Legendre

What Legendre does

Groupe Legendre is a privately held, family-owned European construction, real estate, energy, and hospitality services group founded in 1946 and headquartered in Saint-Jacques-de-la-Lande near Rennes, France. The group operates through four core business lines: Legendre Construction (building, civil engineering, refurbishment, and steel structure construction via subsidiary OMS), Legendre Immobilier (property development, asset management, urban redevelopment under sub-brands SoLive and Whoo/Whoorks), Legendre Energie (solar installation, energy efficiency via Armorgreen and Ener24 subsidiaries and the Effinside JV with Delta Dore), and Legendre Exploitation (hotel and arena operations). The company also holds interests in innovation ventures including Wave-Op, a joint venture with Geps Techno developing the Dikwe wave-powered breakwater technology.

The business serves enterprise and institutional clients across banking (Crédit Agricole Brie Picardie, Raiffeisen Group), telecommunications (Orange), automotive (PSA/Stellantis), real estate investment (MEAG, Ardian), aerospace (Aéroport Toulouse-Blagnac), and public infrastructure through project-based contracts won via competitive tender and direct negotiation. Underlying technology includes BIM-based project planning, ACT low-carbon cement (delivering up to 55% carbon reduction on Parker & Baker), self-consumption solar installations (15 MW cumulative by 2018), and the Dikwe oscillating-panel breakwater — France's first full-scale wave-powered breakwater demonstrator. The group operates 24 agencies across France, the UK, Jersey, Portugal, Switzerland, and historically West Africa, employing approximately 2,500 staff and generating roughly €1 billion in 2024 turnover.

Legendre generates revenue through four primary streams: construction services (project-based contracts), real estate development (property sales and development fees), energy services (installation contracts and ongoing multi-technical service contracts via Ener24), and facilities management/hospitality (managed services through Legendre Exploitation). Pricing is project-specific, determined through competitive tendering and direct negotiation with public and private clients under multi-year contracts. Customer acquisition is direct enterprise field sales, supplemented by industry-event presence (e.g., Seanergy for wave energy), PR-driven earned media, and LinkedIn-led top-of-funnel activity. The company is currently led by third-generation President Vincent Legendre, with a recently appointed Deputy CEO (Thomas Vandecasteele, November 2025) charged with accelerating international development.

Name

Legendre

Legal name

GROUPE LEGENDRE

Website

https://groupe-legendre.com

Company type

Private

Founded year

1946

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Groupe Legendre is a family-owned French construction, real estate, energy, and hospitality services group serving enterprise and institutional clients across Europe. It operates four divisions (Construction, Immobilier, Energie, Exploitation) across 24 agencies in France, the UK, Jersey, Portugal, and Switzerland, with 2,500 employees and €1B in 2024 revenue.

Ownership category

akta.pro rank

Product category

Construction Services

NAICS

Promoters of Performing Arts, Sports, and Similar Events with Facilities (71131)

SIC

Services-Facilities Support Management Services (8744)

akta.pro primary industry

Hospitality & Entertainment Venue Construction (IMAFACAC)

akta.pro secondary industries

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Specialty & Entertainment Venue Property Management (BPAJAGAO)

Keywords

• Construction services
• Real estate development
• Civil engineering
• Solar energy installation
• Facilities management

Headquarters

HQ city

Rennes

HQ country

France

HQ region

Europe

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Construction Services: General construction, civil engineering, refurbishment, and steel structure services for buildings and infrastructure projects. Revenue generated through project-based contracts with public and private clients.
2. Real Estate Development: Property development from conception to operation of mixed-use, tertiary and residential projects. Revenue from property sales and development fees.
3. Energy Services: Solar installation, maintenance and multi-technical services through Legendre Energie and subsidiaries (Armorgreen, Ener24). Revenue from installation contracts and ongoing service contracts.
4. Facilities Management & Hospitality: Asset management and hotel/hospitality operations through Legendre Exploitation subsidiary.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels4 records

Core offering

Legendre Group delivers integrated construction, real estate development, energy, and exploitation services across France and Europe. Its construction arm covers building construction, civil engineering, refurbishment, and steel structure projects; Legendre Immobilier handles property development from conception through operation; Legendre Energie provides solar installations and multi-technical maintenance; and Legendre Exploitation operates hotels and arenas. The group also pursues renewable energy innovation, notably the Dikwe wave-powered breakwater technology developed through the Wave-Op joint venture.

Product overview

Legendre Group operates as a diversified construction, real estate, energy, and services company with four core divisions: Legendre Construction (building, civil engineering, refurbishment, steel structures), Legendre Immobilier (property development, facilities management, hotel operations, asset management), Legendre Energie (solar installations, renewable energy solutions), and Legendre Exploitation (hotels and arenas operations). The company also holds interests in innovative ventures including Wave-Op for marine wave energy technology (Dikwe project), maintains regional subsidiaries like Armorgreen and Ener24, and operates internationally across the UK, Portugal, Switzerland, and Jersey. The portfolio includes specialized sub-brands such as SoLive (Portugal real estate), Whoo/Whoorks (student housing), and Ingenova (R&D innovation unit).

Differentiator

Problem solved

Functional benefit

Products and services

• Legendre Construction Core construction services including building construction (Bâtiment), civil engineering (Génie Civil), refurbishment (Réhabilitation), steel structure construction (Construction métallique), property development (Développement immobilier), and proximity works for residential, commercial, and infrastructure projects across France and international markets.
• Legendre Immobilier Real estate development division providing property development (Promotion Immobilière), real estate asset management (Gestion d'actifs immobiliers), and urban redevelopment (Réaménagement urbain) for mixed-use, tertiary, and residential projects from conception through operation.
• Legendre Energie Energy and services division providing solar power installations (rooftop and parking canopy systems), energy optimization for natural resource potential, and multi-technical services for buildings. Operates through subsidiaries Armorgreen (solar installations) and Ener24 (multi-technical maintenance across 19 sites in Rennes Métropole).
• Legendre Exploitation Operations management for hotels (Hôtellerie) and arenas/venues, handling hospitality and event venue operations for the group's real estate developments.
• Dikwe (Wave-Op) Wave-Powered Breakwater Technology Oscillating panel technology that converts wave energy into electricity while providing coastal protection for port infrastructure. Developed through Wave-Op joint venture (Legendre + Geps Techno) targeting public port authorities and coastal municipalities in France.

Quantifiable outcome

• Reduced carbon footprint up to 55% with ACT cement on Parker & Baker project
• +2 more outcomes

Named customers9 records

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

17 partnerships are on record, tiered core and minor.

• Geps TechnocoreStrategic or Co-development Partner · 1 January 2020Joint venture Wave-Op developing the Dikwe wave energy technology. Geps Techno provides wave energy expertise, Legendre provides construction and project delivery capabilities. Project located at Boulogne-sur-Mer.
• IfremercoreStrategic or Co-development PartnerFrench marine research institute partnering on Dikwe wave energy project for technical validation and ocean testing.
• TecnibuildcoreStrategic or Co-development PartnerPortuguese civil engineering company in co-development partnership for Antas Build and SoLive brand projects in Portugal. Established joint venture SoLive for Portuguese real estate development.
• Delta DorecoreStrategic or Co-development PartnerJoint venture Effinside created for building energy efficiency solutions. Combines Legendre construction expertise with Delta Dore's smart building technology.
• EnergieSprongminorStrategic or Co-development PartnerInnovation platform for energy renovation. Legendre-led consortium won award in 'insulated roof for collective housing' category.
• VeoliaminorStrategic or Co-development PartnerEnvironmental services partnership for construction waste recycling through TRIVEL joint venture with Envie.
• EnvieminorStrategic or Co-development PartnerPartnership for construction waste triaging and recycling through TRIVEL joint venture with Veolia.
• Bouygues Immobilier (UrbanEra)coreStrategic or Co-development PartnerPartnership for solar panel deployment across eco-district near Geneva. 10,000 m² of photovoltaic panels planned for ecoquartier de l'Etoile.
• Enercoop Pays de la LoirecoreStrategic or Co-development PartnerEnergy cooperative part of consortium for largest collective self-consumption project in France on Île de Nantes.
• For-BzhcoreStrategic or Co-development PartnerHolding company partner for Rennes hotel development with Mama Shelter brand. Joint project for hotel rehabilitation.
• Aire Nouvelle (Equans)coreStrategic or Co-development PartnerCo-promotion partner for low-carbon real estate development including Astella project at Le Mans and Bastide Niel development in Bordeaux.
• AquipierrecoreStrategic or Co-development PartnerCo-promotion partner for Bordeaux Bastide Niel urban development project.
• ESITC CaenminorOthersEngineering school partnership through 'Etude de prix' Chaire for academic collaboration and student development.
• ESITC ParisminorOthersSponsor of 2025 graduating class at construction engineering school.
• EcocemcoreStrategic or Co-development Partner10-year partnership for low-carbon cement innovation. ACT cement used on Parker & Baker project reducing carbon footprint by 55%.
• COLASminorStrategic or Co-development PartnerConstruction consortium partner for Grand Paris Express Line 15 South exploitation center at Vitry-sur-Seine.
• TersenminorStrategic or Co-development PartnerConstruction consortium partner for Grand Paris Express Line 15 South exploitation center at Vitry-sur-Seine.

Scale indicators7 records

Recent moves9 records

Expansion highlights6 records

Broad incumbents

• Bouygues Construction: Construction arm of Bouygues Group, one of France's largest diversified construction and real estate players. Directly comparable as a major French general contractor across commercial, residential, civil works, and energy-efficient building projects.
• VINCI Construction: Construction subsidiary of VINCI, the largest French construction group. Operates across building, civil engineering, and energy infrastructure with global reach — comparable on multi-division integrated delivery but at materially larger scale.
• Eiffage Construction: Construction branch of Eiffage Group, a major French player in construction, energy, and concessions. Comparable on integrated construction and energy services model, with significant infrastructure and renewable energy exposure.

Direct peers

• Spie Batignolles: Independent French construction group with similar size and multi-business model spanning building, civil engineering, real estate, and energy. Closely comparable as a privately held mid-sized French construction platform.
• Demathieu Bard: Family-owned French construction group active in building, civil engineering, and real estate development across France and neighboring markets. Closely matches Legendre's family ownership, regional depth, and diversified offering.
• NGE: Independent French multi-disciplinary construction group covering building, civil engineering, earthworks, and energy infrastructure. Comparable mid-sized privately held French contractor with similar geographic concentration and diversification profile.
• Fayat Group: Family-owned French group operating across construction, civil engineering, and building equipment manufacturing. Comparable ownership profile and integrated construction-to-equipment vertical, though with a stronger industrial base.
• Rabot Dutilleul: Northern France-headquartered construction and real estate developer with regional concentration and integrated development capability. Comparable on geographic positioning in Hauts-de-France and integrated construction/real estate model.
• Nexity: France's largest integrated real estate developer, covering residential, commercial, and services. Comparable as a French real estate development counterparty — also overlaps with Legendre Immobilier's residential and tertiary development business.
• Léon Grosse: Privately held French construction group with multi-region presence and an integrated building, civil works, and real estate development model. Comparable on private ownership, mid-tier scale, and integrated construction-to-development offering.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/groupe-legendre
• Facebookfacebook.com/GroupeLegendre

Compliance5 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries10 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 Legendre