DELTA Fiber Nederland is a Dutch telecommunications company headquartered in Schiedam that builds and operates fiber optic networks across the Netherlands, serving approximately 1.7 million households and businesses. It provides high-speed internet, interactive TV, telephony, and mobile services under brands like DELTA and Caiway, with a focus on both consumer and enterprise markets including FTTO business fiber services. The company positions itself as a leading fiber expert, emphasizing network expansion and top-rated customer service.