
SiPearl is a European semiconductor company focused on designing high-performance, energy-efficient processors for supercomputing and Artificial Intelligence (AI). Founded by Philippe Notton in June…

SiPearl is a European semiconductor company focused on designing high-performance, energy-efficient processors for supercomputing and Artificial Intelligence (AI). Founded by Philippe Notton in June…
Founded: 2019
Headquarters: Maisons-Laffitte, Île-de-France, France
Product focus: High-performance, energy-efficient Arm-based CPUs for supercomputing and AI (Rhea1)
Flagship customer / contract: EuroHPC JUPITER exascale supercomputer
Recent funding: €130M Series A final close (July 2025)
Sovereign high-performance computing and AI processors for supercomputing, defense, security, health, energy and climate domains.
2019
Semiconductor Manufacturing
€130,000,000
Final closing of a €130M Series A including participation from Cathay Venture, EIC Fund and France 2030 as described in company communications.
€90,000,000
Announced first closing of a Series A to launch Rhea1.
€7,400,000
Early seed funding from the EU Horizon 2020 programme.
“Includes strategic and public investors such as Arm Holdings, Cathay Venture, European Innovation Council/EIC Fund, France 2030 and Eviden”
❓ About SiPearl… SiPearl is the European fabless designer of sovereign secure high-performance energy-efficient CPUs for HPC, AI and data centres. These CPUs will help address strategic challenges in the fields of security, defence, medical research, energy, climate and engineering with a reduced environmental footprint.
In June 25, SiPearl completed the design of the most complex CPU ever designed in Europe, Rhea1. Featuring 80 Arm Neoverse V1 cores, with 61 billion transistors, it is currently in production at TSMC. Sipearl CPUs will equip the two first European exascale supercomputers belonging to EuroHPC JU: Rhea1 will be integrated into the JUPITER machine based in Germany and Rhea2 will be part of Alice Recoque in France.
Incubated Within The European Processor Initiative (EPI) Consortium And Seed-funded By The European Union, SiPearl Employs Almost 200 People In :
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Following a €130 million Series A, the company has launched its Series B round.
🎯Missions SiPearl is developing the next generation of processors dedicated to European supercomputers. Within the Linux Kernel team, this internship focuses on exploring the use of Rust for Linux by porting an existing performance monitoring driver.
The objective of the internship is to port the SiPearl uncore Performance Monitoring (PM) driver from C to Rust. This driver interacts with DDR and HBM performance counters and exposes them to the Linux perf user-space subsystem.
During This Internship, You Will:
🔍What makes you a good match for the role
📍 Location -> Castelldefels SiPearl is the European fabless designer of sovereign secure high-performance energy-efficient CPUs for HPC, AI and data centres. These CPUs will help address strategic challenges in the fields of security, defence, medical research, energy, climate and engineering with a reduced environmental footprint.
This new generation of microprocessors will first target EuroHPC Joint Undertaking ecosystem , which is deploying world-class supercomputing infrastructures in Europe for solving major challenges in medical research, artificial intelligence, security, energy management and climate with a reduced carbon footprint. 🌱
Incubated Within The European Processor Initiative (EPI) Consortium And Seed-funded By The European Union, SiPearl Employs Almost 200 People In :
Following a €130 million Series A, the company has launched its Series B round.