Core Language Year Developed Fast-DDS eProsima EMEA Apache License 2.0 C++ 2014 Cyclone DDS Eclipse Foundation project, driven by ADLINK EMEA Eclipse Public License 2.0 and Eclipse Development License 1.0 C 2011 OpenDDS OCI NABU Custom C++ 2005 Connext DDS RTI NABU Extensions are open source C++ 2005 (NDDS – 1995) CoreDX DDS TwinOaks NABU Not open source C 2009 Gurum DDS GurumNetworks APAC Not open source C    Table 1.