What Groupe Cassous does

Groupe Cassous is a family-owned French ETI (Entreprise de Taille Intermédiaire) specializing in BTP — construction and public works — headquartered in Mérignac, Nouvelle-Aquitaine. Founded in 1968 by Henri Cassous with the creation of SOL AQUITAINE (later TEMSOL), the Group has expanded over nearly 60 years and two generations from a public-works drilling/surveys core into four business divisions: Travaux Publics (road construction, earthworks, foundations, networks, sanitation, civil engineering, railway safety), Bâtiment (new construction, renovation, deconstruction, asbestos removal, fine metalwork, all-trades work), Environnement (vegetal and inert waste valorization, recycling platforms, vinicultural effluent treatment), and Immobilier (land development, general contracting, business-park development, residential promotion). The Group operates through 45 wholly-owned commercial subsidiaries that can pool expertise on a single construction site, offering clients a single interlocutor for multi-disciplinary, turnkey delivery across public and private sectors.

The Group's technical capabilities rest on six owned industrial waste-valorization platforms (Ecopôle Bellevue, La Grande Jaugue, Aquitilia, Guyenne Environnement, CTMV, Forbas) with combined capacities of 250 kT/year of inert waste, 55 kT/year of plant waste, 40 kT/year of non-hazardous waste, and 65,000 m3/year of vinicultural matter, alongside proprietary innovations including the SEVE® eco-comparator (Atlantic Route), Sobesol network rehabilitation solutions (SOBEBO), and co-developed carbon-footprint evaluation software with regional university institutes. Construction management is supported by modern software, tablets, and digital modeling tools, and the in-house QERSEM training program (co-developed with CFCTP d'Egletons, Les Compagnons du Devoir and EFIATP) is Qualiopi-certified with a 100% pass rate across four sessions.

Groupe Cassous generates revenue through project-based, quote-negotiated B2B contracts across its four divisions — pricing is not publicly disclosed and varies per project. The Group reported €360M in annual chiffre d'affaires and 1,500 employees, recruiting over 250 CDI hires and 80+ apprentices annually, and serves public-sector collectivités, private enterprises, and individual clients primarily across Nouvelle-Aquitaine with selective national coverage through certain subsidiaries. Distribution is direct via field-sales teams within each subsidiary, supported by a corporate digital presence (LinkedIn, Instagram, Facebook, YouTube) and the recrutement-cassous.com talent portal. The Group operates without external private-equity or venture capital backing and maintains full family ownership.

Name

Groupe Cassous

Legal name

Groupe Cassous SAS

Website

https://groupe-cassous.com

Company type

Private

Founded year

1968

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Groupe Cassous is a family-owned French ETI specializing in BTP across 45 subsidiaries in four divisions — Travaux Publics, Bâtiment, Environnement, and Immobilier — serving public-sector, private-enterprise, and individual clients primarily in Nouvelle-Aquitaine through integrated, turnkey construction and waste-valorization solutions.

Ownership category

akta.pro rank

Product category

Construction and Public Works Services

NAICS

Management of Companies and Enterprises (551), Corporate, Subsidiary, and Regional Managing Offices (551114)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Heavy Construction Other Than Bldg Const - Contractors (1600), Operative Builders (1531), Land Subdividers & Developers (No Cemeteries) (6552)

akta.pro primary industry

Construction Program Management (Multi-site/Portfolio) (IMAFAAAF)

akta.pro secondary industries

Circularity Consulting & Program Management (EPR, Design-for-Circularity, LCA) (EUAIANAH), Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA)

Keywords

• Public works construction
• Building renovation services
• Waste valorization recycling
• Real estate development
• Civil engineering services

Headquarters

HQ city

Mérignac

HQ country

France

HQ region

Europe

Offices7 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Travaux Publics (Public Works): Core revenue stream including route, terrassement, foundations, networks, sanitation, railway safety, and civil engineering projects for public and private clients.
2. Bâtiment (Construction): Construction, renovation, deconstruction, and demolition services including gros œuvre, couverture, étanchéité, métallerie fine, and tous corps d'état (all trades) work.
3. Environnement (Waste Management): Waste collection, sorting, recycling, and valorization services including treatment of BTP waste, green waste, and vinicultural effluents, plus sale of recycled aggregates.
4. Immobilier (Real Estate): Property development including land development (lotisseur), general contractor (contractant général), activity zone development, and residential property promotion.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

Groupe Cassous is a family-owned BTP (construction and public works) group operating 45 subsidiaries across four divisions: Travaux Publics (road construction, earthworks, foundations, networks, sanitation, railway safety), Bâtiment (construction, renovation, deconstruction, demolition, asbestos removal, fine metalwork), Environnement (waste collection, recycling, composting, aggregate sales, eco-responsible landscaping), and Immobilier (land development, general contracting, business park development, residential property promotion). Subsidiaries pool expertise on the same construction site to deliver turnkey multi-disciplinary projects for public and private clients in Nouvelle-Aquitaine.

Product overview

Groupe Cassous is a regional, family-owned ETI (Intermediate-Sized Enterprise) specialized in BTP (Construction and Public Works) operating in Nouvelle-Aquitaine, France. The group operates as a multi-activity structure comprising 45 subsidiaries organized into four core business divisions: Travaux Publics (Public Works), Bâtiment (Construction), Environnement (Environment/Waste Management), and Immobilier (Real Estate). The group offers an integrated, turnkey service model where subsidiaries can combine their expertise on the same construction site. Key subsidiaries include ATLANTIC ROUTE (road construction), TEMSOL (foundation engineering), SOBEBO (network construction), COREN (renovation), BDS (deconstruction), ECOPÔLE BELLEVUE and GUYENNE ENVIRONNEMENT (waste recovery), PROGEFIM (land development), AGC (general contracting), and ANOSTA (residential promotion). The group also operates QERSEM, an internal training program with Qualiopi certification, supporting workforce development across all divisions. With approximately €360M in revenue, 1,500 employees, and 45 commercial companies, Groupe Cassous provides comprehensive BTP solutions leveraging multi-trade synergies for clients in both public and private sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Travaux Publics (Public Works) Core business division offering road construction, earthworks, foundations, drilling, networks, sanitation, water management, railway safety, and civil engineering services for public and private clients in Nouvelle-Aquitaine.
• Bâtiment (Construction) Construction division covering new construction, wood construction, building envelopes, structural work, renovation, fine metalwork, deconstruction and asbestos removal, concrete cutting, and accessibility services for public and private clients.
• Environnement (Environment / Waste Management) Environmental division offering vegetable waste treatment and composting, wood shredding and screening, inert and non-hazardous waste recovery and aggregate sales, wine effluents and sanitation treatment, sustainable green spaces, and nursery services.
• Immobilier (Real Estate) Real estate division combining land developer, general contractor, and real estate promoter services in Gironde, developing residential lots, activity zones, industrial, logistics and tertiary buildings, and small residential buildings.

Quantifiable outcome

• Projects completed faster through coordinated multi-subsidiary approach, reducing client interlocutors and optimizing construction phasing.
• +2 more outcomes

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

Feature4 records

Partnerships

Nine partnerships are on record, tiered core and minor.

• CFCTP d'Egletons (Centre de Formation aux Careers des Travaux Publics)coreStrategic or Co-development PartnerThe Group partners with CFCTP d'Egletons for the development of specialized training modules for its Travaux Publics subsidiaries. The CFCTP is a recognized training institution within the Travaux Publics professional branch. Jointly developed QERSEM training programs have achieved 100% certification success rate.
• Les Compagnons du DevoircoreStrategic or Co-development PartnerThe Group collaborates with Les Compagnons du Devoir for building trades training modules. The organization supports the development of vocational skills within the Group's building subsidiaries.
• EFIATP (École de Formation par l'Apprentissage des Travaux Publics)minorStrategic or Co-development PartnerThe Group participates in professional training for future TP management with EFIATP. Group collaborators have conducted workshops on the role of Chef de Chantier for students in the professional license program Management et Gestion des Organisations, parcours Encadrement de Chantiers de TP.
• Écoles d'ingénieurs, CFA, et établissements universitaires de Nouvelle-AquitainecoreOthersThe Group has developed partnerships with engineering schools, apprenticeship training centers, and universities across Nouvelle-Aquitaine over more than twenty years to attract and train future talent.
• Incubateurs de start-up régionaux et nationauxminorStrategic or Co-development PartnerThe Group is a partner of regional and national startup incubators. It has developed advanced partnerships with selected startups, inviting collaborators to integrate experiments on construction sites and provide feedback.
• Institututions universitaires régionalesminorStrategic or Co-development PartnerThe Group collaborates with regional university institutes to develop software for evaluating and correcting carbon footprint on construction sites and optimizing waste recycling.
• Agences nationales de l'emploi de Nouvelle-AquitaineminorOthersThe Group partners with national employment agencies in Nouvelle-Aquitaine to support recruitment activities.
• Fondation CassouscoreOthersCreated in 2008 under the umbrella of Fondation de France, Fondation Cassous supports small local associations that integrate people distant from employment or youth with difficult paths. Collaborators submit projects for funding.
• Organisations régionales et nationales (environnement)minorStrategic or Co-development PartnerThe Group is a member of regional and national organizations with which it collaborates to implement environmental protection solutions.

Scale indicators14 records

Recent moves5 records

Expansion highlights5 records

Direct peers

• NGE: Independent French BTP group with multi-specialty operations (road works, civil engineering, building, environmental engineering) and a multi-subsidiary model. Most direct comparable to Groupe Cassous in terms of regional ETI structure, multi-trade approach, and focus on public works and concessions.
• Leon Grosse: Independent French construction group specialized in building, civil engineering, and real estate development across regional territories. Comparable independent ETI profile with multi-trade construction and development capabilities.
• Demathieu Bard: Independent French construction group operating across public works, building, and real estate development with regional anchoring. Similar ETI positioning and multi-specialty BTP approach to Groupe Cassous.
• Spie Batignolles: Independent French construction group with multi-specialty operations across public works, building, and real estate, structured around regional entities. Comparable multi-trade BTP model and similar ETI positioning to Groupe Cassous.

Broad incumbents

• EIFFAGE Construction: Major French BTP group with construction, energy, and concessions divisions. Competes with Cassous in public works and building tenders across France, with national scale and PPP/concessions capabilities.
• Eurovia: Vinci subsidiary specializing in road construction, urban development, and waste valorization (including aggregates and recycling). Direct competitor in the same Travaux Publics and Environnement segments as Cassous, with much broader geographic reach.
• Paprec Group: Major French recycling and waste management group operating recycling platforms, sorting centers, and aggregate production. Comparable to Cassous's Environnement division (Guyenne Environnement, Ecopole Bellevue, La Grande Jaugue) but at vastly larger national scale.
• Fayat Group: Family-owned French BTP group (still controlled by the Fayat family) with civil works, building, and construction equipment divisions. Comparable family-controlled structure and multi-business BTP approach, but larger and more diversified.
• Colas: Bouygues subsidiary and global leader in road construction and infrastructure. Operates in similar Travaux Publics categories (roads, earthworks, materials) as Cassous's ATLANTIC ROUTE and PEPERIOT subsidiaries but at vastly larger scale and with international footprint.

Regional players

• Charier: Independent family-owned French BTP group based in western France with public works, environmental services, and real estate operations. Comparable multi-specialty ETI structure, though anchored in Pays de la Loire rather than Nouvelle-Aquitaine.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCRnmzN1a4Kbox4ztCzasFoQ
• Facebookfacebook.com/GroupeCassous
• LinkedInlinkedin.com/company/groupe-cassous/posts/?feedView=all&viewAsMember=true
• Instagraminstagram.com/groupecassous/?hl=fr
• Xx.com/groupecassous

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries37 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 Groupe Cassous