When Hach and Lange merged under Danaher, two distinct design cultures needed unifying. Global research revealed shared user needs, guiding the creation of a scalable Visual Brand Language rooted in accuracy, ease of use, and durability. Iterative concepts, prototyping, and a signature design toolkit delivered a cohesive system supported by a step‑by‑step engineering guide. The result: improved usability, elevated brand presence, and a design standard still in use today.