c-base e. V. is a non-profit association located in Berlin, Germany which has about 300 members. The purpose of this association is to increase knowledge and know-how regarding computer software, hardware and data networks. The association is engaged in numerous activities relating to these areas. For example the society has had stands at large festivals such as Children's Day where they introduce youngsters to topics like robotics and Computer-aided design.

The premises of the association are also used by other initiatives in and around Berlin as an event location or as function rooms, for example the wireless community network freifunk.net, the Chaos Computer Club or the Wikipedia group in Berlin. Any group which identifies themselves with the purpose of the c-base are also welcome to use the premises for meetings and events. Wireless LAN is available for all guests.