What SemBreizh does

SemBreizh is a French Société d'Économie Mixte (SEM) — a semi-public limited company combining public and private shareholders — operating as a territorial development agency across the Brittany region. Founded in 1957 and headquartered in Cesson-Sévigné with a network of 5 agencies covering all 4 Breton departments (Côtes d'Armor, Finistère, Ille-et-Vilaine, Morbihan), the company serves municipalities, intermunicipal communities (EPCI), the Brittany Region, and Breton businesses as a Business-to-Government (B2G) project developer. SemBreizh positions itself as a one-stop "boîte à outils" (toolbox) for territorial development, with core service lines spanning urban planning studies, construction and rehabilitation (educational facilities, housing, commercial real estate), renewable energy development, and port/industrial infrastructure.

The company generates revenue through professional services (project management mandates, feasibility studies, assistance to public authorities) and transaction-based concession d'aménagement fees, under which SemBreizh acquires land, pilots administrative and financial operations, manages construction, and commercializes developed properties to private end-users. Pricing is project-by-project and negotiated via public procurement or concession frameworks rather than publicly disclosed. A differentiated dimension of the business model is the orchestration of affiliated investment vehicles — BreizhImmo for business real estate lease-to-own financing, BreizhEnergie for renewable energy project development, and BreizhCité for public-private urban revitalization — which provide integrated financing capabilities that pure consultancies cannot replicate.

SemBreizh does not operate proprietary technology platforms; its core competence is project development expertise, public-private partnership structuring, and local institutional relationships rather than software or technology products. Notable recent project deliveries include the €35M Lycée Mona Ozouf in Ploërmel (2023) and the €22M Lycée Freyssinet workshops in Saint-Brieuc (2025), alongside an active renewable energy pipeline through BreizhEnergie covering wind farms at Bégawatts, Énergies Glazik, Landiset, and Les Moulins de Rosvel. The company is governed under French SEM law with registered capital of €15.1M and operates without external venture or private equity ownership disclosed.

Name

SemBreizh

Legal name

SemBreizh

Website

https://sembreizh.fr

Company type

Private

Founded year

1957

Operating status

Operating

Headcount range

51–100 employees

Short description

SemBreizh is a French semi-public development company (SEM) providing urban planning, construction, and renewable energy project development services to local governments and businesses across the Brittany region, operating through 5 agencies covering all 4 Breton departments.

Ownership category

akta.pro rank

Headquarters

HQ city

Cesson-sévigné

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Urban Development and Planning Services: SemBreizh generates revenue through project development mandates, concession agreements, and assistance to public authorities for urban planning, construction, and energy transition projects across Brittany.
2. Concession d'Aménagement: As a concessionnaire, SemBreizh acquires land, pilots administrative/juridical/financial operations, manages construction projects, and commercializes developed land and properties to private developers and businesses.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

SemBreizh is a Société d'Économie Mixte (SEM) providing territorial development, urban planning, construction, and energy transition services across the Brittany region in France. The company acts as a project developer and concessionnaire, acquiring land, managing administrative and financial operations, piloting construction projects, and commercializing developed properties for municipalities, intermunicipal communities, and the Brittany Region. It also develops renewable energy projects through its subsidiary BreizhÉnergie and operates investment vehicles such as BreizhImmo for business real estate and BreizhCité for urban revitalization.

Product overview

SemBreizh operates as a Société d'économie mixte (SEM) providing urban development, construction, and energy transition services across Brittany. The company offers a comprehensive portfolio of territory development services including urban planning studies, construction project management, renewable energy development, and property investment solutions. Key offerings include the BreizhImmo investment vehicle for business real estate, the BreizhCité public-private partnership structure for complex revitalization projects, and specific commercial developments such as Les Ateliers d'Izé business village and La Capsule 2.0 mixed-use projects. The company operates through 5 agencies covering the 4 Breton departments, serving local governments and businesses.

Differentiator

Problem solved

Functional benefit

Brands

• BreizhCité: Public-private urban revitalization vehicle initiated by Region Bretagne, associating SemBreizh, EPF Bretagne, Banque des Territoires, Crédit Mutuel Arkéa, Banque Populaire Grand Ouest, and Caisse d'Epargne Bretagne Pays de Loire, for housing and commerce projects in Breton town centers.
• BreizhÉnergie / BreizhEnergie

Products and services

• Urban Development Services End-to-end urban and land development services for local governments and businesses across Brittany, including project management, feasibility studies, and territory activation mandates.
• Construction and Rehabilitation Services Construction, rehabilitation, and transformation services for buildings including schools, healthcare facilities, housing, and commercial spaces across Brittany.
• Energy Development Services Renewable energy project development services including wind farms, solar/photovoltaic installations, and biogas projects to support energy transition in Brittany.
• Territory Planning Services Land use planning and urban development studies for town centers, ports, and economic zones across the four Breton departments.
• Les Ateliers d'Izé Business village development project in Val-d'Izé comprising 15 artisanal cells ranging from 160 to 435 m² (total 7,784 m²), currently in commercialization phase with planned delivery in Q3 2027.
• La Capsule 2.0 Mixed-use development in La Forest-Landerneau featuring 4 T3 apartments and a 260 m² restaurant, with ground-breaking in May 2026 and planned delivery in spring 2027.
• BreizhImmo Real estate investment vehicle initiated by the Brittany Region, providing long-term leasing arrangements (with ownership transfer at lease end) for businesses acquiring or building premises, mobilized by SemBreizh on development projects.
• BreizhCité Public-private partnership structure associating SemBreizh, EPF Bretagne, Banque des Territoires, Crédit Mutuel Arkéa, Banque Populaire Grand Ouest, and Caisse d'Epargne to carry complex town-center revitalization projects combining housing and commerce.

Quantifiable outcome

• 600+ housing units to be produced through Landerneau urban renewal project
• +2 more outcomes

Named customers6 records

Segments1 record

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

Four partnerships are on record, tiered major and core.

• Etablissement Public Foncier de Bretagne (EPF)majorStrategic or Co-development Partner · 6 May 2026EPF Bretagne preempts identified land on behalf of local communities until operators and project outlines are defined. Partner in BreizhCité structure for revitalizing town centers and brownfield sites.
• BreizhCitécoreStrategic or Co-development PartnerBreizhCité is a public-private investment vehicle initiated by the Brittany Region and managed by SemBreizh. It associates multiple public and private partners including EPF Bretagne, Banque des Territoires, Crédit Mutuel Arkéa, Banque Populaire Grand Ouest, and Caisse d'Epargne Bretagne Pays de Loire. BreizhCité enables complex revitalization projects combining housing and commerce/services that would not proceed under traditional private investment models.
• BreizhImmocoreStrategic or Co-development PartnerBreizhImmo is an investment vehicle initiated by the Brittany Region dedicated to business real estate development. SemBreizh mobilizes BreizhImmo to provide long-term lease financing for companies acquiring or building premises, with ownership transfer at lease end. This enables companies to focus resources on business development rather than real estate.
• BreizhEnergiecoreStrategic or Co-development PartnerBreizhEnergie is a subsidiary focused on renewable energy project development across Brittany. SemBreizh provides technical, legal, and financial expertise to BreizhEnergie's renewable energy projects including wind farms, solar installations, and biogas facilities.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Others

• SCET: Société de Conseil pour l'Aménagement et le Développement, a Caisse des Dépôts subsidiary providing consulting and operational support to French local authorities and SEMs. Comparable to SemBreizh as a territorial development services provider for French local government, though functioning as a consultancy rather than a developer.
• Citadia: French urban planning and territorial development consultancy working with local authorities on planning studies, urban renewal strategies, and sustainable development. Comparable to SemBreizh on the urban planning and feasibility study dimension of territorial development, though operating as an advisory firm rather than a project developer.

Broad incumbents

• Nexity: France's largest private real estate developer, active across residential, commercial, and urban regeneration projects with growing public-sector exposure. Comparable to SemBreizh on housing, urban renewal, and concession-based development, though operating at national scale and with a private (rather than SEM) structure.
• Icade: French real estate developer and subsidiary of Caisse des Dépôts, active in commercial property, housing, and public-interest real estate. Comparable to SemBreizh through public-sector real estate development activity, although Icade operates nationally and at significantly greater scale.
• Eiffage Construction: Major French construction group with significant public-sector and territorial development activity through its real estate development arm (Eiffage Immobilier). Comparable to SemBreizh on construction and project management of public-interest buildings (schools, healthcare, housing), though at substantially larger scale.
• Bouygues Bâtiment: Construction arm of Bouygues Group with extensive public-sector work in education, healthcare, and infrastructure across France. Comparable to SemBreizh on construction and rehabilitation of non-residential public buildings (notably SemBreizh's Lycée Mona Ozouf and Lycée Freyssinet projects), though at much larger scale.

Direct peers

• SADEV: Société d'Aménagement et de Développement de l'Eure, a SEM operating in Normandy with a similar territorial development, urban renewal, and economic zone mandate. Closest direct peer to SemBreizh in terms of legal structure (SEM), activity mix (urban development, housing, economic zones), and B2G sales motion.
• SERL: Société d'Étude et de Réalisation Lyonnaise, a SEM active in urban planning, economic zone development, and territorial projects in the Lyon metropolitan area. Directly comparable to SemBreizh as another French SEM with a regional B2G development mandate and integrated project execution model.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sembreizh
• Xx.com/sembreizh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 SemBreizh