Fingrid is a company that maintains and develops the Finnish electricity transmission grid. We created an activity-based working for the company’s head office in Mäntsälä, Finland. The interiors now support the brand image and give employees better prerequisites to interact and thrive. We used co-development methods throughout the design process: employees were consulted in workshops and information sessions. Office floors and functions were personalized with radiant colors and unique graphics. Bathing in natural light, the heart of the office is a meeting place where functions such as a café, post office, and library hall overlap.