DELTA Zakelijk is the internet and voice provider for businesses with a high-quality fiber-optic network suitable for processing high bandwidth, connecting companies and organizations throughout the Netherlands. Specializing in industrial estates and in rural areas, with their own core network, a business service desk, and a 24/7 Network Operations Center, DELTA Zakelijk is active in several hundred business parks.

DELTA Zakelijk is part of DELTA Fiber Netherlands, with its networks available throughout the country with more than 650 000 homes and businesses are now connected. Their fiber-optic network is constantly expanding, making fast internet accessible to more and more companies.