While in the Federal Association for Innovation, Technology and Business Incubators Centers currently 145 technology parks are associated, the actual number of all German Technology Parks is much higher.
The core of such a Technology Park is mostly a technology center. This is a facility complex, where many young companies are working. These companies are working in innovative industries such as microelectronics, computer science, communications engineering or computer technology. In addition, Technology Parks that exist have focused on renewable energy. Often, companies can also obtain commercial or financial assistance to reduce the risks in the initial phase of a company. 
Three examples of German Technology Parks:
 Wikipedia: Technologiepark