Our project CALOGENA IS A SUBSIDIARY OF THE FAMILY-OWNED INDUSTRIAL GROUP GORGE

“With almost two decades of experience in the nuclear sector, our Group is delighted to be strengthening its contribution to the ecological transition and the development of a strong national industry.”

Raphaël Gorgé
CEO of GORGÉ SAS

A project supported by GORGÉ

Calogena benefits from the dual expertise of the GORGÉ group and the team of twelve people who developed the concept. The project has been launched in 2021 by a team comprising expert advisers from NucAdvisor, all of whom have held senior positions in flagship companies in the French and European nuclear ecosystem.

In addition, the GORGÉ group is contributing its expertise in industrial deployment. GORGÉ is a diversified industrial group specialising in high-tech businesses.

The GORGÉ group has been active in the nuclear sector since 2007. Nearly 300 employees are involved in industrial and engineering activities within two companies developed by the group. The SERES TECHNOLOGIES subsidiary has expertise in nuclear mechanical design, operating safety, nuclear safety and security as well as ergonomics. The BAUMERT subsidiary designs and manufactures technical doors for the protection of nuclear sites.

GORGÉ GROUP

CALOGENA IS A EUROPEAN PROJECT

WINNER OF FRANCE 2030 AND THE EUROPEAN SMR ALLIANCE, CALOGENA HAS OPENED A SUBSIDIARY IN FINLAND

Calogena has been selected as the winner of the “Innovative Nuclear Reactors” call for projects supported by Bpifrance as part of the France 2030 programme.

Through its transnational CityHeat project, Calogena is also one of only two French projects supported by the SMR industrial alliance launched by the European Commission.

The company, based in Paris, is mainly developed in Aix on its technical platform. Calogena opened its subsidiary in Finland in 2025: the country is at the forefront of nuclear district heating.

A solid industrial group

The group and its subsidiaries, two of which are listed on the stock exchange, generate revenues of 500 million euros and employ 3,300 people. GORGÉ SAS has a strong track record of creating and developing industrial technological companies.

For example, Prodways Group, founded in 2013 by Raphaël Gorgé in the 3D printing sector, has become a European leader in the sector. The company now has 460 employees and revenues of €80 million.

In recent years, the group has also built up a French technological champion in the field of navigation systems and maritime robotics, with EXAIL. This company generates revenues of nearly 300 million euros in 80 countries.

JULIEN DEREUX, CEO OF CALOGENA

JULIEN JOINED CALOGENA AFTER A CAREER AT EDF AND IN STRATEGY CONSULTING

“Low-temperature heating accounts for 1/3 of final energy needs in Europe, and 70% of it is produced by fossil fuels. The urgent need is to offer a simple, mature product to support the growth and decarbonisation of heating networks”.

Out team

Our teams are based in Aix-en-Provence, Paris and Helsinki

Raphaël Gorgé

Chairman

Julien Dereux

CEO

Xavier Bravo

CTO

Tor Stendahl

General manager Nordics

Nicolas Aplincourt

Civil engineering architect

Guy Willermoz

Head of reactor physics modeling and simulation

Sophia Gautier

Fluid system & HVAC architect

Pierre-Yves Lager

Layout & integration architect

Thibault Alleg

Head of licensing

César Dulac

External relations manager

Matéo Sochala

Business developpement and strategy manager

Jaakko Pullinen

Technical director for Finland

Yvann Hosatte

Mechanical adviser

Pierre Santini

Digital model design architect

Anne Montoya

PMO

Marien Barral

Multi-physics calculation engineer

Gaël Martinez

Mechanical designer

Damien Bisson

Electrical and automation advisor

Adrien Sellé

PMO support and operations

Pierre-Nicolas Houot

Mechanical design engineer

Max Sonzogni

Multi-physics calculation engineer

Sylvain Testylier

Safety mission pilot

Nicolas Vittet

Office manager

Loïc Le Berre

CFO (Gorgé SA)

Guillaume Deraisme

Board member

Céline Leroy

Legal director (Gorgé SA)

Hugo Soussan

Head of Institutional Communications (Gorgé SA)

Anissa Ouadah

Executive Assistant

Tristan Suzanne

Multi-physics calculation engineer

Sandrine Mariller

Project Budget and Planning Manager

Lucas FIlipuzzi

Projector

Scientific Council

Calogena benefits from the contribution of a group of twelve experts who contribute their technical knowledge and experience in the main French and international reactor development projects.

Alain Vallée

Former Group Technical Director at Framatome, then Director of nuclear activities at the CEA’s Saclay centre; he contributed to or directed the design of the 1300 MWe, 1450 MWe and then EPR reactors.

Dominique Vignon

A former Chairman and CEO of Framatome, he was involved in the planning, design and construction of numerous nuclear power plants, including the EPR.

Jan Bartak

Former head of nuclear development at ENGIE. Expert in the development of new nuclear power plant projects.

Hervé Bernard

Former Deputy Director General of the CEA. Expert in risk management and nuclear fuels

Jacques Chenais

Former Director of the Engineering Department at TechnicAtome, then Head of SMR at CEA

Giovanni Bruna

Former IRSN Scientific Director and member of the IRSN Staff Committee. Expert in reactor design, safety and operation.

Noël Camarcat

Former special advisor for nuclear R&D and international issues at EDF’s Nuclear Engineering and New Projects Division. Fuel cycle expert.

Michel Debes

Former manager at EDF in the fields of operation, maintenance and safety of nuclear power plants and the nuclear fuel cycle

Gérald Ouzounian

Former Scientific and International Director of ANDRA. Expert in heating networks and nuclear waste management.

Philippe Malouines

Former Chairman of the AFCEN RCC-M sub-committee. Expert in nuclear pressure equipment

Gérard Cognet

Former researcher at the CEA. Expert in thermal-hydraulics and nuclear safety

Jean-Philippe Girard

Former researcher at the CEA. IAEA expert