What MAS SA does

MAS BTP is an independent French construction and public works group headquartered in Pau (Nouvelle Aquitaine), founded in 1962. The group operates as a general contractor (entreprise générale / mandataire in design-build consortia) delivering public-sector infrastructure — schools, colleges, hospitals, sports facilities, transport infrastructure — and private industrial and commercial buildings across Nouvelle Aquitaine, Occitanie, and Auvergne-Rhône-Alpes, with a Swiss subsidiary (ARN, Wuthrich & Frigerio SA, Carouge). Group revenue stood at €122M HT (MAS BTP standalone €64M HT) with 1,300+ completed projects over its history.

The group's core technology and service footprint spans reinforced concrete structural work, civil engineering, demolition, waterproofing, metal/wood roofing, road works (VRD), and specialist second-œuvre trades. Vertical integration is delivered through wholly-owned subsidiaries: EEE (electrical, est. 1977), SANICLIM (HVAC/plumbing, est. 1977), Les Peintures d'Aquitaine (painting), MONTESSUIT (civil engineering, Haute-Savoie/Savoie/Ain, est. 1889, integrated into the group in the 1970s), Maisons LARA (individual house construction in Gironde/Poitou-Charente), MAS Project Immo (real estate development), and the Swiss subsidiary. Operational differentiators include a QSSE management system with zero-accident ambition, structured waste sorting, deployment of low-carbon concrete formulations (notably the first low-carbon concrete school in Occitanie), and integrated design-build project management.

Commercially, MAS BTP pursues an enterprise field-sales GTM: revenue is earned project-by-project via competitive public tendering (marchés publics) with regional, departmental, and municipal authorities, and via direct negotiation with private clients such as TotalEnergies, Airbus, Enedis, ENGIE Solutions, and CHU de Toulouse. The group is family-led (President Brigitte Ganier), privately held with no external funding rounds, and diversified across territory and customer segment, with notable recent expansion into energy-renovation of occupied buildings via a new Toulouse-based Rehabilitation profit centre opened in 2024 under Director Guillaume Dejoie.

Name

MAS SA

Legal name

MAS BTP

Website

https://mas-btp.com

Company type

Private

Founded year

1962

Operating status

Operating

Short description

MAS BTP is an independent French general construction and public works group headquartered in Pau, founded in 1962, operating through seven regional agencies across Nouvelle Aquitaine, Occitanie, and Auvergne-Rhône-Alpes, plus a Swiss subsidiary. It serves French public-sector clients via competitive tenders and private industrial accounts through design-build projects, with €122M group revenue.

Ownership category

akta.pro rank

Headquarters

HQ city

Pau

HQ country

France

HQ region

Europe

Offices10 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Supply Chain, Operations, Infrastructure, Marketing or Sales

Revenue model

1. General Construction Contracts: MAS BTP generates the majority of its revenue through general construction contracts (marchés de travaux) as a prime contractor (entreprise générale/mandataire) delivering public and private construction projects. Revenue is project-based, earned through fixed-price contracts with public sector clients (regions, departments, municipalities) and private clients (industrials, healthcare). The company acts as lead contractor in design-build (conception-réalisation) consortia, managing multiple specialist lots.
2. Specialist Trade Contracting: Subsidiary entities (EEE for electrical, SANICLIM for HVAC/plumbing, Les Peintures d'Aquitaine for painting) generate revenue through specialist trade contracts both within MAS BTP-led projects and independently with external general contractors.
3. Real Estate Development: MAS Project Immo (MPI) acts as a property developer (promoteur immobilier), developing real estate operations by leveraging the group's construction capabilities across the MAS entities.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

MAS BTP is a French general construction and public works company acting as prime contractor (entreprise générale/mandataire) for public and private construction projects. Core deliverables include structural works (reinforced concrete), demolition, waterproofing, metal/wood roofing, road works (VRD), and specialist second-œuvre trades. The group additionally delivers electrical installation (EEE), HVAC/plumbing (SANICLIM), painting (Les Peintures d'Aquitaine), civil engineering (MONTESSUIT), individual home construction (Maisons LARA), and real estate development (MAS Project Immo).

Product overview

MAS BTP is an independent construction and public works company founded in 1962, operating as a group of companies with multiple specialized subsidiaries. The group offers a comprehensive range of construction services through its core company MAS BTP along with specialized subsidiaries including: EEE (electrical work), SANICLIM (HVAC and plumbing), Maisons Lara (residential home construction), MONTESSUIT (civil engineering and building in eastern France), MAS Project Immo (real estate development), Les Peintures d'Aquitaine (painting), and a Swiss subsidiary. The group operates across metropolitan France, particularly in Nouvelle Aquitaine, Occitanie, and Auvergne Rhône-Alpes regions, with key figures of €64M turnover for MAS BTP and €122M for the group.

Differentiator

Problem solved

Functional benefit

Products and services

• MAS BTP - General Construction and Public Works Contracting Full-service general contracting for schools, colleges, hospitals, sports facilities, cultural venues, administrative buildings, and civil engineering works (bridges, viaducts, road works). Includes reinforced concrete structural work, demolition, waterproofing, metal/wood roofing, and VRD (voirie et réseaux divers). Offered to local and regional authorities, hospitals, and industrial clients through public tenders and direct negotiations.
• Entreprise Equipement Electrique (EEE) - Electrical Installation Services Electrical contracting for residential and commercial buildings, including strong and weak current installations (TV, intercom, telephone, IT, video surveillance, intrusion detection), fire detection, and home automation (domotique). Sold to public and private sector construction clients as part of group projects and independently to external general contractors.
• SANICLIM - HVAC and Plumbing Installation Heating, plumbing, ventilation, and air conditioning (HVAC) installation services for residential, commercial, and industrial buildings in southwestern France. Provided to public and private sector clients within MAS BTP projects and independently to external clients.
• Maisons LARA - Individual Home Construction Turnkey individual house construction with full project management from land acquisition to handover, operating across Gironde and Poitou-Charente regions with multiple agency offices (Bordeaux, Niort, Royan, Rochefort, La Rochelle, Libourne, La Teste-de-Buch, Mérignac). Sold to individual homebuyers; one of the leaders in individual house construction in the Gironde area.
• MONTESSUIT - Civil Engineering and Building (Haute-Savoie, Savoie, Ain) Civil engineering (wastewater treatment plants, reservoirs, pumping stations, recycling centers) and building construction (sports complexes, schools, town halls, cultural centres, housing) across the Haute-Savoie, Savoie, and Ain departments of eastern France. Sold to public authorities and private clients.
• MAS Project Immo (MPI) - Real Estate Development Real estate development (promotion immobilière) leveraging the group's integrated construction capabilities (general contracting, finishing trades). Develops real estate operations for sale or investment through the group's vertical construction capacity.
• Les Peintures d'Aquitaine - Painting Services Painting and finishing services based in Bayonne, delivered to public and private construction clients as part of group projects and independently.
• ARN, Wuthrich & Frigerio SA - Swiss Construction Operations Construction services delivered in Switzerland through the group's Swiss subsidiary based in Carouge, serving Swiss public and private clients with general construction capabilities.

Quantifiable outcome

• €64M standalone revenue / €122M group revenue
• +4 more outcomes

Named customers13 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

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• ENGIE SolutionscoreStrategic or Co-development Partner · 15 July 2025ENGIE Solutions serves as delegated project owner (maître d'ouvrage délégué) for the biomass heating plant project at Pessac, in partnership with Méribel Pharma Solutions as the end client and MAS BTP as the general contractor. ENGIE Solutions is a major energy services company and a long-term infrastructure partner.
• 5 ArchitecturecoreStrategic or Co-development Partner · 15 July 20255 Architecture serves as the project architect (maître d'œuvre) for the Pessac biomass heating plant, working alongside MAS BTP as general contractor.
• Méribel Pharma SolutionscoreOthersEnd client (maître d'ouvrage) for the Pessac biomass heating plant project, for which MAS BTP serves as the general contractor executing foundations, structural work, VRD, waterproofing, and metal cladding.
• DEMATHIEU BARDcoreStrategic or Co-development PartnerDEMATHIEU BARD serves as the consortium lead (mandataire) for the Toulouse Metro Connexion Ligne B project. MAS BTP participates as a partner in the consortium alongside ETPO and MATIERE.
• Groupe ETPOminorStrategic or Co-development PartnerConstruction partner within the consortium delivering the Toulouse Metro Connexion Ligne B viaduct project.
• MATIEREminorStrategic or Co-development PartnerInfrastructure partner within the consortium delivering the Toulouse Metro Connexion Ligne B viaduct project.
• APC ArchitectescoreStrategic or Co-development PartnerLead architect (architecte mandataire) for the Hôpital Psychiatrique Purpan project, working in partnership with MAS BTP as mandataire in design-build mode.
• EGIS Bâtiments Sud OuestminorStrategic or Co-development PartnerEngineering consultancy (BET) for the Hôpital Psychiatrique Purpan design-build project.
• ECONETminorStrategic or Co-development PartnerECONET collaborated with MAS BTP on a water treatment project for washing concrete equipment (eaux usées du lavage du matériel béton), demonstrating a sustainability-focused partnership.

Scale indicators5 records

Recent moves8 records

Expansion highlights7 records

Direct peers

• ETPO: French construction firm partnering with MAS BTP in the Toulouse Métro Connexion Ligne B consortium; comparable as a mid-sized regional contractor with civil engineering and building capabilities.
• GCC (Générale de Construction et de Construction): Mid-sized French construction group delivering general contracting, rehabilitation, and public-infrastructure projects across regional France — comparable in size, trade mix, and customer base to MAS BTP.
• Demathieu Bard: Independent French construction group serving as consortium mandataire with MAS BTP on Toulouse Métro Connexion Ligne B; comparable in size, multi-trade capabilities, and regional public-infrastructure focus.
• Spie Batignolles: Independent French general contractor and construction group operating regionally across multiple trades, with comparable revenue scale and a similar profile of public-sector and private construction contracts in France.
• Léon Grosse: Family-owned French construction group with multi-trade capabilities (structural, finishing, civil works) serving public and private clients across French regions — directly comparable in ownership profile and project mix to MAS BTP.

Broad incumbents

• Fayat Bâtiment: Building division of the family-owned Fayat group, covering general construction, structural, and finishing works across France; comparable in ownership type and broad construction portfolio though operating at larger scale.
• NGE (Nouvelles Générations d'Entrepreneurs): Independent French multi-specialist construction group active in earthworks, civil engineering, and building, frequently partnering or competing on regional public tenders comparable to those pursued by MAS BTP.
• Eiffage Construction: National construction arm of Eiffage, active on public infrastructure, healthcare, and educational projects similar to MAS BTP's portfolio but with national reach and significantly greater resources.
• VINCI Construction France: Large national construction operator competing for the same public-sector tenders as MAS BTP, including civil engineering and nonresidential buildings across all French regions.
• Bouygues Bâtiment France: National French construction subsidiary of Bouygues, competing with MAS BTP on the same public tenders (schools, hospitals, transport infrastructure) but at materially larger scale and balance sheet.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/mas-btp

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries7 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 MAS SA