Development of a certifiable information security management system (ISMS) for the organisation and operation of process IT for energy services

As a modern energy and service company with around 1,000 employees, DEW21 and its network subsidiary Dortmunder Netz GmbH (DONETZ) aim to offer the best possible combination of forward-looking services and the in-depth knowledge of an experienced municipal utility company. Almost 600,000 people and numerous businesses in and around Dortmund rely on the company’s natural gas, electricity, heating and water supplies every day.