21TORR Interactive

Operating from offices in Reutlingen, Stuttgart, Berlin and Hamburg, the German agency 21TORR has built digital products and services since 1994. Its clients include corporations, mid-sized companies, international brands, socially relevant organisations and tech startups. It has been owner-managed for 31 years, and it works in cross-functional teams in an agile, Scrum-based process where strategy, design and technology meet.

Products and services across the digital cycle

Its offer runs from company websites and customer platforms to member portals and sales apps, with AI assistants, AI strategy and AI platforms. Other strands are e-commerce on Shopify and Shopware, native business apps for iOS and Android, and UX work including branded interfaces, design systems and user testing, plus research and design sprints.

Designing for accessibility and inclusion

Accessibility and digital inclusion work aims to make products usable by everyone. The agency has described itself as a pioneer in this area, and the work runs alongside its user testing and research, so that accessibility is part of how a product is designed rather than added afterwards.

Named projects in several sectors

Projects named on its site include a fire safety company's product, where the user experience is treated as a safety factor, a member portal for 890 cooperatives, a central corporate website for a medical technology company, a sustainable platform for everyone, and a brand hub with a design system for BASF Agricultural Solutions. Other clients include a building society, which received guidance through its own modernisation, and a social organisation known for accessibility work.

Insights into design and AI

The agency publishes insights on current design and technology questions. Recent subjects include agentic experience, the design problem that AI agents create, what the EU AI Act means for UX design, and whether generative interfaces mark a real shift in UI design. Its business app work starts from the view that good apps need to generate lasting value for both users and companies.

Working in one of four offices

The agency's teams sit in four German cities, and it describes itself as a dynamic agency seeking people who want to shape its growth. Its process combines design research and strategy, service and interface design, digital engineering with front end and back end development, and native apps, so that a project runs from research to launch with one team.