Nuuday, a privately owned company headquartered in Denmark, operates as a subsidiary of TDC Group, with its own subsidiaries including Eesy, Fullrate, Hiper, Relatel, TDC Erhverv, Telmore, and YouSee. Founded in 2019, it employs approximately 3,010 individuals and reported $2.1B in revenue as of 2024. Functioning as a telecommunications and digital services provider, Nuuday serves approximately six million customer relations across nearly all Danish households and businesses. The company was established as the customer-facing service arm of the former TDC Group, following a strategic split from the infrastructure entity, TDC NET. Nuuday offers connectivity, communication, and entertainment solutions, including mobile, broadband, TV, and complex B2B services. It is currently undergoing a multi-year digital transformation, partnering with firms like Netcracker and Kyndryl, to replace legacy mainframe systems with a modern, cloud-native IT stack.