UID GmbH (formerly User Interface Design GmbH) is a prominent German UX and software design consultancy founded in 1998. Headquartered in Darmstadt, the company operates additional project offices across Germany, including Ludwigsburg, Berlin, Cologne, Munich, and Mannheim, as well as Basel, Switzerland. Since January 2023, UID has operated as a member of the BAYOONET Group.
UID specializes in user-centered product strategy, usability research, interface design, and frontend implementation for enterprise software, consumer products, medical technology, and industrial machinery. In industrial and embedded hardware contexts, UID develops human-machine interfaces for machine tools, production lines, packaging machines, industrial robots, and handheld control units.
With over 25 years of market presence and more than 5,000 completed client projects, UID serves major industrial clients including TRUMPF, OPTIMA, and Bosch Rexroth (participating as a solutions partner within the ctrlX AUTOMATION ecosystem).