SiPearl Tapes Out Rhea1 Processor, Closes Series A, Preps Series B

SiPearl has taped out Rhea1, its first-generation processor designed to power Jupiter, Europe’s first exascale supercomputer.

By Anne-Françoise Pelé, EETimes Europe | July 16, 2025 

There is no sovereign AI without sovereign hardware. As geopolitical and economic uncertainties intensify, Europe can no longer rely so heavily on U.S. hardware to process its strategic data. It is a matter of security and independence. Despite the many obstacles along the way, SiPearl has taped out Rhea1, its first-generation processor designed to power Jupiter, Europe’s first exascale supercomputer. The Maisons-Laffite, France-based startup now intends to accelerate its roadmap with the closing of a €130 million Series A round and the upcoming preparation of a €200 million Series B round. 

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