Digital Excellence in Practice: Our Success Stories
Success Stories
Verified customer reviews from 25 years of e-commerce and digital projects
SCHIESSER GmbH
Clothing companies & e-commerce
„For the international presentation of our approximately 2,000 retail locations in nine countries, we needed a high-performance and sustainably maintainable solution. HQ GmbH developed a completely cus…“
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schiermeier.biz
Outdoor / E-commerce
„Due to significant performance issues and increasing dissatisfaction with our previous agency, we decided to switch to HQ GmbH. This decision has absolutely paid off for us. Even during the completely…“
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piercing-store.com
Specialized online retailer for exclusive jewelry and high-quality piercings
„I first became aware of HQ GmbH through business partners who recommended the company. This recommendation has absolutely proven to be spot on. Our Shopware shop previously had numerous technical prob…“
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SEO and marketing agency
„We have been working with HQ GmbH for 12 years and can wholeheartedly recommend the company. During this time, their team has reliably supported us in numerous technical projects and made a significan…“
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Fr. Sauter AG
Companies specializing in building automation, smart sensors, and technical facility management
„For many years, we have relied on HQ GmbH for the maintenance and further development of our international WordPress platforms. In addition to providing technical support for our central WordPress mul…“
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Ceramex Media GmbH
Online marketing, SEO and strategic SEO agency
„We have enjoyed a successful partnership with HQ GmbH for over 20 years. During this time, we have implemented numerous joint projects – from optimizing the performance of various websites with WordPr…“
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Autohaus Kühnert GmbH & Co. KG
BMW authorized dealer
„The team at HQ GmbH provided outstanding support during the technical implementation of our BMW-compliant website relaunch on WordPress. We particularly appreciate their straightforward communication…“
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SCHIESSER GmbH
Clothing companies & e-commerce
Challenge
For the international presentation of approximately 2,000 sales outlets in nine countries, SCHIESSER needed a high-performance, long-term maintainable and data protection compliant store finder solution with automated data transfer, individual presentation and high-performance search.
Our Solution
- ✓ Development of a custom import module for ERP raw data.
- ✓ Development of individual store landing pages with flexible HTML/CSS customization.
- ✓ Integration of Google Maps and a high-performance and fault-tolerant radius search based on Apache Tomcat and Apache Solr.
- ✓ Implementation of structured data via microdata and export options for store data.
Results
- Approximately 2,000 sales outlets in nine countries can be mapped automatically.
- High-performance and fault-tolerant filter and radius search.
- No manual maintenance required for store data.
- SEO-optimized, custom store landing pages.
- Export of store data, including for Google Business Profile.
- Flexible customization of HTML and CSS.
Customer Feedback
For the international presentation of our approximately 2,000 retail locations in nine countries, we needed a high-performance and sustainably maintainable solution. HQ GmbH developed a completely customized, GDPR-compliant store finder that was precisely tailored to our requirements. In addition to developing an import module for our ERP data, they created a flexible system with individual store landing pages, Google Maps integration, microdata markup, and a high-performance filter and radius search based on Apache Tomcat and Apache Solr. The ability to flexibly customize HTML and CSS, as well as export store data for Google Business Profiles, for example, significantly simplifies our daily work. We particularly appreciate their high level of technical expertise, continuous optimization, and reliable support. Requirements are quickly understood and implemented. Close communication has enabled numerous improvements to be implemented efficiently. The collaboration is based on partnership, solution-oriented, and technically advanced. Therefore, we continue to rely on HQ GmbH as our partner for the maintenance and further development of our system.
Silke Schmidt , Head of E-Commerce
schiermeier.biz
Outdoor / E-commerce
Challenge
Massive performance issues and increasing dissatisfaction with the previous agency necessitated a change of agency. The shop needed to be migrated without downtime and technically optimized to sustainably improve performance, stability, and scalability.
Our Solution
- ✓ Fail-free Shopware 6 migration within 48 hours.
- ✓ Performance and error analysis with optimization of Core Web Vitals and TTFB.
- ✓ Optimization of caching, system stability and scalability.
- ✓ Ongoing hosting, monitoring, maintenance and technical development.
Results
- 50% increase in overall shop performance
- A smooth move within 48 hours
- Improved Core Web Vitals
- Improved TTFB and server response times
- Sustainably improved shop speed and reliability
Customer Feedback
Due to significant performance issues and increasing dissatisfaction with our previous agency, we decided to switch to HQ GmbH. This decision has absolutely paid off for us. Even during the completely seamless migration, the performance of our online shop improved by approximately 50%. At the same time, the HQ team identified and resolved various technical problems and errors that had previously gone undetected for an extended period. We particularly appreciate the personal contact. For questions or problems, you can reach competent contacts directly – even by phone. You can tell that they don’t just process tickets, but genuinely investigate the root causes and find sustainable solutions. The collaboration is clearly structured and transparent. Processing times are realistically agreed upon and based on the respective priority. When things get truly critical, the team reacts quickly and with a focus on finding solutions. It is precisely this combination of technical expertise, personal support, and reliable implementation that makes HQ GmbH a strong partner for us in our daily e-commerce business.
Jörg Schiermeier , ownerRelated Projects

piercing-store.com
Specialized online retailer for exclusive jewelry and high-quality piercings
Challenge
The Shopware 6 shop had numerous technical problems following negative experiences with two previous agencies. Errors and deeper vulnerabilities had not yet been fully identified or resolved.
Our Solution
- ✓ Complete technical analysis of the Shopware 6 system.
- ✓ Elimination of existing errors and previously undetected weaknesses.
- ✓ Hosting migration to high-performance HQ servers.
- ✓ Sustainable performance optimization and ongoing expert support.
Results
- Complete stabilization of the entire online shop
- Elimination of existing technical errors
- Identification and remediation of previously undetected vulnerabilities
- Stable and reliable shop operation
- Improved system performance
Customer Feedback
I first became aware of HQ GmbH through business partners who recommended the company. This recommendation has absolutely proven to be spot on. Our Shopware shop previously had numerous technical problems that two other agencies neither identified nor resolved. HQ thoroughly analyzed the system, eliminated all errors, and even discovered further vulnerabilities that had previously gone undetected. Today, our shop runs stably, reliably, and significantly better than before. I particularly appreciate the personal and straightforward communication as well as the exceptionally fast response times. You can immediately tell that these are people who know their craft. For every problem, there is a well-founded solution, and the implementation is targeted and highly professional. I am also impressed by the value for money. They don’t waste time and effort, but work efficiently and with a focus on finding solutions. I always feel that our Shopware system is in the right hands with HQ.
Michael Jakob , ownerRelated Projects
Hanseranking GmbH
SEO and marketing agency
Challenge
Hanseranking requires a technically reliable partner for the development and maintenance of its own digital infrastructure, as well as for complex technical requirements arising from client projects. This includes, among other things, a customized management system with API integration for automated VoIP telephony, and the technical support and optimization of web and e-commerce projects for the companies Hanseranking serves.
Our Solution
- ✓ Custom backend developed and maintained
- ✓ API and VoIP integration implemented
- ✓ Technical infrastructure of customer projects is managed
- ✓ Performance, SEO & security continuously optimized
Results
- 12+ years of continuous collaboration since 2014
- Approximately 1,000 technical support tickets processed.
- Several hundred customer projects technically supported
- Custom Hanseranking backend developed and maintained
- Complex API, tracking, and VoIP integrations implemented.
- Ongoing support for Shopware, Magento, WordPress and other CMS projects
Customer Feedback
We have been working with HQ GmbH for 12 years and can wholeheartedly recommend the company. During this time, their team has reliably supported us in numerous technical projects and made a significant contribution to the success of many joint client projects. Among other things, HQ GmbH has developed a custom administration system (backend) for us, implemented the API interface connection between our sales department and automated VoIP telephony, and has been handling the technical SEO infrastructure management of numerous web projects for many years.
A. Kirchner , Managing Director
Fr. Sauter AG
Companies specializing in building automation, smart sensors, and technical facility management
Challenge
Fr. Sauter AG’s international web infrastructure comprises central and country-specific WordPress platforms for the group and its subsidiaries. Reliable operation, technical consulting, custom plugin development, and fail-safe operation without data loss were required.
Our Solution
- ✓ Maintenance of the central WordPress multisite architecture.
- ✓ Technical support for international subsidiaries.
- ✓ Development of custom WordPress plugins.
- ✓ Conceptualization and implementation of relaunches.
- ✓ Technical consulting and emergency service.
Results
- Stable operation of the international WordPress platforms.
- Maintenance of central and country-specific websites.
- Continuous knowledge retention through a consistent team of contacts.
- Short response times for urgent system problems.
- Providing support to internal webmasters through technical instructions and explanations.
- Long-term technical support for international web projects.
Customer Feedback
For many years, we have relied on HQ GmbH for the maintenance and further development of our international WordPress platforms. In addition to providing technical support for our central WordPress multisite architecture, the team also assists us with the country-specific websites of our subsidiaries worldwide. We particularly value the regular status meetings and constructive discussions on open topics. This allows us to maintain an overview of ongoing projects at all times and make strategic decisions efficiently together. A major advantage is the consistent team with dedicated contacts. This prevents knowledge loss and ensures our requirements are quickly understood. Even in urgent system problems, we can rely on short response times. The collaboration is always pragmatic and solution-oriented. Furthermore, our internal webmasters receive clear instructions and in-depth explanations for implementing new features and for day-to-day operations. This significantly simplifies their daily work. We experience HQ GmbH as a competent and reliable partner that has professionally supported the conception and technical consulting of our international web projects for many years.
Peter Schoenenberger , Head of Marketing and Product ManagementRelated Projects

Ceramex Media GmbH
Online marketing, SEO and strategic SEO agency
Challenge
Ceramex Media has required technical support for complex web and e-commerce projects since 2006. Their system landscape includes various shop and CMS platforms as well as custom software developments, all of which require ongoing performance, stability, and technical support.
Our Solution
- ✓ Custom development and technical support of web software.
- ✓ Support for Shopware, Magento, TYPO3 and WordPress systems.
- ✓ Highly available hosting for shop and CMS systems.
- ✓ Manufacturer-independent IT consulting and system optimization.
Results
- Significant cost savings through independent systems consulting
- Ongoing technical support for numerous web and shop systems
- Stable and high-performance operation of different platforms
Customer Feedback
We have enjoyed a successful partnership with HQ GmbH for over 20 years. During this time, we have implemented numerous joint projects – from optimizing the performance of various websites with WordPress and TYPO3, to developing and maintaining online shops based on Shopware, Magento, and WooCommerce, to custom software development, as well as ongoing hosting and technical support for our web projects. We remain completely satisfied. We are particularly impressed by their high level of technical expertise, the reliable performance of their hosting infrastructure, and their personalized, honest advice. This independent and practical guidance has helped us make economically sound decisions in many projects, resulting in significant cost savings. Our collaboration has been characterized by reliability, fair communication, and sustainable solutions for many years. Therefore, we continue to rely on the expertise of HQ GmbH for new projects.
Andreas Kirchner , Managing Director
Autohaus Kühnert GmbH & Co. KG
BMW authorized dealer
Challenge
For the BMW-compliant website relaunch, a standalone WordPress website had to be implemented in strict accordance with BMW AG’s extensive corporate identity guidelines. Additionally, the used car search function had to be integrated via an XML API, and the website required ongoing technical support and further development.
Our Solution
- ✓ BMW-compliant design and WordPress development including approval process.
- ✓ XML API integration of eAutoseller for used car search.
- ✓ Development of custom WordPress plugins for site and team management.
- ✓ Ongoing support, updates, further development and site integration.
Results
- Design 100% approved by BMW AG
- API integration for used car search
- 24/7/365 continuous, proactive technical support
- 99.999% availability
- High-performance and GDPR-compliant hosting
Customer Feedback
The team at HQ GmbH provided outstanding support during the technical implementation of our BMW-compliant website relaunch on WordPress. We particularly appreciate their straightforward communication and user-friendly ticketing system. We were especially impressed by their professional implementation of the XML integration for our used car search and the development of custom WordPress plugins for location and team management. Furthermore, what sets this collaboration apart is their proactive and immediate optimization of any issues the team notices while processing a ticket. Their rapid implementation and ticket processing make HQ GmbH an extremely reliable partner for us.
Ronny Weiß , Team Leader Marketing