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Sigmaphi

Designs and manufactures electromagnets for particle accelerators used in research, medical, industry and energy projects

Saint-Ave, FranceFounded 2001sigmaphi.comWebsite technologies

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Highlights

  • New on EvolcAdded 2026-10-28

About Sigmaphi

Sigmaphi designs and manufactures electromagnets and magnetic systems for particle accelerators, covering design through final measurements. Its magnets are used in research, healthcare, industry and energy, including proton therapy and fusion reactors.

Customers are organisations that operate particle accelerators in research, medical, industry and energy settings. The company names the CERN Large Hadron Collider, the Paul Scherrer Institute synchrotron, the SPARC fusion reactor at Commonwealth Fusion Systems and the Normandy Hadrontherapy cyclotron among the accelerators using its products. It builds tailor-made solutions for specific projects.

The business dates to 1981, when Henri Le Gal founded it in Paris. It moved to Vannes in 1994 and is registered in Saint-Avé, France. Subsidiaries were set up in China (2008) and Japan (2009). Breizh Rebond has been the main shareholder since 2022, and the Brittany Region provides financial support. The company is hiring across research, design drafting, engineering, procurement and production roles.

Product: Custom electromagnets and magnetic systems for particle accelerators, from design to final measurements.

Public tenders won

1 tender won since 1 Jan 2024 from 1 public buyer in France, worth €3.7M as awarded. From EU award notices (TED) that name Sigmaphi by its registry number.

  • 10 Apr 2025 COMMISSARIAT A L' ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (CEA) · FOURNITURE D’UN AIMANT SUPRACONDUCTEUR POUR LA SOURCE D’IONS ASTERICS SUPPLY OF A SUPERCONDUCTING MAGNET OF THE ASTERICS ION SOURCE · €3.7M notice

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Jobs at Sigmaphi

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