Semna,

What Semna, does

Semna (Société d'Economie Mixte de la Ville de Nanterre) is a mixed-economy municipal services and urban development company founded in 2004, headquartered at 13 rue du Vieux Pont, Nanterre, France. It is 70% owned by the Ville de Nanterre with co-shareholders Caisse des Dépôts (15%), Caisse d'Epargne IDF Paris (8%), Logirep (5%), and minor stakes held by Nanterre Coop Habitat, Crédit Coopératif, and Chambre des Métiers 92. With 18 employees, Semna operates three core service lines: (1) parking management across 14 underground facilities with 5,801 spaces, run on a centralized technical management system with 24/7 video surveillance and ISO 9001/ISO 14001 certifications by Bureau Véritas; (2) urban development concessions executed through its subsidiary SPLNA (Société Publique Locale Nanterre Aménagement, 99% city-owned), including ZAC des Papèteries de la Seine, ZAC du Chemin de l'Ile, Parc Sud, Petit Nanterre, Les Guilleraies, and Langevin; and (3) community facilities including Cinéma Les Lumières (4 screens, 632 seats, open 365 days/year), Espace Chevreul event venue (1,175 events/year), and Cité Artisanale (7 lots, ~2,500 m²).

The company generates revenue through a mix of parking hourly fees (€0.40-€19.50) and recurring monthly subscriptions (€36-€130), cinema ticket sales (€5-€8 per session plus concession), transaction-based event venue rentals (starting at €396), artisan workshop leasehold fees, and development fees / concession income from urban renewal projects. Distribution is direct: on-site payments, an online booking portal (booking-semna.axigap.com), a dedicated cinema ticketing site, and a small social media presence. Customers include the Ville de Nanterre as primary municipal client, residents and commuters, local event organizers, and large enterprise tenants in developed districts (Manpower, BNP Paribas Assurances). The business model is structurally tied to a single municipality and its public-private partnership framework, with no disclosed geographic expansion beyond Nanterre.

Name

Semna,

Legal name

SEMNA – Société d'Economie Mixte de la Ville de Nanterre

Website

https://semna.fr

Company type

Private

Founded year

2004

Operating status

Operating

Headcount range

11–50 employees

Short description

Semna is a mixed-economy municipal services company 70% owned by the Ville de Nanterre, operating 14 underground parking facilities (5,801 spaces), a 4-screen cinema, an event venue, and urban development concessions through its subsidiary SPLNA. It serves the residents, commuters, and event organizers of Nanterre, France.

Ownership category

akta.pro rank

Product category

Municipal Services and Urban Development

NAICS

Automotive Equipment Rental and Leasing (5321), Landscape Architectural Services (54132)

SIC

Services-Equipment Rental & Leasing, Nec (7359)

akta.pro primary industry

Curbside, Loading Zone & TNC/Rideshare Management (BPABAKAG)

akta.pro secondary industry

Event Rentals (Tents, Furniture, A/V, Decor) (HSACAAAG)

Keywords

• Municipal parking operations
• Urban development concessions
• Public cinema operations
• Event venue management
• Artisan workshop management

Headquarters

HQ city

Nanterre

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Parking Operations and Management: Management and exploitation of 14 underground parking facilities representing 5,801 parking spaces for the City of Nanterre and private entities. Revenue generated through hourly parking fees and monthly subscriptions.
2. Cinema Management (Les Lumières): Programming and management of municipal cinema complex with 4 screens and 632 seats. Revenue from ticket sales (€5-€8 per screening) and concessions.
3. Event Space Rental (Espace Chevreul): Exploitation and management of multipurpose event complex with five rooms accommodating 20 to 1,800 people. Revenue from venue rentals starting at €396 and ancillary services (catering, security, audiovisual equipment).
4. Artisan Workshop Management (Cité Artisanale): Management of artisan workshop facility with 7 lots totaling approximately 2,500 m² since March 14, 1990.

Pricing tiers

Distribution channels4 records

Marketing channels4 records

Core offering

Semna is a mixed-economy company (société d'économie mixte) for the City of Nanterre, France, that operates 14 underground parking facilities providing 5,801 spaces, runs the 4-screen Cinéma Les Lumières (632 seats), manages the multipurpose Espace Chevreul event venue, oversees the Cité Artisanale workshop complex, and executes urban development concessions through its subsidiary SPLNA. It is majority-owned by the City of Nanterre (70%) and holds ISO 9001:2004 and ISO 14001:2015 certifications.

Product overview

SEMNA (Société d'Economie Mixte de la Ville de Nanterre) operates as a mixed-economy urban development and municipal services company. Its portfolio comprises three main service lines: (1) Parking Management Services operating 14 underground parking facilities with 5,801 spaces featuring 24/7 surveillance and centralized technical management; (2) Urban Development Projects executed through its subsidiary SPLNA, including ZAC des Papèteries de la Seine (125,800 m² tertiary campus), ZAC du Chemin de l'Ile (urban renewal concession), and several ANRU/NPNRU social housing district renewal projects (Parc Sud, Petit Nanterre, Les Guilleraies, Langevin); and (3) Community Services including Cinéma Les Lumières (4-screen cinema, 632 seats), Espace Chevreul event venue (up to 1,800 capacity), and Cité Artisanale artisan complex (2,500 m² across 7 lots).

Differentiator

Problem solved

Functional benefit

Brands

• Cinéma Les Lumières: A 4-screen cinema complex with 632 seats, managed by SPLNA, offering both mainstream and art-house programming (70% art and ensayo, 30% mainstream).
• Espace Chevreul

Products and services

• Underground Parking Operations Management and operation of 14 underground parking facilities providing 5,801 spaces across Nanterre, including 24/7 video surveillance, electric vehicle charging, monthly AMPLI'HABITANT resident subscriptions (€36-€50/month) and AMPLI'PRO/BUSINESS professional subscriptions (€65-€130/month), and hourly rates from €0.40/14 min to €19.50/24h. Includes a dedicated parking facility serving Cinéma Les Lumières on the same rates.
• Cinéma Les Lumières Municipal cinema complex managed by Semna featuring 4 screens with digital projection and 3D capabilities, 632 seats including 8 wheelchair-accessible spaces, and a programming mix of 30% mainstream and 70% arthouse films. Open 365 days per year, with tickets at €5 (reduced tariff), €8 (full tariff), and €60 for a 10-card, available via the leslumieres-nanterre.fr online platform.
• Espace Chevreul Event Venue Multipurpose event venue in Nanterre hosting 1,175 events annually, configurable for 20 to 1,800 people, including a stage, dance floor, audiovisual equipment, kitchen, and optional on-site catering. Pricing starts from €396 for the smallest configuration and scales with venue size and service package. Designed for celebrations, professional meetings, performances, and gatherings organized by companies, associations, and private individuals.
• Cité Artisanale Workshop Complex Managed workshop complex in Nanterre providing dedicated workshop units for rent to artisans and craft professionals. Operates as part of Semna's integrated municipal services portfolio, providing affordable workspace for small-scale craft businesses and trades within the city.
• SPLNA Urban Development Concessions Multi-year public-interest urban development concessions executed through Semna's subsidiary SPLNA, covering social housing, economic activity, and mixed-use development across ZACs (Zones d'Aménagement Concerté) in Nanterre, including the ZAC des Papèteries de la Seine, ZAC du Chemin de l'Ile, Quartier du Parc Sud, Le Petit Nanterre, Les Guilleraies (20 years of operation), and the Langevin concession. Combines public-interest developer status with private-sector execution discipline.

Quantifiable outcome

• 5,801 parking spaces managed across 14 underground facilities
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Four partnerships are on record, tiered core.

• EPT Paris Ouest La DéfensecoreStrategic or Co-development PartnerHolds 1% of SPLNA shares and 4 board seats. Public territorial establishment that is the conceding authority for urban renewal projects including the ZAC du Chemin de l'Ile concession.
• ANRU (Agence Nationale pour le Renouvellement Urbain)coreStrategic or Co-development PartnerNational urban renewal agency providing funding and support for NPNRU (Nouveau Programme National de Renouvellement Urbain) projects including Parc Sud and Petit Nanterre districts.
• DRIHL (Direction Régionale et Interdépartementale de l'Hébergement et du Logement)coreStrategic or Co-development PartnerRegional directorate providing support for housing and urban renewal projects.
• Social Housing Providers (Bailleurs Sociaux)coreStrategic or Co-development PartnerSocial housing organizations partnering on urban renewal projects including Parc Sud and Petit Nanterre districts, contributing to social housing rehabilitation and new construction.

Scale indicators11 records

Recent moves9 records

Expansion highlights6 records

Regional players

• SPL d'Aménagement de la Métropole Européenne de Lille: Public local company (SPL) structure similar to SEMNA's SPLNA subsidiary, executing urban development and renewal concessions in another French metropolitan area. Directly comparable legal/operating model but operating in northern France rather than Île-de-France.

Broad incumbents

• Indigo (formerly Vinci Park): Largest pure-play parking operator in France and globally, managing thousands of off-street and on-street parking facilities. Broader incumbent with private (not SEM) ownership model and much wider geographic footprint, but directly comparable core business.
• Eiffage Aménagement: Urban development arm of Eiffage Group, executing ZAC and concessions across France. Comparable to SEMNA's SPLNA subsidiary on large-scale urban renewal and concession projects.
• Q-Park: European parking operator with significant presence in France, focused on owning and operating parking facilities in city centers. Comparable core activity but with pan-European footprint and private ownership rather than a municipal SEM structure.
• Linkcity (Bouygues Construction): Bouygues group's urban development subsidiary, active in ZAC and mixed-use development across France. Comparable in urban project type and mixed-economy partnership models.
• Nhood: Mixed-use property developer and operator (formerly Auchan Retail Property) with focus on urban regeneration and commercial mixed-use projects. Comparable in mixed-use urban development scope to SEMNA's ZAC projects.

Direct peers

• Effia: French parking operator (Keolis/SNCF group) operating hundreds of facilities across France including municipal contracts. Highly comparable to SEMNA's parking operations, particularly at transit hubs and urban centers.
• Compagnie de Phalsbourg: Private French urban developer specializing in large mixed-use redevelopment projects (tertiary, retail, residential). Comparable to SEMNA's ZAC projects such as Papèteries de la Seine and Les Guilleraies in scale and use-case mix.
• Saemes: Société Anonyme d'Économie Mixte d'Exploitation du Stationnement de la Ville de Paris — operates municipal parking facilities for the City of Paris using the same SEM legal structure as SEMNA. Most direct peer given identical mixed-economy model and parking-centric service mix.

Others

• Caisse des Dépôts (CDC): Major institutional shareholder of SEMNA (15% stake) and primary financier of French urban renewal. An ecosystem participant — both shareholder and co-financier of SEMNA's urban development projects via ANRU framework.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat3 records

Key risks5 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/leslumieresnanterre
• Instagraminstagram.com/cinema_leslumieres
• LinkedInlinkedin.com/company/semna-

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 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 Semna,