In 1974, Logica, together with the French company SESA, set up a joint venture, Sesa-Logica, to undertake the "Euronet" development. The project, with the support of partners throughout Europe and the assistance of Bolt, Beranek and Newman in Cambridge, Massachusetts, used the packet switching technology of the NPL network and Arpanet and X.25 protocols to form virtual circuits. It established a network linking research centres in a number of European countries. They hired Roger Scantlebury in 1977 who had worked on the European Informatics Network, a datagram network linking CERN, the French research centre INRIA and the UK’s National Physical Laboratory.