High-end exascale supercomputer, JUPITER hosted in Germany with mid-range supercomputers DAEDALUS, LEVENTE, CASPIr and EHPCPL in Greece, Hungary, Ireland and Poland.

Tech firms say Britain's commitment to the tech needs to match the EU's.

The European Union will spend one billion euros ($1.2 billion) to try to catch up to China, the U.S. and Japan in supercomputing, the European Commission said Thursday. But as the initiative launches, uncertainty over Brexit is creating anxiety among British computer scientists that the U.K. may miss out on opportunities from the plan.