What Seine-et-Marne Numérique does

Seine-et-Marne Numérique is a public mixed syndicate (Syndicat mixte) headquartered in Melun, France, established in January 2013 to coordinate digital infrastructure development across the Seine-et-Marne department. It is governed jointly by the Department of Seine-et-Marne, the Île-de-France Region, and 22 intercommunalities (EPCIs), which transferred their digital development competence under Article L1425-1 of the CGCT. Its primary mission is to ensure universal access to very high-speed fiber optic internet, covering more than 310,000 premises including homes, businesses, and public sites — particularly the most isolated areas of the department.

The organization operates two complementary fiber networks: sem@fibre77, an FTTH (Fiber-to-the-Home) network with 332,000+ connectable optical premises and 97% deployment completion, operated under a Delegation of Public Service (DSP) contract with Seine-et-Marne THD (XpFibre group); and Sem@for77, a public sites network connecting 3,700+ municipal, educational, healthcare, and emergency facilities, operated by Covage. End-user services are commercialized through 8 internet service providers (Bouygues Telecom, Coriolis, Free, Kiwi, Nordnet, Orange, Ozone, SFR), achieving a 68% subscriber take-rate among eligible premises (150,000+ subscribers as of mid-2023).

Since 2023, Seine-et-Marne Numérique has expanded its mandate into digital services as a mutualizing organization, adding cybersecurity, IoT (sem@Connect77 with 1,000+ sensors deployed), dark fiber IoT connectivity (SmartFiber Infra), and videoprotection services for its member EPCIs and municipalities. Revenue is generated indirectly through member contributions from EPCIs, the Department, and the Region, rather than direct end-user pricing — consistent with its public infrastructure mandate and DSP contractual structure.

Name

Seine-et-Marne Numérique

Legal name

Seine-et-Marne Numérique

Website

https://seine-et-marne-numerique.fr

Company type

Private

Founded year

2013

Operating status

Operating

Headcount range

11–50 employees

Short description

Seine-et-Marne Numérique is a French public mixed syndicate that deploys and coordinates FTTH fiber optic infrastructure across the Seine-et-Marne department, serving 332,000+ premises and 3,700+ public sites, and has expanded into cybersecurity and IoT digital services for its 22 EPCI members.

Ownership category

akta.pro rank

Product category

Public Telecommunications Infrastructure

NAICS

Wired Telecommunications Carriers (517111)

SIC

Communications Services, Nec (4899)

akta.pro primary industry

Municipal & Community Broadband Networks (HDAIACAE)

akta.pro secondary industries

Fiber-to-the-Home (FTTH) Operators (HDAIACAB), Neutral-Host Fiber & Shared Access Network Operators (HDAIACAJ)

Keywords

• Public fiber optic networks
• FTTH infrastructure deployment
• Digital territorial development
• Public broadband syndicate
• Municipal connectivity services

Headquarters

HQ city

Melun

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Delegation of Public Service (DSP): The organization delegates the construction, operation, and commercialization of its FTTH network to private operators (currently XpFibre via Seine-et-Marne THD) through public service delegation contracts. The infrastructure remains publicly owned by Seine-et-Marne Numérique.
2. Digital Services: Since 2023, Seine-et-Marne Numérique has expanded activities to provide digital services as a mutualizing organization, including cybersecurity and IoT services to member EPCIs and municipalities.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core offering

Seine-et-Marne Numérique is a public mixed syndicate that deploys and owns public fiber optic infrastructure across the Seine-et-Marne department, operating the sem@fibre77 FTTH network for residential and business premises (over 332,000 connectable optical ports) and the Sem@for77 network for public institutional sites (3,700+ connected sites). Since 2023, it has expanded into mutualized digital services including IoT (sem@Connect77, SmartFiber Infra dark fiber for videoprotection) and cybersecurity offerings for local authorities.

Product overview

Seine-et-Marne Numérique operates as a public infrastructure syndicate (Syndicat mixte) managing two complementary fiber optic networks: sem@fibre77 is the FTTH residential/business network reaching over 332,000 connectable optical ports, while Sem@for77 serves public institutional sites with dedicated fiber connectivity. The organization has expanded into digital services including SmartFiber Infra (dark fiber IoT connectivity) and sem@Connect77 (IoT sensor infrastructure), positioning itself as a comprehensive digital infrastructure provider for the Seine-et-Marne territory.

Differentiator

Problem solved

Functional benefit

Brands

• sem@fibre77: FttH (Fiber to the Home) fiber optic network for residential and business premises operated by Seine-et-Marne THD (XpFibre)
• Sem@for77
• SmartFiber Infra
• sem@Connect77

Products and services

• sem@fibre77 FTTH (Fiber-to-the-Home) public initiative network providing very high-speed fiber optic internet access to over 332,000 connectable premises across Seine-et-Marne department, enabling residential and business subscribers to access fiber services through 8 commercial ISPs.
• Sem@for77 Fiber optic network dedicated to connecting public sites including municipalities, communities, healthcare facilities, schools, training centers, libraries, and emergency services, serving over 3,700 sites including 800+ newly connected public sites.
• SmartFiber Infra Service option for IoT connectivity using dark fiber (Fibre Optique Noire), enabling connection of devices such as video protection cameras without requiring costly civil engineering work or maintenance of deployed fiber infrastructure.
• sem@Connect77 IoT sensor network infrastructure deployed across the territory using LoRa antennas, enabling municipalities to connect various sensors and monitoring devices for smart territory management applications.
• Cybersecurity Services

Quantifiable outcome

• 97% of sem@fibre77 network deployed covering 332,000+ optical connection points
• +4 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

14 partnerships are on record, tiered minor and core.

• SDESM (Syndicat Départemental des Énergies de Seine-et-Marne)minorStrategic or Co-development Partner · 6 December 2023Joined digital services complementary activity as associate member. Benefits from service catalog without seat on the syndicate committee.
• Communauté de Communes du Pays de NemourscoreStrategic or Co-development Partner · 6 December 2023Adhered to complementary digital services activity along with Provinois and Val Briard, enabling 80 municipalities to access cybersecurity and IoT services.
• Communauté de Communes du ProvinoiscoreStrategic or Co-development Partner · 6 December 2023Adhered to complementary digital services activity along with Pays de Nemours and Val Briard.
• Communauté de Communes du Val BriardcoreStrategic or Co-development Partner · 6 December 2023Adhered to complementary digital services activity along with Pays de Nemours and Provinois.
• XpFibre (SFR FTTH)coreTechnology or Integration · 26 April 2021XpFibre (new name of SFR FTTH) is the current infrastructure operator for sem@fibre77 network through Seine-et-Marne THD. Handles construction, operation, and commercialization of FTTH network under DSP contract since January 2015. In April 2021, XpFibre and Altitude Infra entered exclusive negotiations for Altitude Infra to acquire certain Covage assets.
• Altitude InfracoreTechnology or Integration · 26 April 2021Independent telecom infrastructure operator that entered exclusive negotiations with XpFibre to take over part of Covage's RIP assets, including Sem@for77. Finalization expected in second half of 2021 pending European Commission approval.
• Département de Seine-et-MarnecoreStrategic or Co-development PartnerThe Department of Seine-et-Marne is the founding authority of Seine-et-Marne Numérique, providing governance and funding alongside the Region and EPCIs.
• Région Île-de-FrancecoreStrategic or Co-development PartnerThe Île-de-France Region co-founds Seine-et-Marne Numérique alongside the Department and intercommunalities.
• 22 EPCI Members (Intercommunalités)coreStrategic or Co-development Partner22 intercommunalities (Communautés d'Agglomération and Communautés de Communes) are members of the mixed syndicate, contributing to governance and funding fiber deployment on their territories.
• XpFibre (sem@fibre77 delegate)coreTechnology or IntegrationInfrastructure operator delegated for sem@fibre77 network under DSP contract (SFR FTTH / XpFibre brand). Handles FTTH deployment, operation, and ISP relations.
• Covage (Sem@for77 delegate)coreTechnology or IntegrationFormer delegate for Sem@for77 public fiber network since 2006. Assets subject to exclusivity agreement between XpFibre and Altitude Infra for partial acquisition.
• ANCT (Agence Nationale de la Cohésion des Territoires)minorStrategic or Co-development PartnerNational agency for territorial cohesion, an institutional stakeholder in digital development projects.
• ARCEPminorStrategic or Co-development PartnerRegulatory authority for electronic communications and posts, overseeing telecom sector including fiber deployment.
• CEREMAminorStrategic or Co-development PartnerPublic establishment for studies and expertise on urban planning and infrastructure, supporting territorial development.

Scale indicators11 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• TDF: French infrastructure operator with growing fiber and digital-territory activities, including public-initiative network operations. Comparable as a large incumbent with diversified telecom-infrastructure businesses spanning broadcast, towers, and fiber.
• Orange: France's incumbent operator with the largest commercial FTTH footprint, acting both as a wholesale ISP partner on sem@fibre77 and as a competing infrastructure operator in its own AMII/AMEL zones. Comparable as a large-scale French fiber network operator.

Direct peers

• Covage: Former FTTH infrastructure operator that historically operated the Sem@for77 network; now under XpFibre/Altitude Infra restructuring. Directly comparable as a delegated public-network operator in France, though currently in transition.
• Axione: FTTH and digital infrastructure operator (Bouygues Construction subsidiary) active in designing, building, and operating public-initiative fiber networks. Comparable as a French RIP infrastructure operator and potential future counterparty.
• Altitude Infra: France's largest independent FTTH infrastructure operator, owner/operator of multiple RIPs including the assets carved out of Covage (Sem@for77). Direct peer as delegated operator of French public initiative networks and counterparty of choice for syndicates like Seine-et-Marne Numérique.
• Val d'Oise Numérique: Departmental syndicat mixte for Val d'Oise (95) operating public FTTH under a delegated service model with multiple commercial ISPs. Direct peer in the same regional and institutional framework.
• Essonne Numérique: Public departmental structure for Essonne (91) deploying fiber-to-the-home and operating a public-sites network, structurally analogous to Seine-et-Marne Numérique and a directly comparable syndicate in the Île-de-France ecosystem.
• Yvelines Numérique: Departmental public mixed syndicate for the neighboring Yvelines department in Île-de-France, deploying FTTH via DSP contracts and pursuing a similar model of municipal coordination and digital services extension. Direct structural and operational peer.
• XpFibre (SFR FTTH): FTTH infrastructure subsidiary of Altice France operating the sem@fibre77 network under DSP. Operates dozens of French RIPs on a delegated basis and is the most direct operational counterparty of Seine-et-Marne Numérique.

Emerging players

• Sarthe Numérique (Sartel THD): Departmental public broadband network operator for Sarthe, structurally analogous to Seine-et-Marne Numérique with a delegated FTTH model. Useful as a regional out-of-Île-de-France benchmark for similar departmental RIPs.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/syndicat-mixte-seine-et-marne-numerique

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Subsidiaries2 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 Seine-et-Marne Numérique