XXL Group

What XXL Group does

XXL Group is a privately held French architecture, urban planning, engineering, and construction firm founded in 1996 and headquartered in Saint-Étienne. The group operates through six complementary wholly-owned subsidiaries — XXL Atelier, TAO Architecte, Perspective Building (architecture), XXL CCC (general contracting / contractant général), XXL Green Generation (sustainable real estate promotion), and C² Économie (construction economics) — and runs offices in Saint-Étienne, Lyon, Paris, and Grenoble, employing 28 people.

The firm delivers integrated design-build services across industrial and logistics real estate, tertiary and commercial buildings, public and cultural facilities, healthcare, and residential housing. Core technical capabilities include BIM modeling, 3D visualization, and expertise across French and European sustainability labels (HQE, BBC-Effinergie, RT 2012, RE2020, Passivhaus, BREEAM). Since 2009 the group has held ISO 9001 certification covering budget, schedule, and safety compliance. Its project base spans more than 500 completed projects and over 3.5 million square meters of built area, with named clients including Renault, E.Leclerc, Biocoop, ITM, SYMBIO, Goodman, and various social-housing operators and municipalities.

Revenue is generated through project-based fees on architecture mandates (BASE, EXE, OPC, full MOP), general-contracting turnkey construction delivery, and real estate promotion via XXL Green Generation. The group wins work both through direct enterprise sales and competitive public tenders (appels d'offres), targeting mid-market and enterprise clients in France. No revenue figures are publicly disclosed, and the firm operates independently with no identified external investment, private equity backing, or parent company.

Name

XXL Group

Legal name

XXL Group

Website

https://xxlgroup.fr

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Ownership category

akta.pro rank

Product category

Architecture & Construction Services

NAICS

Nonresidential Building Construction (2362), Architectural Services (541310)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540), Operative Builders (1531)

akta.pro primary industry

Commercial General Contracting (New Build) (IMAFAAAA)

akta.pro secondary industry

Residential Design-Build & Renovation-Integrated Builders (IMAFABAE)

Keywords

• Architecture design services
• General contracting
• Urban planning engineering
• Construction economics
• Sustainable building construction

Headquarters

HQ city

Saint-Étienne

HQ country

France

HQ region

Europe

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Architecture and Design Services: Fees earned for architectural design, urban planning, and engineering services on construction projects. Services include mission types: BASE (base services), EXE (execution), OPC (coordination), and full MOP (public procurement) mandates.
2. General Contracting: Turnkey building construction and rehabilitation services delivered as contractor général, managing all phases of construction delivery.
3. Real Estate Development: Property development and promotion services through XXL Green Generation subsidiary for sustainable construction projects.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels5 records

Core offering

XXL Group is a multi-disciplinary French architecture, urban planning, engineering, and construction firm that delivers design, project management, general contracting (contractant général), construction economics, and sustainable real estate promotion services. The group operates through six complementary subsidiaries serving industrial, logistics, tertiary, public, healthcare, and residential building projects across France.

Product overview

XXL Group is a multi-disciplinary architecture, urban planning, engineering, and construction group comprising six complementary divisions operating as a unified platform with specialized sub-brands. The group offers comprehensive services through XXL Atelier (full-service architecture and BIM), TAO Architecte (architectural design), XXL Green Generation (sustainable construction), XXL CCC (general contracting), C² Économie (construction economics and cost optimization), and Perspective Building (architecture and engineering). The divisions work collaboratively to deliver projects from feasibility studies through construction management, serving sectors including industrial logistics, tertiary/commercial, cultural and public buildings, healthcare, and residential housing.

Differentiator

Problem solved

Functional benefit

Brands

• XXL Atelier: Architecture and urban planning services
• TAO Architecte
• XXL CCC
• XXL Green Generation
• C² Économie
• Perspective Building

Products and services

• XXL Atelier (Architecture Services) Full-service architecture and design offering that delivers architectural plans, CAD/DAO drawings, permit applications, BIM modeling, and construction site management with engineers overseeing delays, costs, and post-delivery service for enterprise and public sector clients.
• TAO Architecte (Architecture Services) Architecture division providing architectural design services for residential, commercial, and public sector projects, operating from the Villeurbanne (Lyon) office.
• XXL CCC (General Contracting) Contractor général (general contracting) service providing comprehensive construction project management and execution as a single accountable party for industrial and commercial building projects.
• XXL Green Generation (Sustainable Real Estate Promotion) Sustainable real estate promotion division developing environmentally conscious building projects, including carbon-neutral residential tourism developments such as the WHITE[carbon] project (6,000 m²).
• C² Économie (Construction Economics) Construction economics division providing cost estimation, material selection recommendations, and cost optimization services across building projects.
• Perspective Building (Architecture Services - Grenoble) Architecture and engineering services division operating from Seyssinet-Pariset (Grenoble), delivering architectural design and engineering services for construction projects in the Grenoble region.

Quantifiable outcome

• ISO 9001 certified since 2009, demonstrating consistent quality management in budget, schedule, and safety compliance.
• +1 more outcomes

Named customers27 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Five partnerships are on record, tiered core, minor and moderate.

• Wilmotte & AssociéscoreStrategic or Co-development PartnerXXL Group acts as associated architect in partnership with Wilmotte & Associés as mandataire for the Campus région du numérique – AGORA project (9,000 m²) in Charbonnières-les-Bains, developed with Bouygues Immobilier for Région AuRA.
• CivitaminorStrategic or Co-development PartnerJoint venture partner for specific projects including the 27 intermediate housing units in Saint-Étienne (2,241 m²) and 33 housing units in Bron (3,312 m²).
• XanaduminorStrategic or Co-development PartnerXXL Atelier as mandataire partnered with Xanadu for the CFA BTP de la Loire project (7,750 m²) for BTP CFA Rhône-Alpes.
• GSE (Contractor)moderateChannel Partner/ Reseller/ DistributorOngoing collaboration with GSE as contractor on logistics platform projects including the Confluence France platform at Mitry-Mory (9,828 m²) and Buchères platform (87,500 m²).
• Confluence FrancemoderateChannel Partner/ Reseller/ DistributorXXL Atelier collaborated with Confluence France and GSE for the design of a new logistics platform at Mitry-Mory (9,828 m², BREEAM Very Good certified).

Scale indicators5 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• GA Smart Building: GA Smart Building is a French design-build firm specializing in industrial, logistics, and office buildings using off-site construction methods. Comparable to XXL Group's logistics and industrial platform work (Biocoop, E.Leclerc, ITM, Renault) with similar turnkey design-build positioning and focus on performance/certifications.
• Architecture-Studio: Architecture-Studio is a major French architecture firm with global operations, active in cultural, urban, residential, and commercial projects. Comparable to XXL Group in architectural scope and French public-sector orientation, but with substantially larger headcount and international footprint.
• Wilmotte & Associés: Wilmotte & Associés is a leading French architecture firm with international reach, covering cultural, residential, commercial, and urban projects. A documented co-architect partner of XXL Group (AGORA campus project), it is directly comparable in offering and target project typology, though significantly larger and more internationally oriented.
• Demathieu Bard Construction: Demathieu Bard is an independent French general contractor operating across building, civil engineering, and real estate development. Comparable to XXL Group's general contracting activity (XXL CCC) and developer activity (XXL Green Generation), particularly in logistics, industrial, and public-sector projects in France.
• AIA Life Designers: AIA Life Designers is a French architecture firm specializing in healthcare, education, housing, and urban planning with integrated engineering capabilities. Comparable to XXL Group in its public-sector orientation, BIM/3D capabilities, and project typology breadth across French regions.
• Groupe-6: Groupe-6 is a French architecture and urban planning firm with integrated engineering capabilities, active in healthcare, education, housing, and urban regeneration. Comparable to XXL Group's architectural and BIM service offering, particularly in public-sector projects across French regions.
• Groupe GCC (Générale de Construction et de Charpente): GCC is a mid-sized French general contractor covering residential, tertiary, healthcare, and industrial projects with regional offices across France. Closely comparable to XXL Group's general contracting model (XXL CCC), particularly in healthcare/senior living and industrial construction segments.
• Patriarche: Patriarche is a French multi-disciplinary architecture, engineering, and general contracting group offering integrated design-build services across residential, commercial, healthcare, and industrial sectors. Closest direct peer to XXL Group: similar integrated architecture + GC model, comparable mid-size scale, and French national footprint.
• Léon Grosse: Léon Grosse is a French general contractor and developer active in residential, tertiary, public, and industrial construction with strong regional presence in Auvergne-Rhône-Alpes (XXL's home region). Comparable to XXL Group in general contracting scope and Rhône-Alpes market focus, though larger scale.

Broad incumbents

• Spie Batignolles: Spie Batignolles is a major French construction group with general contracting, development, and real estate activities across all major French regions and abroad. A broader incumbent competing with XXL CCC for nonresidential and industrial contracts, but operating at much larger scale and across multiple geographies.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• YouTubevimeo.com/xxlgroup
• LinkedInlinkedin.com/company/architecture-xxl-group

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Subsidiaries6 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 XXL Group