Web Development Agency

We ensure a digital presence that stands out from your competitors, captures the attention of your target group and remains in the memory for a long time. To achieve this, we use state-of-the-art technologies and proven methodologies.


CMS systems, UX Design, Web- und Mobile App Development  

As a web development agency, our goal is to create customer interfaces - using state-of-the-art CMS solutions, a customized UX strategy, and technologies that best fit your business model and goals.

Our services as a Web Development Agency 

Our services range from individual expenses to full consulting, conception and development. No matter if you need a new CMS for your website, want to optimize your website performance by means of UX or just want technical support - we are the right partner. 

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    CMS Systems and Headless CMS Systems

    We implement state-of-the-art CMS systems that make your web presence unique and enable easy content entry, management and presentation. Our software portfolio also includes Headless CMS.  

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    UX & UI Design

    We offer our customers a wide range of services in the areas of user experience and user interface design. With that you ensure a great customer experience increase conversions.  

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    Mobile App Development

    We design and develop progressive web apps and native mobile apps for you and ensure a holistic mobile presence. Our developers use the latest technologies for development. Our designers ensure a modern look and a positive user experience.

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Your advantages with us as a Web Development Agency 

  • Benefit from our expertise and partner portfolio 

    Individual business models and strategies require custom-fit technologies. As your web development partner, you benefit from our expertise and our portfolio of technology providers and services. 

  • Future-proof technologies ensure fast processes  

    We implement cutting-edge technologies and stand by you as a reliable partner. With future-proof technologies, we bring your web presence to the next digital level. 

  • 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 help you achieve a positive user experience and excellent performance 

    Our designers and CMS experts implement your web presence in line with your target group and ensure a positive user experience.  

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

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

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

Our projects


High quality of online presence for SIMONSWERK

A web presence at the highest level was to be created. This included the rollout in 12 countries worldwide based on TYPO3. The goal of the new website was to communicate and sustainably strengthen the internationality of the company. In addition, the new corporate identity was to drive market expansion.
And that's exactly what we did!


The Berufswahlapp

The aim of the berufswahlapp project was to develop an interactive app for young people that would enable them to identify their skills and interests and direct them to suitable professions. After numerous tests and stakeholder surveys, the result is more than impressive.


Bundeskunsthalle: Digitizing the art experience

SUNZINET has developed an app for the Bundeskunsthalle to digitize the art experience on offer and to bring together the various information and services of the Bundeskunsthalle in one app for visitors. The new Digital Foyer of the Bundeskunsthalle includes, among other things, information on current and future exhibitions and events as well as 360-degree views of the premises.


A website relaunch with synergies

For a strong online presence as well as a professional website appearance, SUNZINET relaunched a website for Boniversum, a subsidiary of Creditreform AG. SUNZINET supported the credit rating company from the system change to the user experience optimization. In order to use synergies from the parent company, we carried out a system change from CMS WordPress to TYPO3. The adaptation into existing Creditreform modules was thus unproblematic.

Good relationships begin personally

Fill in now and we will get back to you by phone.

Simona Mayer
Head of Business Development

0221 / 355 009 13

  • What are the meanings of UX, UI and CX stand for? 

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    UX stands for User Experience and describes the user experience of users on a website.  

    UI Design focuses on the visual design of an interactive application.

    CX stands for Customer Experience and focuses on the overall experience of the customer.

  • What does CMS mean?  

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    CMS stands for Content Management System. CMS are programs in which content is created, edited and published. The content can consist of texts or multimedia documents.   

  • Which CMS systems are available?  

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    Choosing the right CMS system is not that easy. There are up to 300 different CMS systems on the market. The most popular among them are TYPO3, Contentful & Wordpress.   

  • What are Headless CMS?  

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    In contrast to the traditional CMS, a headless CMS does not have a front end, but only a back end. Contents are stored in a structured way. Thanks to APIs (interfaces), the content is played out in a formatted way. Headless CMS systems enable an efficient design of the uniform digital experience.