SiPearl’s Series A round  is backed by 2 existing investors:

European Innovation Council (EIC) Fund, from the European Commission is a deep tech investor across all technologies.

The French State, via French Tech Souveraineté, which is part of France 2030 led by the General Secretariat for Investment.
and a new investor: Taiwanese Cathay Venture – a subsidiary of Cathay Financial Holdings.

In addition to its CEO-founder, investors include Arm, Atos Group, through its Eviden business and a banking pool led by Caisse d’Epargne Rhône-Alpes.

SiPearl taped out its first processor, Rhea1 (pictured) at TSMC several weeks ago and it will be sampled in early 2026.

It is supported by compilers, libraries and tools, from traditional programming languages such as C/C++, GO and RUST to modern AI frameworks such as TensorFlow and PyTorch.

Rhea1 is  suitable for HPC workloads – its initial target market – and AI inference workloads.

Rhea1 will equip the CPU cluster of JUPITER, the first European exascale supercomputer which is owned by EuroHPC JU and operated by Jülich Supercomputing Centre (Germany).

It will also be a key component of  European collaborative projects such as Aero, OpenCUBE, HIGHER and Riser to promote the emergence of a sovereign European cloud, and Excellerat, MAX, ODISSEE, and Plasma-PEPSC to run simulation applications in strategic fields such as engineering, materials, dark matter, plasma.

The latest Series A funding round supports the industrialisation phase of Rhea1. It also accelerates R&D activities for the launch of next-generation processors that will meet the needs of supercomputing and new market segments, such as data centres, AI, and enterprises, ahead of the launch of Series B funding round in a few weeks.

“We are showing that Europe now has a competitor capable of challenging non-European leaders,” says SiPearl CEO and founder Philippe Notton.