SMIB

What SMIB does

SMIB (Solutions de Montage pour l'Industrie et le Bâtiment) is a French private limited company (SARL) founded in 2015 and headquartered in Saint-Nazaire, Loire-Atlantique. The firm provides on-site metal assembly, mounting, and subcontracting services for industrial and construction clients, deploying teams of certified Monteurs (assemblers), Chaudronniers (boilermakers), and Soudeurs (welders) who hold CACES PEMP mobile elevated work platform licenses and welding qualifications. Its core offerings span on-site assembly of metal and mecano-welded elements, subcontracting work for metal structures and industrial installations, and specialized metalworking services including boilermaking, sheet metal work, locksmithing, metal fabrication, and piping. Through an unspecified partner network, SMIB extends its scope to cover study, fabrication, and on-site assembly under a single delivery model.

The company operates as a project-based professional services subcontractor with quote-based, customized pricing and direct client engagement as its primary go-to-market. Its customers include Chantiers de l'Atlantique (recurring shipyard work in Saint-Nazaire), Nouveau Stade de Lyon (sports infrastructure), naval repair operators in La Rochelle and Les Sables d'Olonne, and Parc ASTERIX in Paris. Active project delivery spans four French regions: Pays de la Loire, Auvergne-Rhône-Alpes, Nouvelle-Aquitaine, and Île-de-France. SMIB employs approximately 33 people and is structured as a founder/management-controlled private SME with no disclosed venture or institutional investment. The firm's digital footprint is minimal—a static informational website published under the SAS CNI entity—with reliance on direct relationships and referrals rather than digital marketing or channel partnerships.

Name

SMIB

Legal name

SARL SMIB

Website

https://smib44.com

Company type

Private

Operating status

Operating

Headcount range

11–50 employees

Short description

SMIB is a French on-site metal assembly and subcontracting firm (SARL) providing certified welders, boilermakers, and assemblers to industrial, construction, naval, and entertainment clients across France.

Ownership category

akta.pro rank

Product category

Industrial Metal Assembly Services

NAICS

Boiler, Tank, and Shipping Container Manufacturing (3324)

SIC

Fabricated Plate Work (Boiler Shops) (3443)

akta.pro primary industry

Welding, Fabrication & Field Machining Services (On-site) (IMAIACAD)

akta.pro secondary industry

Steelwork & Fabrication Facilities (Plate/Section Processing, Welding Lines) (IMAJALAH)

Keywords

• On-site metal assembly
• Industrial welding services
• Structural steel mounting
• Boilermaking services
• Construction metalwork

Headquarters

HQ city

Montoir de Bretagne

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Technology or R&D

Revenue model

1. On-site Assembly Services: Project-based on-site assembly and mounting services for metal elements in industrial and construction sectors. Services include structural steel mounting, metal assembly, industrial equipment installation, and modifications. Revenue generated through direct contracts with industrial clients, construction firms, architects, and engineering offices.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels1 record

Core offering

SMIB (Solutions de Montage pour l'Industrie et le Bâtiment) provides on-site assembly and mounting of metallic and welded-mechanical elements for industrial and construction clients. Services are delivered by qualified teams of assemblers (Monteurs), boilermakers (Chaudronniers), and welders (Soudeurs) holding CACES PEMP and welding certifications, covering structural steel mounting, metalwork, boilermaking, sheet metal, locksmithing, piping, and industrial equipment installation. With partner companies, the offering extends to study, fabrication, and on-site assembly as a complete subcontracted service.

Product overview

SMIB (Solutions de Montage pour l'Industrie et le Batiment) is a service company offering on-site assembly and mounting solutions for the industrial and construction sectors. The company provides a unified portfolio of services centered around metal assembly: on-site mounting (montage sur site), subcontracting (travaux de sous-traitance), and specialized metalworking services including boilermaking (chaudronnerie), sheet metal work (tolerie), locksmithing (serrurerie), metal fabrication (metallerie), and piping (tuyauterie). These services are delivered by qualified teams of assemblers, boilermakers, and welders who perform industrial equipment installation, tooling, and structural modifications at client sites.

Differentiator

Problem solved

Functional benefit

Products and services

• On-site Assembly / Mounting Services (Montage sur site)
• Subcontracting Services (Travaux de sous-traitance)
• Boilermaking, Sheet Metal, Locksmithing, Metalwork, and Piping Services (Chaudronnerie, Tôlerie, Serrurerie, Métallerie, Tuyauterie)

Named customers4 records

Segments3 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

One partnership is on record.

• Partner Companies (unspecified)minorStrategic or Co-development PartnerSMIB works with partner companies to offer comprehensive solutions including study, fabrication, and on-site assembly. These partners enable SMIB to provide a full-service offering from initial design through final installation, extending beyond their core on-site assembly capability.

Scale indicators2 records

Recent moves3 records

Expansion highlights5 records

Broad incumbents

• SNEF: French industrial-services group offering mechanical, welding, and metalwork services to industrial and naval clients. Comparable to SMIB in on-site metal assembly and welding offerings, but operating nationally with much larger headcount and broader service portfolio.
• Mecachrome: French mechanical and metalwork services group serving aerospace, defense, and industrial clients. Overlaps with SMIB in metal fabrication and on-site assembly, but operating at much larger scale and across more diversified end markets.
• Spie Industrie: French arm of Spie SA providing industrial installation, mechanical, and metalwork services. Overlaps with SMIB in on-site assembly for shipyards, refineries, and industrial sites, but as part of a multi-service national platform with significantly greater scale.
• Eiffage Métal: Industrial metalwork division of Eiffage Énergie Systèmes, one of France's largest industrial-services groups. Overlaps with SMIB on boilermaking, sheet metal, and on-site metal assembly for industrial and construction clients, but as part of a broad national portfolio of energy and infrastructure services.
• Cegelec: VINCI Energies subsidiary delivering industrial installation and mechanical services including metalwork and welding to industrial clients. Comparable to SMIB in delivering on-site industrial metalwork but at substantially larger scale and with broader multi-trade capability.

Direct peers

• CMPEA: French boilermaking and industrial metalwork SME active in pressure vessels, sheet metal, and on-site industrial assembly. Closely comparable to SMIB in service mix and small-to-mid scale, serving similar industrial and shipyard-adjacent customers in France.
• Baudin Chateauneuf: French metal construction, fabrication, and on-site assembly specialist serving industrial and building clients. Closely comparable to SMIB in core metalwork, boilermaking, and structural assembly services, but at materially larger scale and broader geographic reach.

Regional players

• Sobeca: French infrastructure metalwork and assembly provider focused on electrical networks and urban infrastructure. Comparable to SMIB in on-site metal assembly for construction and infrastructure projects, with strong French regional coverage but different end-market mix.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks6 records

Key highlights5 records

Customer concentration

• LinkedInlinkedin.com/company/smib44

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

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 SMIB