UX Design Agency 

The more attractive, the more effective: the success of your website depends heavily on the user experience. We help you achieve positive user experiences. Starting with consulting and conception, through design and development, to content.

Our services as an UX Design Agency

We offer our clients a wide range of services in the areas of user experience and user interface design. Ensure satisfied customers with excellent website performance, stand out from the competition and increase conversions. 

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    Strategic Consulting

    Our UX experts develop customized UX strategies and user-centric solutions that align your business strategy with user needs and expectations. 

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    UX with a story

    Whether app, website, landing page or online store. Whether desktop, tablet or smartphone, a good user experience is not only crucial for a successful application, it also reflects the quality of your business and how you respond to the needs of your users.  

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    Validated User Research & Testing

    Is the success of your website not meeting your expectations? To eliminate potential risks when developing new digital products and features, you should always take user feedback into account. Interviews, expert reviews, user tests and A/B testing help to work efficiently and data-based. All our testing methods are thoroughly tried and tested. In addition, we have developed the Simply Usable process model together with the Frauenhofer Institute.  

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    Conversion Optimization

    In Conversion Optimization (CRO), we analyze the user behavior of your website based on data in order to uncover hurdles in usability and eliminate them. Even small optimizations pay off quickly and can be proven with figures. Especially in e-commerce CRO is indispensable, but it also makes sense in other areas.  

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    Digital Design

    A good web design not only increases your conversion rate, but also the satisfaction of your users in the long term. With a recognizable, contemporary color and image world, a responsive design or interactive content, you build an emotional connection to your customers.  

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    Icons & Design Patterns

    Icons convey messages. Done well, they do so within seconds. That's what makes them so important in UX. Our designers create high-quality icon palettes and design patterns and ensure positive user experiences.

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It is all about the user

To deliver a consistently positive customer journey, the user experience cannot be ignored. We make use of a wide variety of lean UX methods and models, such as Design Thinking, Human-Centered Design, User Journey Mapping or Prototyping.  

Your wishes, goals and corporate identity are always taken into account. Digital communication has never been more effective! Does the user find his way around the site? Is he encouraged to buy? Or in the best case even come back? We make sure of that! With intelligent UX concepts and state-of-the-art UI design.

Your advantages with us as your UX Design Agency

  • An improved user experience leads to a better performance

    If you optimize the user experience of your website, you will see that your website performs better based on various KPIs (e.g. click-through rate, conversion rate or time-on-page). 

  • Benefit from our experience in UX

    Thanks to our years of experience in UX and UI design, we know how to design your website in such a way that your target audience is ideally addressed and experiences an optimal user experience.

  • Working agile

    Look forward to transparency and quick response from our side. Internally, we work in agile teams - which enables efficient work. For us, a MUST in the digital industry.  

  • We think user-centered

    Every company and its (potential) customers need to be considered individually. We ensure a user-centric user experience that converts users into customers.

We care & we deliver


In SUNZINET we have found the optimal partner for the realisation of our corporate website.

"Because our all-round successful cooperation is characterised in particular by the spirit that is so important for coeo: dynamic and flexible, always striving for high quality and efficiency. This enabled us to position ourselves strongly in international competition in a very short time. We look forward to a long-term cooperation with further exciting challenges!"

Sebastian Ludwig Managing Director, Coeo

Professional & outstanding effects

"We have been working with SUNZINET for several years and have successfully implemented various measures and projects. We have become well attuned to each other, so that together we continuously optimize our digital channels. Thus, we can excellently address and inform our customers worldwide with our modern internet presence."

Katrin Köster Head of Company Communication, BPW

SUNZINET's commitment is outstanding

"As a company, we have great tasks ahead of us in many areas. Together with sunzinet, we develop sustainable strategies and translate them into functioning new processes. Communication and consulting with the sunzinet colleagues is fun and always takes place at eye level."

Dr. Arnold Rajathurai Head of Corporate Communications, Bayer

SUNZINET has already implemented our new website and now also our intranet

"We now have an employee platform that is intuitive to use and runs stably. Thanks to the new Digital Workplace, our employees can now network with each other even more effectively and we as a company are well positioned for the digital transformation."

Oliver Schaal Head of Communication and Public Relations, Rheinische Post Mediengruppe

The cooperation is always constructive and based on partnership."

"We experience SUNZINET as an important partner for the strategic and technical planning and implementation of our intranet. The cooperation is always constructive and based on partnership."

Kristina Streuff Head of Corporate Communications, Orthomol

The communication and consulting with SUNZINET colleagues is fun and always takes place at eye level

"As a company, we have major tasks ahead of us in many areas. Together with SUNZINET, we develop sustainable strategies and implement them in functioning new processes. "

Tim Tüßelmann Digital Marketing, Creditreform

We are more than satisfied with our new online store!

"The store is easy to use, looks very chic and has also extremely simplified the work of our colleagues. The cooperation with SUNZINET went smoothly and we got exactly the result we wanted."

Frank Wintergerst Head of E-Commerce, WOFI LEUCHTEN

We found the right partner in SUNZINET

"Thanks to SUNZINET, our intranet now meets the demands of a modern, intuitive and versatile intranet. We found the right partner in SUNZINET and were perfectly steered through this large project. The intranet has become a place for exchange and a sense of unity. For the corporate culture, a great success."

Johanna Steinke Head of Communication and Marketing, BIM Berliner Immobilienmanagement

We found the collaboration with SUNZINET on our first intranet to be very professional and cooperative

"The team at SUNZINET quickly understood what requirements needed to be met and together we created a helpful internal communication tool for our employees that supports us in our work every day and of which we are very proud. Collaboration and knowledge sharing in our company have improved significantly since the introduction of the new intranet - not least thanks to the intensive change communication."

Ann-Kathrin Krämer Head of Corporate Marketing, Art-Invest

With the decision for SUNZINET, we have made the right choice for our company

"A high quality of consulting for the new and further development of our website as well as great suggestions for new ways in inbound marketing with tools that help increase our efficiency and effectiveness - we are very satisfied and see ourselves well positioned for the future."

Dietmar Bernstein Senior Marketing Manager, Unger

leguano could not have found a better partner for the redesign of our store and the relaunch of the website

"We are completely thrilled with both the cooperation and the result! The team from SUNZINET was in permanent exchange with us and was thus able to react immediately to needs, wishes and challenges. The result: real added value. Many thanks for the patience during the development and the creative as well as professional advice during the implementation of our new modern brand appearance. We look forward to further joint projects!"

Fabian Welke Marketing Manager, Leguano

At SUNZINET, we appreciate the creativity and know-how in addition to the open communication.

"Our cooperation was characterised by the joint development of ideas and topics. Thanks to SUNZINET, we benefit from consulting and implementation in various areas, from CMS to web design to marketing automation."

Hans-Ingo Biehl CEO, Verband Deutsches Reisemanagement

Together with SUNZINET, we succeeded in bringing structure to our project

"To replace the existing intranet with a new, modern and above all up-to-date solution. For this, SUNZINET identified our needs, specified them and presented possible solution providers based on our requirements. Competent, cooperative, transparent and not to forget - very friendly. During the cooperation, it proved to be particularly valuable that SUNZINET is very broadly positioned due to its experience from many successful customer projects. Thanks to the cooperation with SUNZINET, we were finally able to select the right solution for us and gain clarity about how to proceed with the project."

Jörg Bartke Enterprise Architect, DuMont Mediengruppe

Many thanks for the helpful guidance!

"Within 3 months we created a new intranet in the standard of SharePoint Online - with the exception of two specifically developed web parts. I am very excited about everything that is possible in the standard and what new possibilities the intranet offers with the embedding in the Microsoft 365 world! On this first stage of the exciting learning journey, we were able to implement many things ourselves - in doing so, SUNZINET stood by us with open questions in the realisation and supported us in particular with the web parts "menu" and "sales figures" developed by them."

Melanie Giebel Collaboration Manager, Gerolsteiner Brunnen

The exchange is always constructive and appreciative, brings progress and is fun!

"We have a partnership-based, transparent and well-structured cooperation with SUNZINET, in which both sides contribute their expertise, experience and ideas."

Franziska Bittel Project Manager Marketing, Friedwald

With SUNZINET, we have had a reliable partner for our digital transformation at our side for many years

"Together we are continuously improving our digital presence and our digital processes. When working with SUNZINET, we particularly appreciate the strong expertise and the open communication at eye level. We are looking forward to our further, future projects!"

Carsten Huber Head of Marketing, Simonswerk

Let's talk about UX Design! 

Fill in now and we will contact you, either by phone or with a proposal for an appointment.

Simona Mayer
Head of Business Development

+49 221 / 355 009 0

  • Do I need UX Design for my website?

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    Happy users should be your goal. In order for your users to find their way around the website, find what they are looking for in a timely manner, and also have a pleasant brand experience, a smooth UX is an important building block. Dissatisfaction and hurdles in usability lead to users having negative experiences and switching to a competitor. 

  • What means UX Design?

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    UX = User Experience 
    UX encompasses all the perceived impressions and experiences that a user has when interacting with an application, service, environment or product. In UX design we are concerned with making the interaction between man and machine (digital application) more effective

  • What means UI Design?

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    UI = User Interface 
    UI design focuses on the visual design of digital applications such as websites, online stores or apps. The aim is to make the application as appealing as possible to users in order to ensure intuitive interaction and a positive user experience.  

  • What means usability?

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    Usability describes the extent to which a product supports the user in achieving his or her goals in a specific context of use. The more effective, efficient and simple the operation of a product, the higher its usability.