SOLOREM

What SOLOREM does

SOLOREM (Société Lorraine d'Economie Mixte d'Aménagement Urbain) is a French mixed-economy company (société d'économie mixte, SEM) founded in 1960 and headquartered at 1 rue Jacques Villermaux in Nancy, with a regional agency in Saint-Dié-des-Vosges. The company manages urban development, construction, and real estate promotion projects for local and regional public authorities across the Lorraine and broader Grand Est regions of France. Ownership combines 60% public territorial entities — led by Métropole du Grand Nancy (15,612 shares), Ville de Nancy (10,604 shares), and Communauté d'Agglomération de Saint-Dié-des-Vosges (3,750 shares) — with 40% other organisms including CDC Banque des Territoires, banking institutions, and the Meurthe-et-Moselle Chamber of Commerce. The Board is presided over by Mathieu Klein, Mayor of Nancy and President of Métropole du Grand Nancy.

The company operates four core service lines: Construction (Construire) — project management and master contracting for buildings, collective equipment, offices, healthcare/social facilities, and educational establishments; Urban Planning (Aménager) — feasibility studies, implementation, and commercialization with developers and end users; Real Estate Promotion (Activité immobilière) — independent or co-promotion development complemented by the SOLORINVEST (SAS) subsidiary for property investment and portfolio management; and Studies & Project Management Assistance (Etudes & AMO) — legal, administrative, financial, and technical feasibility work for evolving or complex mandates. Its methodology incorporates HQE (Haute Qualité Environnementale) sustainable-building practices, supplemented by ISO 9001 certification (held since 2002, awarded by SGS) and OPQIBI qualification for project management competence.

SOLOREM generates revenue through professional services fees on public mandates (Maîtrise d'Ouvrage Déléguée, conduite d'opérations) and managed real estate activity via SOLORINVEST, with annual business volume of approximately €45 million on a share capital of €9,390,600 and ~30 full-time employees. Pricing is driven by public procurement rules and per-project negotiation rather than standardized list pricing. The company is a member of the Entreprises Publiques Locales (EPL) network and SCET, and is concurrently repositioning under the trade style "SUD LORRAINE INGENIERIE MUTUALISEE PROJETS."

Name

SOLOREM

Legal name

Société Lorraine d'Economie Mixte d'Aménagement Urbain

Website

https://solorem.com

Company type

Private

Founded year

1960

Operating status

Operating

Short description

SOLOREM is a French mixed-economy public-private urban development company founded in 1960 that delivers construction, planning, and real estate promotion services to communes, regional authorities, and public institutions across the Lorraine and Grand Est regions of France.

Ownership category

akta.pro rank

Product category

Urban Development Services

NAICS

Nonresidential Building Construction (2362)

SIC

General Bldg Contractors - Nonresidential Bldgs (1540)

akta.pro primary industry

Self-Performing General Contractors (IMAFAAAI)

Keywords

• Urban development services
• Construction project management
• Public infrastructure development
• Real estate development
• Feasibility studies consulting

Headquarters

HQ city

Nancy

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Maîtrise d'Ouvrage Déléguée / Mandat: Project management and delegation services for public infrastructure construction and urban development projects, acting on behalf of local authorities and public bodies
2. Conduite d'opérations: Operation management services for public construction projects, coordinating various stakeholders and contractors
3. Promotion Immobilière: Real estate development through SOLOREM and its subsidiary SOLORINVEST, including property investment and management

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

SOLOREM provides urban development and construction project management services for public authorities and private enterprises in the Lorraine and Grand Est regions of France. The company delivers four service lines: Construire (master contracting for buildings and public facilities), Aménager (urban planning, feasibility studies, and commercialization), Activité immobilière (real estate promotion through SOLORINVEST subsidiary), and Etudes & AMO (project management assistance with tailored legal, administrative, financial, and technical solutions).

Product overview

SOLOREM is a Société d'Economie Mixte (public-private urban development company) offering a portfolio of urban development and construction management services including construction management (Construire), urban planning and development (Aménager), real estate promotion (Activité immobilière), and project management assistance (Etudes et AMO). The company operates primarily in Lorraine and Grand Est regions of France, supporting municipalities and public entities. Its subsidiary Solorinvest handles real estate investment and property management, enabling complementary investment operations.

Differentiator

Problem solved

Functional benefit

Products and services

• Construire (Construction Master Contracting)

Quantifiable outcome

• Delivered major projects including Institut Jean Lamour (50M€), Pont des Fusillés restructuring (13.2M€), multiple schools and healthcare facilities

Named customers5 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

Feature1 record

Partnerships

Eight partnerships are on record, tiered core and minor.

• BatigèrecoreStrategic or Co-development Partner · 17 October 2019Development partner for conversion of former Villemin Maringer hospital site into 600+ unit residential project with 30% social housing.
• SOLORINVESTcoreStrategic or Co-development PartnerSubsidiary of SOLOREM for property investment and portfolio management. Capital: 7,175,000 €. Partners include CDC (175,000€), Immobilière Rimbaud (70,000€), Franpart (70,000€), BPALC (52,500€). SOLOREM holds 245,000€ in shares. Manages properties including Ateliers du Bras Vert (3.9M€), PAM Invest (2M€), BIOHOME (3.7M€), TOTEM Nancy (5.5M€), and Place de Padoue (8M€).
• SCET (Services, Conseils, Expertises et Territoires)minorStrategic or Co-development PartnerNetwork membership providing access to management tools, training, technical information and experience sharing among public local enterprises and social housing providers.
• EPL Network (Entreprises Publiques Locales)minorStrategic or Co-development PartnerNational network of public local companies with 1,100 members, providing professional expertise sharing and management resources.
• L'Immobilière GeorgescoreStrategic or Co-development PartnerDevelopment partner for the Padova building project at ARTEM campus. Jointly developed 3,000m² office building with SOLOREM.
• Métropole du Grand NancycoreStrategic or Co-development PartnerMajority shareholder (15,612 shares) and key client for urban development projects including ecoquartiers, public infrastructure.
• Ville de NancycoreStrategic or Co-development PartnerFounding shareholder (10,604 shares) and key partner. Initiated SOLOREM creation in 1960.
• Communauté d'Agglomération de Saint-Dié-des-VosgescoreStrategic or Co-development PartnerShareholder (3,750 shares) and regional partner for Saint-Dié operations.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Citallios: Société d'économie mixte (SEM) operating in Hauts-de-Seine with a comparable public-private structure delivering urban development, housing, and construction project management for local authorities. Directly comparable as another French SEM urban development vehicle of similar scale and mandate.
• Seqens: Real estate developer structured as a SEM with public and CDC participation, operating in Île-de-France and surrounding regions. Comparable as a mixed-economy real estate and urban development entity delivering housing and public-purpose projects.
• SEDIA: French SEM dedicated to urban planning and real estate development operations in Bourgogne-Franche-Comté. Directly comparable in business model (public-private mixed economy company), service offering (aménagement, construction, real estate), and customer base (local authorities).
• Norevie: CDC-backed housing development SEM focused on rental housing programs in northern France. Directly comparable as a public-private development entity serving public-sector housing and real estate mandates, with overlapping service lines in real estate promotion.
• SADEV (Société d'Aménagement et de Développement): French SEM d'aménagement undertaking urban renewal and development operations for local collectivities. Comparable SEM structure, public-sector client base, and urban planning / construction management service model.

Broad incumbents

• Eiffage Construction: Major French contractor with extensive public-sector and nonresidential building portfolio. Comparable through overlapping construction management and PPP delivery capabilities, though at much larger national scale.
• Nexity: France's leading integrated real estate developer, active across residential, commercial, and public-sector development. Broad incumbent with overlapping service lines in real estate promotion and urban development, though operating at significantly larger national scale.
• Bouygues Construction: Major French general contractor delivering nonresidential building construction (public facilities, schools, hospitals, offices). Competes with SOLOREM on construction mandates, particularly for larger-scale public infrastructure projects where national contractors are preferred.
• CDC Habitat: France's largest social housing operator, owned by Caisse des Dépôts. Offers overlapping capabilities in social and public-purpose housing development, including through acquisitions of regional SEMs (e.g., IDEVIE, Polylogis). Acts as both peer and potential consolidator for entities like SOLOREM's SOLORINVEST subsidiary.

Others

• Ingerop: French independent engineering and project management consultancy providing urban development, infrastructure, and construction advisory services. Adjacent comparator in technical consultancy space and frequently a competitor for AMO / project management mandates that SOLOREM also pursues.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries1 record

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 SOLOREM