Paris, France –23 June 2026 – Bull, a leader in advanced computing and AI, today announced that its systems continue to lead the Green500 ranking of the world’s most energy-efficient supercomputers, occupying the top three positions for the second consecutive edition. Bull has also increased its presence in the TOP500, the list of the world’s most powerful supercomputers, to 59 systems, including JUPITER, Europe’s most powerful supercomputer, ranked #5.