mynth
04/2025

SERIMAX acquired by ALDEBARAN CAPITAL

FRANCE Industrial Services / Other Works / Welding & Piping Services EV €50–150M

Context

Serimax, a global specialist in advanced offshore and onshore welding solutions, is gaining independence from its parent company Vallourec. The subsidiary is being acquired by Aldebaran Capital Partners as part of the "New Vallourec" plan, which focuses on streamlining capital and refocusing on core activities. The management team, led by CEO Guillaume Graindor, will retain a minority stake in the newly independent entity.

In the past, Serimax was acquired by Vallourec in 2010 as part of its expansion strategy.

SERIMAX, which reported an EBITDA margin of [members only] in 2024, is valued in this transaction at an EV/EBITDA multiple of [members only], to compare with the average currently observed in the Business Services sector (11.4x).

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Target

Serimax operates as a global technical leader in mechanized welding services for highly complex pipeline projects. The organization functions as a mission-critical partner for international energy infrastructure, prioritizing precision and safety in the most demanding environments, including offshore and onshore installations. At the heart of its operations is a philosophy of total project integration, providing high-fidelity support from initial engineering phases to onsite execution and technical assistance. The entity differentiates itself through its proprietary hardware and custom-engineered equipment, ensuring high-quality standards and traceability in critical joint fabrication. Its strategy is fueled by a commitment to industrial modernization and a deliberate shift toward supporting the energy transition, particularly within carbon capture (CCUS) and low-carbon infrastructure.

Ent. Value

€50–150M

Equity Value

[members only]

Multiples

EV / Revenue

below 1.5x

EV / EBITDA

[members only]

EV / EBIT

[members only]

Historical Financials (EUR)

Year
Rev
EBITDA
EBIT
2024
€100–200M
[members only]
[members only]
2023
€100–200M
[members only]
[members only]

Other operations with SERIMAX

Other operations with SERIMAX

List of similar M&A transactions (Date, Acquirer, Target, Country, Sub-sector)
DateAcquirerTargetCountrySector
04/2010VallourecSERIMAXFRANCEWelding & Piping Services

REFERENCES

Valuation range: EV €50–150M

Revenue range: €100–200M

EV/Revenue range: below 1.5x

Note: This page provides detailed data on a private equity M&A transaction. Detailed and exact financial metrics for the acquisition of SERIMAX by ALDEBARAN CAPITAL are reserved for mynth community members. Register for free to unlock full data.

Authors: This transaction was contributed by a verified mynth contributor and cross-checked against available transaction documents and official company communications.

Target: serimax

Acquirer: aldebaran capital