GEOFON has a long tradition of developing high-quality open software products for the seismological reasearch community. The best example is probably the SeisComP3 package (http://www.seiscomp3.org), which became one of the most widely used in the community, with hundreds of institutional licenses assigned. Other examples of client solutions to ease access to seismic data are WebDC3, fdsnws_fetch, and arclink_fetch. On the data centre side, some of our software products are core developments of the EIDA initiative (e.g. SeisComP3, Routing Service, Arclink), or tools needed for waveform data provisioning in real-time (i.e. Seedlink) and/or earthquake parametric data dissemination to other institutions like EMSC (e.g. HMB).