You can prevent the collection of your data by Google Analytics by clicking the following link. An Opt-Out-Cookie is set that prevents the future collection of your data when visiting this website: deactivate Google Analytics

If you delete the cookie in your browser, you must enable the Opt-out-Cookie again.

Double Click

This website uses DoubleClick for Publishers ("Doubleclick"), a service of Google (Google Inc., 1600 Amphitheat-re Parkway Mountain View, CA 94043, USA).

Doubleclick is a platform for the placement, management and optimization of ads on websites. With Doubleclick we can reach and present personalized ads to website visitors who have shown interest in certain content areas. This is made possible through an analysis of their use of our website, including other site pages, and on other websites within the Google display network (Google itself, Google Ads, and other websites). For this purpose, Google uses DoubleClick cookies, which are stored on your computer. Most cookies contain a cookie ID. This is a sequence of characters that match websites and servers to the browser where the cookie is stored. It enables the websites and servers to distinguish the browser from browsers with other cookies and identify every browser with a unique cookie ID. This ID is used exclusively for the unique identification of a web browser on a certain comput-er and not to identify a person. DoubleClick cookies do not contain or store any personal data of users.

You can prevent the storage of cookies by setting your browser software accordingly; However, please be aware that in this case you may not be able to use all the features of this website to the full. You can also set your browser to generally block cookies from the requesting domain. You can also delete cookies from your computer at any time.

The collection of your personal data as part of this service is only after your express consent. This is required by Google in accordance with their policy: information about the collection and processing of your data by Google and your corresponding rights as af-fected person can be found in the Privacy Policy of Google under:


We operate an appearance on the employers review portal "Glassdoor". The Glassdoor Inc. is a company registered in Delaware with offices at 100 Shoreline Highway, Mill Valley California, USA ("Glassdoor"). We point out that we do not have knowledge of the contents of the transmitted data as well as their use by Glassdoor Inc. The following link leads to the Privacy Policy of Glassdoor Inc.:

Google Maps

Our website uses Google Maps API (Application Programming Interface) for the visual presentation of geographic information (maps). Google Maps is operated by Google Inc., 1600 Amphitheatre Parkway, Mountain View, CA 94043, USA. By using Google Maps, you agree with the collection, processing and use of the automatically collected data and the data entered by you during the use of Google Maps by Google or their representatives or third provider.

When using Google Maps, information about your use of our website, including your IP address, is transmitted to and stored by Google on servers in the United States. The transfer of data to the USA is associated with risks under data protection law. If you do not want this, you can deactivate the service of Google Maps and prevent the data transfer to Google. To do this, you need to disable JavaScript in your browser. We point out, however, that you cannot use the map display in this case.

More information about the collection and processing of your data by Google and your corresponding rights as data subject can be found in the Privacy Policy of Google under: as well as in the terms of use for Google Maps or Google Earth under: