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Serimax
Serimax, global leading provider of mechanized orbital welding solutions
Carve-out from the Vallourec Group, Serimax offers its international clients a wide range of mechanized orbital welding solutions. The group is involved from the engineering phase to execution, providing customized equipment and on-site technical support.
With around 600 employees across 12 countries worldwide, with a strong presence in France, Serimax generated c.€105m in revenue in 2024.
Serimax has developed a cutting-edge expertise on mechanized welding, and now aims to diversify its activities into new promising energy transition markets.
Investment date
July 2025
Key figures
1978
Year of creation
1.25 x
Earth perimeter of pipeline welded since inception
600
Employees
Testimonies
« We are pleased to support the Serimax teams in this new phase of development. In a world where the shortage of welders has become critical, we have been particularly impressed by Serimax’s expertise and the international ambitions of its management team. Our investment thesis is to capitalize on the cutting-edge expertise developed by the company, to continue diversifying its activities into new promising Energy transition markets such as nuclear and hydrogen. »
Edouard Lesieur, Partner at Aldebaran
« This carve-out from the Vallourec group marks the effective restart of a great entrepreneurial journey which will allow us to accelerate our growth projects. Serimax, undisputed worldwide reference in its domain, brings top-level expertise to address challenges related to the energy transition. Aldebaran’s experience in carveouts made them the ideal partner we wanted to team up with. »
Guillaume Graindor, Managing Director of Serimax
Portfolio
News
14/04/2025
Vallourec se sépare de sa filiale de soudure mécanique
Poursuivant son recentrage stratégique, l’expert des tubes sans soudure vend sa filiale dédiée au soudage mécanique Serimax,...
14/04/2025
Aldebaran détache Serimax de Vallourec pour 79 M€
Serimax prend son indépendance. La filiale de Vallourec, spécialisée dans le soudage mécanique, s’apprête à...
14/04/2025
Aldebaran enters into exclusive negotiations with Vallourec for the acquisition of Serimax, a global leading provider of mechanized orbital welding solutions
Paris, April 14th 2025. Aldebaran Capital Partners, an independent management company dedicated to the complex transformation of small-and-mid-sized companies...