Manufacture of complex mechanically welded parts of all sizes and painting services...

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Manufacture of MSR, boilermaking equipment...

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Oil & Gas

Manufacturing according to drawings, cryogenic welding...

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On-site intervention

Specialized in industrial piping.

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Who are we ?

Sotech Technologies Services (STS) is a subcontracting company that has been taken over in April 2018 and that belongs to the family group VSB Industrie. STS is specialized in boilermaking of great thickness, large workpieces and pressure equipments. We propose manufacturing of mechano-welded workpieces, with a growth strategy to the turnkey activity.

Our company is growing on the nuclear and oil & gas (Liquified Natural Gas – LNG distribution) markets and on industrial piping installation. STS is also evolving on the industrial market (agrifood, defence, water, fine chemistry, stationery, etc.)

STS can rely on its qualified women and men to realize your tailor-made projects. STS is well-known for its welding and complex forming skills, to meet all of your requirements !

STS values

Values that provide us to earn our customers’ trust

Human values

Work in STS is above all a human adventure where out leitmotive is our men’s respect and involvement


Show generosity in action to meet our customers’ needs, thanks to our reactivity and skills.


Focus action on safety and quality management to both preserve our men and satisfy our customers.

Our domains

Sotech Technologies Services is operating in several domains:

Key figures

87 employees

Including 6 apprentices, excluding temporary workers

82 customers

French and international

563 QMOS

563 welding procedures qualification

9,5 M €

Our 2021 turnover

400 projects​

Manufacturing in our workshops

250 projects

Carried out on site

35 points on 45

Note on professional equality between women and men

Our resources

A cohesive human team of 87 employees spread over 5 poles : Technical, Manufacturing, Commercial, Administrative and Industrialization.

Our skill insure you a support and devices all along your project implementation : from quotation to delivery.

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Our achievements

This is some of Sotech Technologies Services achievements from its 4 main fields : Industry, Nuclear, Oil & Gaz and on-site intervention.


Put safety and quality management in the heart of the action to preserve our men and satisfy our customers.

Certification ISO

They trust us

STS is proud of its customers and counts among them French companies at the cutting-edge technology.

Our partners

STS can count on his local partners to support it in its development and growth.