GA Smart Building
GA Smart Building is a French developer-builder specializing in industrial off-site construction, serving enterprise corporates, institutional real estate investors, and public developers through a vertically integrated platform of five factories, design engineering, and property management.
- Company typePrivate
- Founded1870
- HeadquartersToulouse, France
- Headcount501–1,000
- GTM typeB2B
- OfferingServices
What GA Smart Building does
GA Smart Building, legally GA SAS and commonly branded Groupe GA, is a French developer-builder specializing in industrialized off-site construction. Founded in the late 19th century (sources cite 1870-1875) and headquartered in Toulouse with Paris offices, the group operates a vertically integrated platform spanning design, manufacturing of prefabricated components, on-site assembly, renovation, and lifecycle property management. Core manufacturing is concentrated in five French factories operated through wholly-owned subsidiaries: Ossabois (3D modular wood construction), PREGA (low-carbon concrete systems), Equilab (amenity equipment), and Paquet Fontaine (carpentry and facades). The engineering stack is anchored by FullBIM, a proprietary 3D digital modeling system, and Galaxy Pilot, an in-house energy-monitoring software that uses sensor data to optimize building performance.
The business model combines developer activity (acquiring land, developing projects via VEFA sale-and-leaseback, and delivering turnkey buildings) with construction services and recurring property management through GA Services. GTM is enterprise field sales targeted at large corporate occupiers (Stellantis, Thales, Airbus, CNES, IDEMIA, Sopra Steria, Orange, Safran), institutional real estate investors (Crédit Agricole Immobilier, Primonial Reim, CDC Habitat, Keys REIM), and public-sector developers (Oppidea, Grand Paris Aménagement, SPLA-IN Noisy Est). Pricing is project-specific and not publicly disclosed. In 2022 the group launched Rooj by GA, its first off-site low-carbon housing brand, and in 2024 created a dedicated Renovation division; in 2025 it announced an expansion of PREGA into public works and civil engineering. The company employs 501-1000 staff, was awarded Deloitte's Best Managed Companies label for four consecutive years through 2024, and received a 2025 investment from Eurazeo.
GA Smart Building firmographics
Firmographics- Name
- GA Smart Building
- Legal name
- GA SAS
- Website
- https://ga.fr
- Company type
- Private
- Founded year
- 1870
- Operating status
- Operating
- Headcount range
- 501–1,000 employees
- Short description
- GA Smart Building is a French developer-builder specializing in industrial off-site construction, serving enterprise corporates, institutional real estate investors, and public developers through a vertically integrated platform of five factories, design engineering, and property management.
- Ownership category
- akta.pro rank
GA Smart Building industry classification
Industry- Product category
- Off-Site Construction & Real Estate Development
- NAICS
- Prefabricated Wood Building Manufacturing (321992), Commercial and Institutional Building Construction (236220), Nonresidential Building Construction (2362), New Housing For-Sale Builders (236117)
- SIC
- Prefabricated Wood Bldgs & Components (2452), General Bldg Contractors - Residential Bldgs (1520)
- akta.pro primary industry
- Residential Modular & Prefabricated Home Construction (IMAFABAF)
- akta.pro secondary industries
- Commissioning, Retro-Commissioning & Controls Tuning (BPABAGAL), Prefabricated Engineered Wood Building Components (Trusses, SIPs, EWP Kits) (IMAMACAJ), Residential Green / High-Performance Home Construction (Net-Zero, Passive House) (IMAFABAH)
Keywords
Where GA Smart Building is headquartered
LocationHeadquarters
- HQ city
- Toulouse
- HQ country
- France
- HQ region
- Europe
Offices4 records
Markets served
GA Smart Building business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Supply Chain, Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Real Estate Development and Construction: GA Smart Building acts as a developer and builder, delivering turnkey construction projects through sale in future state of completion (VEFA) and direct construction contracts. Revenue is generated from the sale of completed buildings to institutional investors and the construction fees for development projects.
- Property Management Services: GA Services division provides tailor-made property management services throughout the building lifecycle to optimize real estate asset performance for clients.
- Off-Site Construction Components: Sale of prefabricated construction components including low-carbon concrete systems (PREGA), wooden modules (Ossabois), and amenity equipment manufactured in Group factories.
Go-to-market motion1 record
Distribution channels4 records
Marketing channels4 records
GA Smart Building product offering
Product offeringCore offering
GA Smart Building is a French developer-builder that designs, manufactures, constructs, and renovates large-scale buildings using industrial off-site construction methods. Prefabricated components (low-carbon concrete from PREGA, 3D modular timber from Ossabois, facades, amenities) are produced in the company's French factories and assembled on-site, enabling 20–30% faster delivery and RE2020-compliant, low-carbon output. The group also operates a property management arm (GA Services) and develops modular housing under the Rooj by GA brand.
Product overview
GA Smart Building operates as a low-carbon off-site construction developer and builder, offering an integrated platform spanning building design, construction, renovation, and property management. The core offering centers on industrial off-site construction methods where structural elements, facades, and amenities are manufactured in the company's French factories and assembled on-site. Key subsidiaries supporting this platform include PREGA (low-carbon concrete systems), Ossabois (modular wood construction), Equilab (amenity equipment), and Paquet Fontaine (carpentry/foundations). Additional products include FullBIM (3D digital modeling), Galaxy Pilot (energy monitoring), Flow by GA (indoor geolocation), and Rooj by GA (off-site housing brand). Services span building conception, construction, renovation via dedicated division, and property management through GA Services.
Differentiator
Problem solved
Functional benefit
Brands
- Ossabois: Pre-fabrication and wooden modular construction subsidiary
- PREGA
- Rooj by GA
- GA Services
- FullBIM
- Galaxy Pilot
Products and services
- Off-Site Building Construction Services Core design-and-build offering for enterprises, institutional investors, and public developers: industrial off-site construction of new-build campuses, offices, industrial facilities, logistics hubs, and mixed-use developments, delivering 20–30% faster timelines versus traditional methods and RE2020-compliant low-carbon output.
- Building Renovation Services Off-site renovation services for existing buildings, using prefabricated components to minimize disruption, improve energy performance, and meet RE2020/E+C- certifications. Includes full renovation of historic buildings such as the CNES headquarters at Place Maurice-Quentin.
- GA Property Management Services (GA Services) Tailor-made property management delivered across the building lifecycle for GA's clients, optimizing real estate asset performance through administration, maintenance, and optimization services.
- FullBIM by GA 3D digital modeling system developed by GA Smart Building that creates a digital avatar of construction projects from structural elements and facades to sanitary modules, integrating design through manufacturing and assembly to building operation.
- Galaxy Pilot AI-driven building energy management software connected to thousands of sensors, learning from employee behavior and weather forecasts to optimize energy consumption in real time.
- Flow by GA Building management application providing indoor geolocation services, occupancy analytics, and optimization of lighting, climate control, and space utilization.
- Rooj by GA Off-site low-carbon housing brand offering industrialized residential construction for buyers, social landlords, and student-residence operators.
- Ossabois Modular Wood Construction Modular wood construction subsidiary acquired in 2018, providing 3D wood modules, timber-frame facades, and sanitary modules as part of GA's off-site platform (e.g., the 100% modular wooden Synapses tower at Paris La Défense and the Eklo Hotel in Marne-La-Vallée).
- PREGA Low-Carbon Concrete Systems Low-carbon off-site concrete construction systems produced by the GA subsidiary PREGA, supplying ultra-low-carbon structural elements and prefabricated concrete for buildings, with recent expansion into public works and civil engineering.
- Equilab Amenity Equipment Subsidiary producing amenity equipment (kitchens, bathrooms, fitted-out modules) integrated into GA Smart Building's industrial off-site platform.
Quantifiable outcome
- 20-30% time saving in construction compared to traditional methods
- +7 more outcomes
Companies that use GA Smart Building
Customer profileNamed customers13 records
Segments4 records
Ideal customer profiles3 records
GA Smart Building technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability3 records
Feature5 records
GA Smart Building partnerships and signals
Strategic signalPartnerships
26 partnerships are on record, tiered supporting, core and flagship.
- Aménagement 77supportingPartnership to develop 27,000 m² Light Industrial business park in Montereau-sur-le-Jard.
- PREGAcoreGA Smart Building subsidiary for over 50 years producing low-carbon off-site concrete construction systems. Evolving and expanding into public works and civil engineering sectors. Cornerstone of the Group's unique off-site industrial platform.
- Immobilière 3FcorePartnership with SPLA-IN Noisy Est for urban transformation of new Noisy-Champs station hub with large-scale off-site project. Sales agreement for Lot A1.1 marks launch of first large-scale off-site project in Noisy Pôle Gare district.
- AG Real Estate FrancecoreLeading major refurbishment of M62 building in Paris 18th arrondissement. AG Real Estate transforming building into contemporary office space while preserving existing structure and enhancing architectural qualities.
- Grand Paris AménagementcorePartnership for first 100% off-site wood-built show homes for housing in Saint-Cyr-l'École. Grand Paris Aménagement launching 60 family homes for first-time buyers using off-site timber construction.
- Pitch ImmoflagshipJoint development consortium for Synapses project - the first 100% modular wooden tower in France at Paris La Défense, Courbevoie. GA and Pitch Immo won the Empreintes tender for innovative, mixed, low-carbon urban projects. Total floor area 8,000 m², 49 metres high, to be completed in 17 months.
- Crédit Agricole Immobilier Corporate et PromotionflagshipJoint developers with GA Smart Building for Stellantis grEEn-campus in Poissy (40,000 m² tertiary spaces). Also partners for Up Group Gardens headquarters in Gennevilliers and La Cartoucherie district development.
- IoT ValleysupportingOpen innovation partnership signed in 2016. Strategic partnership with common position on development of innovative connected solutions for buildings.
- Oppidea (Toulouse Métropole Developer)corePublic developer for Toulouse pursuing partnership with GA Smart Building for strong environmental goals. Partnership for future GA headquarters at Toulouse Aerospace eco-district and La Cartoucherie district development (first off-site district in France).
- NexitycorePart of consortium with GA Smart Building for third phase of La Cartoucherie district in Toulouse - the first off-site district in France with 600 housing units.
- SPLA-IN Noisy EstcoreUrban transformation partnership for Noisy-Champs station hub with Immobilière 3F and GA Smart Building launching first large-scale off-site project.
- In'licorePartnership to scale up off-site construction for residential development. First project in Thiais: 58 affordable housing units built using off-site methods, with shared ambition to massify off-site construction.
- Atelier Alfonso FemiasupportingArchitect/urban planner partner for Synapses project in Courbevoie. Provided architectural and urban integration for the 100% modular wooden tower.
- ChartierDalixsupportingArchitectural firm partner for Ardoines Logistics Hub in Vitry-sur-Seine. Created logistics complex combining architectural quality, tenant needs, and financial equilibrium.
- Espaces Ferroviaires (SNCF Group)coreSNCF Group urban and property subsidiary partnered for 1pulsion project - first tertiary programme of Grand Matabiau Quais d'Oc district in Toulouse. 13,000 m² office complex built in 15 months.
- EuropoliasupportingDevelopment company for Toulouse Métropole's Grand Matabiau Quais d'Oc urban renewal project. Managing development of 1pulsion project with Espaces Ferroviaires and GA Smart Building.
- EnedissupportingPartner for inauguration of B Park building in Balma at Vidailhan eco-district. Grid operator collaboration for office development.
- OssaboiscoreGA Smart Building subsidiary specializing in prefabrication and wooden modular construction. Provides 3D wood module construction solution for off-site projects including La Cartoucherie district and Synapses tower.
- EquilabsupportingGA Smart Building subsidiary providing amenity equipment for the industrial off-site platform. Part of complete construction solution from FullBIM to on-site assembly.
- Paquet FontainesupportingGA Smart Building subsidiary producing carpentry and façade components for the industrial off-site construction platform.
- Rooj by GAsupportingGA Smart Building subsidiary providing first off-site low-carbon housing brand. Dragon Rouge created ROOJ brand to address housing demand with ecological and social emergency solutions.
- Now CoworkingsupportingPremium coworking operator managing broader work community at GA Smart Building headquarters Niwa. Brings expertise in dynamic workspaces with national network of nearly 2,000 coworkers across 400 professions.
- EquinoxsupportingPart of consortium with GA Smart Building and Crédit Agricole Immobilier for Stellantis grEEn-campus development.
- ProgamasupportingPart of developer/investor consortium for Stellantis grEEn-campus in Poissy alongside GA Smart Building, Crédit Agricole Immobilier, and Equinox.
- EquilissupportingPartner for Omega Valbonne project: transformation of former hotel into social student residence with 104 affordable student housing units in Sophia Antipolis.
- UnicilsupportingPartner for Omega Valbonne project announcement alongside Equilis, FTI, and GA Smart Building.
Scale indicators7 records
Recent moves8 records
Expansion highlights7 records
GA Smart Building competitors and assessment
Company assessmentDirect peers
- Bouygues Construction: One of France's largest general contractors and a direct competitor to GA in commercial, industrial, and residential off-site/traditional construction. Bouygues Bâtiment (where GA's MD of Renovation, Gilles de Jouvencel, spent 10 years) competes head-to-head on enterprise and institutional projects across France.
- Vinci Construction: Major French and global construction group operating across building, civil engineering, and property development. Comparable to GA in delivering large-scale enterprise campuses and turnkey construction for institutional clients, with a broader geographic footprint.
- Eiffage Construction: French construction group with strong positions in building, energy, and concessions. Competes with GA on large enterprise projects, public-private developments, and increasingly on low-carbon / off-site construction methods for institutional clients.
- Nexity: France's largest residential developer and a GA partner (La Cartoucherie, Toulouse). Nexity is a directly comparable real-estate developer-builder, particularly in residential, and represents both a partner and a competitor in housing and mixed-use developments.
- Kaufman & Broad: Major French for-sale homebuilder active across new-build residential and mixed-use developments. Comparable to GA's residential ambitions (Rooj by GA, La Cartoucherie) and competes for similar land, permits, and institutional residential investors.
Broad incumbents
- Spie: French multi-technical services group providing electrical, mechanical, and energy services to buildings and infrastructure. Comparable as a building services incumbent serving many of the same enterprise and industrial customers as GA, though focused on services rather than new build.
- Saint-Gobain: Global leader in building materials and solutions, supplying many of the same low-carbon, energy-efficient products used in GA's off-site platform. Adjacent competitor with deep R&D in construction decarbonization and a presence across GA's value chain.
Emerging players
- Algeco: European leader in modular and prefabricated buildings for schools, offices, and healthcare. Comparable to GA's Ossabois wood modular business, with a stronger rental/temporary-space focus rather than permanent off-site construction.
- Implenia: Swiss construction and real estate services group with a stated focus on integrated, industrialized, and sustainable construction methods. Comparable to GA as a European peer pursuing off-site and digital construction at scale, though smaller and more concentrated in Switzerland/Germany.
Regional players
- Skanska: Swedish-headquartered construction and development group with strong sustainability positioning and off-site/modular initiatives. Comparable as a low-carbon, large-project builder serving enterprise and public-sector clients, but operating primarily in Nordic/US rather than France.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
GA Smart Building social profiles
Digital presenceGA Smart Building compliance and trust
Trust signalCompliance18 records
GA Smart Building financial estimates
Financial estimateRevenue estimate
Valuation estimate
GA Smart Building leadership team
Management profileNumber of profiles
Profiles13 records
GA Smart Building subsidiaries and ownership
Company hierarchySubsidiaries4 records
GA Smart Building funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
GA Smart Building M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about GA Smart Building
What does GA Smart Building do?
GA Smart Building is a French developer-builder that designs, manufactures, constructs, and renovates large-scale buildings using industrial off-site construction methods. Prefabricated components (low-carbon concrete from PREGA, 3D modular timber from Ossabois, facades, amenities) are produced in the company's French factories and assembled on-site, enabling 20–30% faster delivery and RE2020-compliant, low-carbon output. The group also operates a property management arm (GA Services) and develops modular housing under the Rooj by GA brand.
Is GA Smart Building a public or private company?
GA Smart Building is a private company. It is classified as private equity controlled and is currently operating.
When was GA Smart Building founded?
GA Smart Building was founded in 1870. It employs 501 to 1,000 people.
Where is GA Smart Building based?
GA Smart Building is headquartered in Toulouse, France, in the Europe region.
How does GA Smart Building make money?
Three revenue lines are on record. Real Estate Development and Construction is the primary driver. The others are property Management Services and off-Site Construction Components.
Who are GA Smart Building's main competitors?
Direct peers on record are Bouygues Construction, Vinci Construction, Eiffage Construction, Nexity and Kaufman & Broad. Broad incumbents are Spie and Saint-Gobain. Emerging players are Algeco and Implenia. Skanska is listed as a regional player.
Does GA Smart Building have an API?
No public API is recorded for GA Smart Building.
What industry is GA Smart Building in?
GA Smart Building's product category is Off-Site Construction & Real Estate Development. Its primary akta.pro industry code is IMAFABAF, Residential Modular & Prefabricated Home Construction, with a secondary code of BPABAGAL, Commissioning, Retro-Commissioning & Controls Tuning. Its NAICS code is 321992 and its SIC code is 2452.