Les Structures GB

What Les Structures GB does

Les Structures GB ltée is a privately held, vertically integrated steel construction company headquartered in Rimouski, Québec, founded in 1978 by Jacques Gaudreault and Jean-Pierre Belzile. The firm delivers end-to-end structural steel services — estimation and pre-construction, engineering and 3D modeling using SDS/2, CNC fabrication, miscellaneous metals, custom welded assemblies, industrial painting, and on-site installation — through internal teams operating from a single manufacturing campus at 105, Montée industrielle, Rimouski.

The business model is project-based enterprise contracting. The company sells integrated engineering-fabrication-installation packages to large industrial clients, with no publicly disclosed pricing and revenue generated through professional services and steel component delivery rather than recurring subscription or product sales. Its go-to-market relies on direct field sales and relationship-based tendering for complex, multi-phase capital projects. Customer concentration is anchored in mining and metals (the largest market), with diversification into oil and gas, pulp and paper, hydroelectric, commercial, multi-unit residential, and institutional construction. Operations span Canadian provinces and project sites across all continents, with the mining sector serving as the lead international driver.

The technology stack centers on SDS/2 for 3D steel structure modeling paired with CNC machining and in-house project management tooling for real-time cost and schedule tracking. The firm holds ISO 9001:2015, CSA W47.1 (Division 1.0), CWB Division 1.0, CISC-ICCA, and CSA W178.2 certifications, and its engineers are registered with the Ordre des ingénieurs du Québec and equivalent provincial bodies. With a 22-person documented leadership bench spanning production, quality, estimation, engineering, finance, HR, and project management, the company is professionally managed and operates as an independent, family-rooted industrial contractor with no disclosed external investors or M&A activity.

Name

Les Structures GB

Legal name

Les Structures GB ltée

Website

https://structuresgb.com

Company type

Private

Founded year

1978

Operating status

Operating

Headcount range

51–100 employees

Short description

Les Structures GB ltée is a Quebec-based, vertically integrated steel construction firm delivering engineering, CNC fabrication, painting, and installation for industrial clients in mining, oil and gas, pulp and paper, and commercial sectors across Canada and internationally.

Ownership category

akta.pro rank

Product category

Structural Steel Construction

NAICS

Fabricated Structural Metal Manufacturing (332312), Plate Work and Fabricated Structural Product Manufacturing (33231), Sheet Metal Work Manufacturing (332322), Prefabricated Metal Building and Component Manufacturing (332311)

SIC

Fabricated Structural Metal Products (3440), Prefabricated Metal Buildings & Components (3448), Sheet Metal Work (3444)

akta.pro primary industry

Structural Steel Fabrication (IMADACAA)

akta.pro secondary industries

Metals & Steel Mill Facility Construction (IMAFADAF), Pulp, Paper & Wood Products Mill Construction (IMAFADAG)

Keywords

• Structural steel fabrication
• Industrial steel construction
• Mining steel structures
• Steel installation services
• 3D steel modeling

Headquarters

HQ city

Rimouski

HQ country

Canada

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Steel Structure Engineering and Preconstruction: Expert services accompanying clients at every stage of steel frame design, from initial budget to detailed engineering.
2. 3D Drawing, Modeling and Project Management: 3D steel structure modeling and technical drawing services using SDS/2, with real-time project tracking capabilities.
3. Steel Fabrication and Painting: State-of-the-art manufacturing facility producing steel structures with industrial painting services for corrosion protection.
4. Structural Steel Installation: Internal installation teams with certified assemblers and experienced supervisors for complex project execution in difficult environments.
5. Metal Work and Fabricated Assemblies: Internal production of metal work components including chutes, silos, hoppers and custom industrial equipment with pre-assembly capabilities.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

Les Structures GB provides vertically integrated structural steel construction services for industrial clients, covering project estimation, engineering and 3D modeling (SDS/2), in-house fabrication using CNC machinery, miscellaneous metals, custom welded assemblies, industrial painting, and on-site installation by certified crews. The company specializes in complex projects for mining, oil and gas, pulp and paper, and general steel construction sectors.

Product overview

Les Structures GB is a vertically integrated steel construction company offering a comprehensive suite of services from initial project estimation and engineering through 3D modeling (SDS/2), fabrication, miscellaneous metals, welded assemblies, industrial painting, and on-site installation. The company operates across multiple sectors including mining, oil and gas, pulp and paper, and general steel construction. All services are delivered through integrated internal operations spanning their Rimouski, Quebec facility, enabling complete quality control and schedule compliance.

Differentiator

Problem solved

Functional benefit

Products and services

• Estimation et Gestion de projet (Project Estimation and Management) Comprehensive project estimation and management services for industrial steel construction clients, including pre-feasibility studies, strategic budgeting, and real-time integrated project tracking to ensure cost, schedule, and transparency compliance.
• Ingénierie et dessin (Engineering and Design) Complete engineering and detailed design services using SDS/2 3D modeling software, covering preliminary studies through detailed engineering with internal drafting capabilities for optimal coordination between design, fabrication, and installation.
• Fabrication (Steel Fabrication) State-of-the-art steel fabrication using CNC machinery and advanced optimization systems, specializing in complex mining equipment including concentrators, crushers, conveyors, and mineral processing installations across Canada and internationally.
• Métaux ouvrée (Miscellaneous Metals) Internally produced miscellaneous metals and metal work providing flexibility for last-minute modifications and specific technical requirements, optimizing costs and ensuring perfect synchronization between main structure fabrication and complementary elements.
• Mécano-Soudé (Welded Assemblies and Custom Industrial Equipment) Complex welded assemblies and custom industrial equipment including chutes, silos, hoppers, and bespoke equipment for mining, pulp and paper, and petrochemical sectors, featuring workshop pre-assembly for quality control and reduced on-site installation time.
• Peinture industrielle (Industrial Painting) Complete industrial painting services including protective coatings and specialized finishes that protect steel structures against corrosion, weathering, and chemical aggression, extending service life and maintaining optimal performance.
• Installation (Structural Steel Installation) Specialized installation teams with certified assemblers and experienced supervisors offering customized installation strategies for complex projects in difficult environments, featuring specialized equipment fleet and solution-oriented approach to minimize downtime.

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Five partnerships are on record, tiered minor and core.

• Association de la construction du Québec (ACQ)minorOthersLes Structures GB is a member of the ACQ, a major construction industry association in Quebec providing networking, advocacy, and professional development resources.
• Canadian Welding Bureau (CWB)coreOthersCertified by CWB in Division 1.0 for welding operations, ensuring compliance with Canadian welding standards and quality certification for steel fabrication.
• Ordre des ingénieurs du QuébeccoreOthersCompany engineers are registered members of the OIQ and various professional associations across Canadian provinces, ensuring licensed engineering services nationwide.
• Chambre de commerceminorOthersActive member of the local Chamber of Commerce for business networking and community engagement.
• Centre de formation professionnelle Mont-Joli-MitisminorStrategic or Co-development PartnerCompany provides scholarships to students enrolled in the welding-assembly program to ensure skilled workforce development for their factory and the broader steel transformation sector.

Scale indicators3 records

Recent moves7 records

Expansion highlights5 records

Broad incumbents

• Nucor Corporation: Largest North American steel producer and structural products manufacturer with significant fabricated steel building systems operations. Comparable as a structural steel competitor with deep resources, though operating at vastly greater scale and vertical integration into raw steelmaking.
• Pomerleau: Major Quebec-based general contractor delivering large institutional, industrial, commercial, and civil projects across Canada. Comparable on industrial and institutional steel/institutional construction, though at much larger scale and broader scope.
• EBC Inc. Quebec-headquartered construction firm executing civil, commercial, industrial, and mining projects across Canada. Comparable for mining-sector construction work and Quebec industrial construction footprint, with broader scope than pure steel.
• ArcelorMittal Long Products Canada: Global integrated steel producer with significant Canadian operations supplying structural steel and fabricated products to construction and industrial customers. Comparable on the steel supply side for industrial construction in Canada.

Direct peers

• Behlen Industries: Canadian manufacturer of prefabricated steel buildings and components serving agricultural, industrial, and commercial markets. Comparable in prefabricated steel building fabrication and structural component manufacturing.
• Canam Group: Quebec-headquartered structural steel fabricator and erector with extensive Canadian operations across buildings, bridges, and industrial projects. Closest comparable peer given shared Canadian base, full vertical integration, and similar industrial-sector exposure.
• Walters Group: Canadian structural steel fabricator and erector with operations across Ontario and the U.S., focused on complex industrial and commercial projects. Highly comparable for vertically integrated steel construction, project execution, and customer-segment mix.
• Cementation Canada: Canadian mining-focused construction and engineering contractor delivering shaft sinking, underground infrastructure, and surface process facilities. Highly comparable on the mining-construction side of GB's portfolio, though services rather than pure steel fabrication.
• Supermétal: Quebec-based structural steel fabricator serving commercial, industrial, and institutional construction across North America. Directly comparable business model: engineered steel fabrication, erection, and project management for large-scale builds.

Others

• Russell Metals: Canadian metals distributor with steel service centers and energy products serving industrial customers. Comparable exposure to Canadian industrial steel demand and mining/O&G customers, though operating in distribution rather than fabrication.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/LesStructuresGB
• LinkedInlinkedin.com/company/structures-gb

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Les Structures GB