What Losange does

Losange (legal entity: SAS LOSANGE) is a wholesale fiber optic network operator serving the Grand Est region of France under a public service delegation from the regional government. Founded in 2017 with Altitude Infrastructure as principal shareholder, the company builds and maintains a neutral and open fiber infrastructure that it does not sell to end customers directly; instead, it provides wholesale network access to a channel of more than 50 ISP partners who in turn serve residential subscribers, businesses, and local authorities. The core product is the Losange Fiber Network, with dedicated lines (FTTO) for enterprises and shared lines (FTTH) for residential customers, complemented by the GFU (Groupes Fermés d'Utilisateurs) secure connectivity offering for local authorities that combines fiber, 5G, and LoRa with end-to-end encryption and 24/7 supervision.

The company's product portfolio also includes mobile applications for citizens and local government stakeholders, address management and eligibility verification tools, dossier tracking services, and training/webinar programs. Underlying technology comprises fiber optic loop infrastructure, a centralized supervision hypervisor, and supporting digital platforms (website hosted by Jolifish Europe in Strasbourg). Notable technical differentiators include the open neutral network architecture that allows multiple ISPs to operate over a single physical network, and the GFU secure architecture combining fiber with 5G and LoRa for sovereign public-sector connectivity.

Losange generates revenue through recurring subscription-style network access fees paid by ISP partners, with end-customer pricing set by those partners rather than Losange. The company operates under exclusive public-service mandate covering Grand Est municipalities including the smallest rural communes, supported by 11-50 employees and headquartered in Lesménils. The 2025 long-term refinancing and 2024 headquarters inauguration, alongside 2026 subscriber acquisition campaigns, indicate ongoing operational scaling ahead of the 2030 copper network shutdown.

Name

Losange

Legal name

SAS LOSANGE

Website

https://losange-fibre.fr

Company type

Private

Founded year

2017

Operating status

Operating

Headcount range

11–50 employees

Short description

Losange operates a wholesale, neutral-and-open fiber optic network across France's Grand Est region under a public service delegation. It serves 50+ ISP partners offering residential, enterprise, and local authority connectivity, plus GFU secure networks combining fiber, 5G, and LoRa.

Ownership category

akta.pro rank

Product category

Wholesale Fiber Network Infrastructure

NAICS

Wired and Wireless Telecommunications Carriers (except Satellite) (51711)

SIC

Telegraph & Other Message Communications (4822)

akta.pro primary industry

Open-Access Fiber Network Operators (Wholesale-Only) (HDAIACAF)

akta.pro secondary industries

Municipal & Community Broadband Networks (HDAIACAE), Private LTE/5G Network Operators & Managed Services (HDAIAGAA)

Keywords

• Wholesale fiber network
• Fiber optic infrastructure
• FTTH FTTO services
• Neutral open network
• Public service delegation

Headquarters

HQ city

Champigny

HQ country

France

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Network Access Fees: Losange generates revenue by providing fiber network access to ISP partners (opérateurs). ISPs pay for access to the network infrastructure to serve end customers (individuals, businesses, and local authorities). This is a wholesale B2B model where the company does not sell directly to consumers.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Losange is a wholesale fiber optic network operator that builds and maintains a neutral and open very high-speed broadband infrastructure across the Grand Est region of France under a public service delegation from the Grand Est Region. The company does not sell fiber subscriptions directly to end customers; instead it provides network access to a network of 50+ ISP partner operators who deliver residential (FTTH), business (FTTO), and local authority services. Its portfolio includes the core fiber network, secure GFU networks for public authorities combining fiber, 5G, and LoRa, mobile applications, and operational services such as eligibility testing and connection tracking.

Product overview

Losange operates as a neutral and open fiber optic network infrastructure operator serving the Grand Est region of France under a public service delegation from the Grand Est Region. The company's core offering is the Losange Fiber Network, which provides very high-speed broadband connectivity through an open wholesale model enabling multiple telecom operators to serve end customers. The product portfolio centers on the main fiber network infrastructure for both residential (FTTH - shared fiber) and business (FTTO - dedicated fiber) segments, complemented by specialized offerings including secure network solutions for local authorities (GFU combining fiber, 5G, and LoRa technologies), mobile applications for citizens and local government stakeholders, and operational services such as address management, connection tracking, eligibility testing, and professional training programs. The infrastructure supports copper network transition (ADSL replacement) and serves all types of customers from individual homeowners to enterprises and public sector organizations.

Differentiator

Problem solved

Functional benefit

Products and services

• Réseau Fibre Losange (Losange Fiber Network)

Quantifiable outcome

• 94% of connection failures are attributable to commercial operators rather than Losange network issues

Named customers5 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature2 records

Partnerships

Five partnerships are on record, tiered core and minor.

• Altitude InfrastructurecoreStrategic or Co-development PartnerAltitude Infrastructure is identified as the main shareholder and key strategic partner. They serve as the data protection delegate (DPO) and provide data processing services. The company is involved in Losange's long-term refinancing and appears to be the primary infrastructure and operational partner behind the Losange network.
• Jolifish EuropeminorImplementation/ SI/ Consulting PartnerJolifish Europe is the website development and hosting provider for Losange. Located in Strasbourg, they are responsible for the technical implementation and maintenance of the losange-fibre.fr website.
• Region Grand EstcoreOthersThe Grand Est Region has entrusted Losange with a public service mission to build and maintain the fiber optic network throughout the region. This is the founding mandate that enables Losange's operations.
• OrangeminorOthersOrange, as the owner of the copper infrastructure, is responsible for the commercial and technical closure of the legacy copper network. Orange's copper shutdown schedule impacts when areas transition to fiber-only service.
• ISP Partners (50+ operators)coreChannel Partner/ Reseller/ DistributorLosange operates an open neutral network with 50+ ISP partners including Adista, Alphalink, Bouygues, Cirtel, Coriolis, Hexanet, Hub One, Knet Pro, Linkt, LuxNetwork, Nerim, Netalis, Open IP, SFR Business, Sewan, Stella, and many regional operators. These partners provide fiber services to end customers (individuals, businesses, local authorities) on the Losange network.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Regional players

• Citymesh: Belgian operator specializing in private 5G/LTE networks and dedicated connectivity for municipalities, ports, and industrial sites. Directly comparable to Losange's GFU (5G + LoRa + fiber for local authorities), though operating in Belgium rather than France.
• Delta Fiber Nederland: Dutch wholesale and retail fiber operator building open-access FTTH networks in regional Netherlands, with multi-ISP partner models similar to Losange. Comparable wholesale open-access architecture and regional infrastructure mandate, but in a different European market.

Broad incumbents

• TDF: French telecom infrastructure operator with diversified towers, fiber, and data center assets, including wholesale fiber backbones serving operators and public-sector clients. Comparable in being a neutral B2B infrastructure provider, but broader portfolio and primarily non-FTTH retail footprint.
• Altitude Infrastructure: Parent company and main shareholder of Losange; operates multiple regional open-access fiber networks (RIP) across France under the same neutral wholesale public-service-delegation model. Directly comparable business model and customer base, but operating at a multi-region scale rather than a single territory.
• Orange Wholesale (including Orange Concessions / GTH): Dominant French telecom incumbent operating both regulated wholesale fiber (fiber-to-the-home access) and AMII/AMEL rollouts. Losange's GFU offering competes with Orange's enterprise/public-sector connectivity solutions, and Orange's copper shutdown schedule is a direct demand driver for Losange.
• Numericable / SFR FTTH wholesale arm: SFR (Altice) operates wholesale fiber access alongside its retail business and is itself an ISP partner on the Losange network. Comparable in offering enterprise FTTO/FTTH services but at national retail-plus-wholesale scale rather than a single regional delegation.

Direct peers

• Axione: French wholesale-only fiber network operator (part of Bouygues Construction/Equans) building and operating public-initiative FTTH networks in multiple French regions under public service delegations. Closely comparable to Losange in model (neutral wholesale, ISP partners), product set, and public-sector mandate.
• XpFibre (SFR FTTH): Wholesale FTTH network operator (backed by Altice/SFR) deploying open-access fiber in less-dense French territories under AMII/AMEL frameworks. Same wholesale open-access architecture, same ISP-multiplex strategy, and overlapping regional ISP customers (e.g., SFR Business is itself an ISP partner of Losange).
• Covage: Wholesale-only fiber infrastructure operator serving French regions and business districts, now part of the Altitude Infrastructure group. Operates the same open-access FTTH model with multiple ISP partners, making it the most direct in-group comparable to Losange.

Emerging players

• Netalis: French B2B-focused fiber operator and ISP partner on the Losange network, serving SMEs/ETIs and local authorities. Comparable target customer (regional enterprises, public sector) but operates as an ISP rather than a network owner.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• YouTubeyoutube.com/channel/UCjR8e1v5i7dF5pCZzXby9wA
• Facebookfacebook.com/LafibreoptiqueLosange
• LinkedInlinkedin.com/company/losangefibre
• Xx.com/LosangeFibre

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 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 Losange