Web Agency Düsseldorf for E-Commerce, Apps & Software
Innovative. Authentic. Our Team.
Since 2013 we have been building digital products that work in everyday use. A team of developers, designers and strategists in Mönchengladbach and Düsseldorf, with dedicated contacts instead of ticket numbers.

- 13
- Years in Business
- >25
- People in the core team
- >100
- Freelancers on call
- >300
- Projects

We are a forward-thinking digital agency specializing in tailor-made projects in app development, e-commerce, SEO and digital marketing. With a team of experienced experts, we combine creative solutions with technical excellence and strategic vision. Our mission is to bring our clients' visions to life through innovative strategies and sustainable results. As your partner, we accompany you at every step of digital transformation and growth.
Our Values
Economic sustainability
We strive for long-term success for ourselves and our clients by using resources efficiently and acting in an economically responsible way.

Integrity
Our actions are characterized by honesty, transparency and ethical principles. We maintain open communication and keep our promises.

Courage
We bet on bold ideas and are willing to take new paths. Our willingness to take risks drives us to push boundaries.

Flexibility
Flexibility and speed shape our projects. We quickly adapt to change and use dynamic methods for optimal results.

Drive for innovation
A constant drive for innovation is in our DNA. We explore new technologies and approaches to create forward-looking solutions.

Social responsibility
We are committed to the community and to social projects. Our goal is to make a positive contribution to society.

From the couch to a digital agency

Paul Kalisch
Brimming with ideas for consulting, project management and marketing. Pushes nextlevels forward with heart and clever strategies.

A dream, 20 euros, no turning back – just the beginning of our story.
Paul Kalisch, Executive Partner
Slawa Ditzel
Tackles software development and SEM pragmatically. His skills set new standards and drive nextlevels forward with fresh, smart approaches.

What drives us? Pushing limits, constantly reinventing – despite every obstacle.
Slawa Ditzel, Executive Partner

Paul Kalisch
Executive Partner
The beginning of a success story
In 2013, with nothing but a vision, a couch as an office and a starting capital of just 20 euros for the business registration, the extraordinary journey of nextlevels began. Paul Kalisch and Slawa Ditzel, two ambitious minds with a shared passion for the digital, decided to push the boundaries of what's possible. They wanted to help companies succeed in the digital world. From the very beginning, nextlevels stood out for its strong drive to innovate and its ability to deliver creative and technologically advanced solutions. Founding the company from the couch symbolizes not only humble beginnings but also the founders' unwavering belief in their idea and their ability to achieve maximum results with minimal resources.

Slawa Ditzel
Executive Partner
Growing against all odds
Despite the challenges of building a company from the ground up, Paul and Slawa weren't discouraged. Their journey was marked by ups and downs, but their relentless drive for innovation and willingness to take risks have made nextlevels what it is today: a thriving digital agency leading in app development, e-commerce, SEO and digital marketing. By combining technical know-how, creative marketing strategies and deep commitment to their clients, nextlevels has delivered numerous successful projects and built long-term partnerships. The story of nextlevels is a living example of how a simple idea and 20 euros of starting capital can grow into a company that shapes the digital landscape and helps businesses unlock their full potential.
Awards
- 2015Innovationspreis-IT Best of 2015 (Web 2.0 & Social)Initiative Mittelstand
- 2018Innovationspreis-IT Best of 2018 (Apps)Initiative Mittelstand
- 2025Kununu Top Company 2025kununu
Services
If you want custom software developed, nextlevels covers architecture, development and operations from a single source.
Our locations
Our team is based in Mönchengladbach and Düsseldorf and works for companies across North Rhine-Westphalia – on site in the region and remotely with the same fixed contacts.
Mönchengladbach
Konrad-Zuse-Ring 12
41179 MönchengladbachClient from Mönchengladbach: Xtreme Events
Düsseldorf
Lorettostraße 54
40219 Düsseldorf
