What Serimax does

Serimax is a France-headquartered full-service welding company founded in 1978 and domiciled in Roissy-en-France. The company delivers mechanized orbital and manual welding, integrity management, pipe-end inspection, and digital welding services for onshore and offshore pipeline construction, operating from 12 fixed locations across more than 130 countries and running approximately 90 concurrent projects per year. Its installed base exceeds 500 SATURNAX welding bugs (across five variants — SATURNAX 01–05), 120 PFM machines, and 130 ILUC heads, supported by dedicated equipment such as EXTERNAX, MULTINAX, INTERNAX, MAXILUC, ROXANE, and ICBU clamps and bug lines. Digital and inspection product families include SCANVISION HD, CLEVERSCAN, BEVELSCAN, and the CLEVERWELD welding service. End markets span oil & gas, hydrogen, CCUS, offshore wind, nuclear (Fit-4-Nuclear qualified), and water pipelines, with cumulative throughput of more than 3,000 km of pipeline and 12,000 CRA/CLAD welds delivered annually and a 98% first-weld acceptability rate.

The business model is project-based services and equipment deployment, sold on a quote-driven basis to EPC contractors and energy operators, supplemented by training delivered through Serimax's Welding Technology Centre (which has hosted 300+ clients and retains 80% of trainees). The company generates revenue by deploying owned welding fleets and certified personnel onto client pipeline scopes, then extending into adjacent inspection and digital services; pricing is project-specific with no published rate card. Serimax is privately held following its 2025 acquisition by Aldebaran, ending a 15-year ownership period under Vallourec that began in 2010. Certifications include ISO 9001, ISO 14001, ISO 45001, ISO 3834, and Fit-4-Nuclear. Headcount is in the 501–1,000 range and the company has not publicly disclosed revenue.

Name

Serimax

Legal name

SERIMAX

Website

https://serimax.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Serimax is a France-based full-service welding company providing mechanized orbital and manual welding, integrity management, and inspection services for onshore and offshore pipelines, serving oil & gas, hydrogen, CCUS, offshore wind, nuclear, and water projects across 130+ countries from 12 fixed locations.

Ownership category

akta.pro rank

Product category

Industrial Pipeline Welding Services

NAICS

Oil and Gas Field Machinery and Equipment Manufacturing (333132), Engineering Services (541330)

SIC

Oil & Gas Field Machinery & Equipment (3533), Services-Engineering Services (8711)

akta.pro primary industry

Reliability, Safety & Risk Engineering (RAMS/PSM) Consulting (BPAHAIAK)

akta.pro secondary industries

Turnaround & Outage Planning/Management (TAR Coordination) (IMAIACAA), Tools & Platforms Training (Jira, Azure DevOps, MS Project, Smartsheet, etc.) (EDABAHAH)

Keywords

• Mechanized orbital welding
• Pipeline welding services
• Welding integrity management
• Pipe preparation equipment
• Energy pipeline solutions

Headquarters

HQ city

Roissy-en-france

HQ country

France

HQ region

Europe

Offices8 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Marketing or Sales, Infrastructure

Revenue model

1. Welding Services: Full-service welding company offering fully integrated welding solutions for operations on land and at sea. Services include mechanized orbital welding, manual welding, weldability testing, engineering and consulting, training and certifications, and integrity management.
2. Welding Equipment and Technology: Sale and deployment of proprietary welding equipment including Saturnax bug and band welding systems, internal welding clamps, pipe preparation tools, and integrity management solutions. Fleet includes over 500 dual head automatic Saturnax welding bugs, 120 pipe-facing machines, and 130 internal line-up clamps.
3. Training and Certifications: Personnel training, development and certifications including SQA International qualifications in welding, NDT, field joint coating, control engineering, electrical engineering, technical services, mechanics, technicians, operators, electronics in welding, health & safety, QA & QC, leadership, and site management.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels7 records

Core offering

Serimax provides mechanized orbital and manual welding solutions for onshore and offshore energy pipeline infrastructure, deploying welding technicians, engineers, and proprietary specialist equipment (SATURNAX family, SATURNE, EXTERNAX, clamping and pipe preparation tools) directly to client project sites. The company also delivers complementary services including engineering and consulting, weldability testing, integrity management (CLEVERWELD, SCANVISION), laser pipe-end dimensioning, and SQA-approved training and certifications, managing approximately 90 projects per year across 26 locations in over 130 countries.

Product overview

Serimax is a full-service welding company offering integrated welding solutions for onshore, offshore, and subsea environments. The product portfolio centers on the SATURNAX mechanized welding bug family (01, 07, 08, 09, and GTAW variants) for automated orbital welding, complemented by the SATURNE automatic welding system for high-volume trunkline operations and EXTERNAX/MULTINAX for specialized applications. The integrity management suite includes CLEVERWELD (digital traceability), SCANVISION (visual inspection), CLEVERSCAN and BEVELSCAN (pipe-end measurement), while clamping and fit-up solutions comprise INTERNAX, ILUC Carbon Steel/CRA, MAXILUC, and ROXANE. Pipe preparation is supported by PFM beveling and ICBU counter-boring tools. Services span tailored welding solutions, manual welding, engineering/consulting, weldability testing, laser pipe-end dimensioning, and training/certifications.

Differentiator

Problem solved

Functional benefit

Products and services

• SATURNAX 01 Ultra-lightweight, extra flat FCAW (Flux Cored Arc Welding) mechanized welding bug designed to increase welding productivity and encourage welder autonomy. Handles pipe diameters from 8'' to 96'' with minimal clearance down to 261mm, with wireless remote control and pendular oscillation imitating manual welders.
• SATURNAX 07 Mechanized welding bug with robust mechanics, welding process management and integration, easy orbital parameter setting, and arc and weld-pool stability for orbital welding applications.
• SATURNAX 08 Mechanized welding bug variant with stable welding process management and easy orbital parameter setting.
• SATURNAX 09 Bug and band FCAW welding system known for robust mechanics, welding process management and integration, and arc/weld-pool stability.
• SATURNAX 09 GTAW Gas Tungsten Arc Welding (GTAW) variant of Saturnax 09 for enhanced precision welding capabilities.
• SATURNE Original fully-automated orbital welding system operating 8 welding torches simultaneously, designed for trunklines, and holding world records in production.
• EXTERNAX Automatic tie-in solution offering reduced risk through fully-external operations, reduced clamping and welding times, narrow-gap bevel solution, and automated weld parameter traceability.
• MULTINAX Versatile, narrow gap GMAW assembly tool dedicated to 1G pre-fabrication welding, delivering high property standards for all diameters from 6''.
• INTERNAX Internal welding clamp with pipe rerounding capabilities supporting landline projects with up to 8 fully automatic oscillating welding heads for strong and wide internal bead.
• ILUC Carbon Steel Most versatile and reliable internal line-up clamp providing the best solution for welding of all carbon steel materials and fatigue sensitive lines.
• ILUC CRA Internal line-up clamp operating on offshore and onshore projects for pipe diameter from 8'' to above, designed for corrosion resistant alloy materials.
• MAXILUC Extra-strong pneumatic line-up field clamp that facilitates and accelerates spacing, optimizing welding cycle time. Rerounds pipe ends until Out Of Roundness is completely removed.
• ROXANE ILUC fitted with Roxane gas purge module for reliable welding of corrosion resistant alloy (CRA) materials with full oxygen control.
• PFM (Pipe Facing Machine) In-house beveling tool specifically designed to produce narrow gap bevels for high productivity automatic welding, covering diameters from 4'' to above 72''.
• ICBU (Internal Counter-Boring Unit) Internal Counter-Boring Unit high-end system for onshore and offshore applications, meeting stringent client specifications on pipe-end dimensions.
• SCANVISION Digital solution for internal visual inspection measurement that documents project welding DNA, combining visual inspection and laser measurement, with intermediate inspection capabilities, automatic profiling, and calibrated video inspection.
• CLEVERSCAN Accurate and rapid measurement tool for pipe-end dimensions with pipe fit-up and sorting software suitable for pipemills, pipeyards, coating yards, or offshore production sites. Improves weld quality, minimizes fit-up time, increases productivity, optimizes pipe sorting, and fulfils HiLo requirements.
• BEVELSCAN Accurate measurement tool for pipe-end dimensions or bevels with pipe sorting software, suitable for CRA and SCR projects. Optimizes HiLo and minimizes downtimes.
• CLEVERWELD Fully-automated integrity management solution for customizable, fit-for-purpose pipeline production reporting, with full traceability and data storage. Includes NDT, FJC, real-time production tracking, customizable reports, and long-term data storage.
• Tailored Welding Solutions Comprehensive welding management, project delivery, and operational support services tailored to client specifications across onshore, offshore, and subsea energy pipeline projects.
• Manual Welding Development and training of fully qualified, highly skilled welders providing versatility and quality welding services for projects where manual execution is required.
• Engineering & Consulting Largest pool of qualified International Welding Engineers offering R&D partnerships, welding engineering, ECA, owner's engineer support, and welding procedure consulting.
• Weldability Tests & Development Support Welding technology validation, pipe property validation, contractor competitiveness assessment, and third-party neutral assessments for legal disputes.
• Laser Pipe-end Dimensioning Laser-based measurement service for pipe-end dimensions increasing pipe integrity, improving welding productivity, and providing complete traceability.
• Training & Certifications Personnel training, development and certifications including SQA-approved qualifications for welding, NDT, field joint coating, control engineering, electrical engineering, technical services, mechanics, technicians, operators, electronics in welding, health & safety, QA & QC, leadership, and site management.

Quantifiable outcome

• 98% first-weld success rates achieved on-site at quayside in non-factory conditions
• +5 more outcomes

Named customers3 records

Segments6 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature16 records

Partnerships

Six partnerships are on record, tiered minor and core.

• La French FabminorStrategic or Co-development Partner · 1 January 2025Serimax joined La French Fab, the French industrial ecosystem representing French manufacturing companies committed to industry of the future.
• ORE Catapult (Offshore Renewable Energy)coreStrategic or Co-development Partner · 1 March 2024Serimax was selected as one of seven companies for the pioneering Fit For Offshore Renewables (F4OR) programme in north of Scotland and Orkney. Initiative spearheaded by ORE Catapult and supported by £125,000 from West of Orkney Windfarm. This marks a pivotal step for Serimax to establish foothold in offshore wind renewables market.
• West of Orkney WindfarmminorStrategic or Co-development Partner · 1 March 2024Supporting the F4OR programme with £125,000 funding. Serimax aims to establish foothold in offshore wind renewables market through this initiative.
• SQA International (Scottish Qualifications Authority)coreStrategic or Co-development PartnerRenowned Scottish Qualifications Authority SQA International has approved Serimax to deliver qualifications in all countries in which they operate, allowing development of local people skills to SVQ/NVQ level. Covers welding, NDT, field joint coating, control engineering, electrical engineering, technical services, mechanic, technicians, operators, electronics in welding, health & safety, QA & QC, leadership, and site management.
• La Mission Locale SoissonaisminorStrategic or Co-development PartnerCollaboration with La Mission Locale Soissonais and association ERE (Entreprendre en Retz Ensemble) to welcome youngsters to Serimax offices and workshop to provide career guidance and inspiration.
• Association ERE (Entreprendre en Retz Ensemble)minorStrategic or Co-development PartnerCollaboration to guide and encourage youth with career choices through VIP tours of Serimax business.

Scale indicators11 records

Recent moves12 records

Expansion highlights5 records

Direct peers

• CRC-Evans Pipeline International: Closest direct competitor in mechanized pipeline welding and field joint services. Both companies deliver automated welding systems, line-up clamps, and pipeline construction services to oil & gas operators globally.
• Pipeline Technique Ltd: UK-based specialist in pipeline welding, fabrication, and field services for onshore and offshore energy infrastructure. Directly comparable in scope of mechanized welding services, integrity management, and engineering consulting.

Broad incumbents

• Lincoln Electric: Global leader in arc welding solutions, automated joining, and cutting systems. Larger incumbent in welding equipment manufacturing with broader industrial reach; has a documented relationship with Serimax in energy pipeline welding trends.
• ESAB Corporation: Major welding and cutting equipment manufacturer with broad industrial and energy-sector exposure. Competes with Serimax in welding consumables and equipment, though with a much wider product portfolio beyond pipeline specialization.
• Subsea7: Offshore construction and subsea engineering services company that includes pipeline lay, welding, and SURF (subsea, umbilicals, risers, flowlines) work. Larger and more diversified, but overlaps with Serimax in deepwater pipeline welding execution.
• TechnipFMC: Integrated oilfield services and engineering company with subsea, surface, and onshore/offshore pipeline construction capabilities. Operates at a much larger scale and competes for major EPC pipeline projects where Serimax provides welding execution.
• Saipem: Global engineering and construction company with onshore and offshore pipeline welding services for oil & gas, hydrogen, and CCUS. Larger scale and broader scope, but directly comparable in field welding execution.
• McDermott International: Offshore engineering, procurement, construction, and installation (EPCI) company that includes pipeline welding and subsea execution. Overlaps with Serimax in offshore energy infrastructure welding services.

Others

• Fronius International: Welding technology manufacturer offering automated and robotic welding systems, including for pipeline applications. Not a direct pipeline services competitor, but an enabling technology supplier comparable to Serimax's SATURNAX family.
• Vallourec: Former parent company (2010-2025) and world leader in premium tubular solutions for the energy market. The historical ownership and VAM connection relationship made Serimax an integrated part of Vallourec's pipe value chain.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights8 records

Customer concentration

• YouTubeyoutube.com/serimaxgroup
• LinkedInlinkedin.com/company/serimax

Compliance6 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles13 records

Subsidiaries6 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Serimax