Fiber 31

What Fiber 31 does

Fibre 31 SAS is a French wholesale fiber optic network infrastructure operator headquartered in Toulouse, incorporated in 2018 as a joint venture between Altitude Infrastructure, Caisse des dépôts et consignations, and the MARGUERITE fund. The company was purpose-built to execute a 25-year Delegation of Public Service (DSP) contract awarded by Haute-Garonne Numérique, a public mixed syndicate created in 2016 by the Haute-Garonne Departmental Council. Its mission spans the full lifecycle of a public-initiative fiber network: conception, construction, operation, maintenance, and commercialization of passive FTTH (Fiber To The Home) and FTTE (Fiber To The Enterprise) infrastructure across the Haute-Garonne department.

The company's product surface is built on a passive optical architecture comprising Optical Network Termination (ONT) equipment, Dispositif de Terminaison Intérieure Optique (DTIO) units, Point Branchement Optique (PBO) nodes, and vertical building infrastructure (columnes montantes, goulottes). Network deployment was completed in four years (2018–2022), delivering 280,000+ planned connections covering 100% of Haute-Garonne Numérique's territory, with the network reaching 330,000+ marketable connections and 227,000+ subscribed households (69% penetration) by mid-2026. The firm is operationally embedded within the Altitude Infrastructure group (Altitude Infra), which following the 2021 acquisition of Covage became France's first national-scale independent fiber infrastructure operator with 5 million+ connections.

Fibre 31 monetizes exclusively through wholesale network access fees paid by Internet Service Providers under operator access contracts covering FTTH active/passive and FTTE passive lines. It does not sell subscriptions directly to end consumers; pricing to households is determined by individual ISP partners. The go-to-market combines a B2B channel-partner model (ISPs including Orange and other commercial operators) with direct engagement of local authorities through public information sessions ("permanences") in municipalities and a website-based eligibility testing tool. A wholly-owned subsidiary, Fibre 31 Déploiement, executes network construction. Customer segments are organized vertically: residential households (Particuliers), enterprises (Entreprises), local authorities (Élus et Collectivités), and ISP operators (Opérateurs).

Name

Fiber 31

Legal name

Fibre 31 SAS

Website

https://fibre31.fr

Company type

Private

Founded year

2018

Operating status

Operating

Headcount range

11–50 employees

Short description

Fibre 31 is a wholesale fiber optic network operator that designs, builds, and commercializes FTTH and FTTE passive infrastructure across the Haute-Garonne department in France under a 25-year public service delegation, serving ISPs and end users through partner operators.

Ownership category

akta.pro rank

Product category

Wholesale Telecommunications Infrastructure

NAICS

Wired and Wireless Telecommunications Carriers (except Satellite) (51711), Wired and Wireless Telecommunications (except Satellite) (5171)

akta.pro primary industry

Fiber-to-the-Home (FTTH) Operators (HDAIACAB)

akta.pro secondary industries

Fiber-to-the-Premises (FTTP/FTTH) Broadband Providers (HDAIABAC), Rural Broadband & Cooperative Fiber Operators (HDAIACAG)

Keywords

• Fiber optic networks
• Wholesale telecom infrastructure
• FTTH network deployment
• Public service delegation
• Fiber network operations

Headquarters

HQ city

Toulouse

HQ country

France

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Wholesale Network Access Fees: Fibre 31 commercializes its fiber optic network infrastructure to Internet Service Providers (ISPs) who then provide services to end consumers. Operators pay access fees to use the network for FTTH and FTTE services. The company handles network conception, construction, exploitation, maintenance, and commercialization under a 25-year Delegation of Public Service (DSP) contract.
2. Operator Access Contracts: Commercial contracts with ISPs for active and passive FTTH access lines, as well as FTTE passive access for enterprises. Multiple annexes and pricing schedules govern these relationships.

Pricing tiers

Go-to-market motion2 records

Distribution channels2 records

Marketing channels5 records

Core offering

Fibre 31 designs, builds, operates, maintains, and commercializes a public fiber optic network covering 100% of the Haute-Garonne department in France under a 25-year Delegation of Public Service contract. The company sells wholesale network access (FTTH for residential and FTTE for enterprises) to Internet Service Providers, who in turn deliver retail fiber services to households and businesses. Supporting offerings include building fiber connection installation and new construction adduction services.

Product overview

Fibre 31 operates a fiber optic network infrastructure in Haute-Garonne, France. The company offers two core network access products: FTTH (Fiber To The Home) for residential customers and FTTE (Fiber To The Enterprise) for business customers. Supporting services include building fiber connection, new construction adduction services, and an eligibility testing tool for prospective customers. The company commercializes network access to Internet Service Providers through various access contract offerings (active and passive FTTH, passive FTTE). The network covers 100% of Haute-Garonne department territory with 280,000 planned connections.

Differentiator

Problem solved

Functional benefit

Products and services

• FTTH (Fiber To The Home) Network Access Passive fiber optic network access commercialized wholesale to Internet Service Providers for delivery of residential very-high-speed internet services (up to 1 Gbit/s) to households in Haute-Garonne.
• FTTE (Fiber To The Enterprise) Network Access Passive dedicated fiber optic access for businesses and enterprises, commercialized wholesale to ISPs, providing high-speed connectivity with service level guarantees and professional installation.
• Operator Access Contracts (FTTH Active, FTTH Passive, FTTE Passive)

Quantifiable outcome

• 330,000+ marketable fiber connections deployed
• +4 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

Four partnerships are on record, tiered core.

• Altitude Group (Altitude Infra)coreStrategic or Co-development Partner · 30 September 2021Following the acquisition of Covage's assets in September 2021, Altitude Group became the leading independent fiber infrastructure operator in France. The acquisition added 5 million+ connections and made Altitude the first public network operator at national scale. Fibre 31 operates as part of this group.
• Altitude InfrastructurecoreStrategic or Co-development Partner · 1 January 2018Altitude Infrastructure is the parent company that co-created Fibre 31 along with Caisse des dépôts et consignations and MARGUERITE fund. Altitude Infrastructure handles the technical deployment, operations, and website hosting. Fibre 31 is part of the Altitude Infra group.
• Haute-Garonne NumériquecoreStrategic or Co-development PartnerOpen Mixed Syndicate (Syndicat Mixte Ouvert) created in June 2016 at the initiative of the Haute-Garonne Departmental Council. Haute-Garonne Numérique launched the Delegation of Public Service that Fibre 31 was created to manage. It is the public authority overseeing the project.
• Adduction by Altitude InfracoreTechnology or IntegrationSubsidiary handling new construction adduction services (connecting new buildings to the fiber network). Provides support to property owners for fiber readiness of new constructions.

Scale indicators9 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Orange: France's largest telecom operator, a key ISP partner on Fibre 31's wholesale network and a major FTTH retail provider nationally — relevant as both a customer-counterparty and as a broader incumbent operating wholesale and retail broadband.
• Iliad / Free: French broadband operator with a fast-growing FTTH retail footprint that competes on wholesale networks like Fibre 31; relevant as both a potential ISP partner and a competing retail fiber provider.
• TDF: French infrastructure operator best known for broadcast towers but increasingly active in fiber and digital infrastructure; comparable as a regulated/wholesale-focused telecom-infrastructure platform serving multiple operators.
• Bouygues Telecom: Owner of Axione and a major retail FTTH operator in France; relevant both as parent of the most direct French FTTH peer and as a wholesale customer competing on DSP-built networks like Fibre 31.
• Altice France / SFR: Major French telecom operator combining retail broadband with wholesale-fiber interests via SFR Fibre; an important ISP partner and a comparable end-to-end carrier+ISP operator in the same value chain.

Direct peers

• Axione: Subsidiary of Bouygues Telecom operating as a wholesale FTTH/FTTE infrastructure operator under public-service models in France — the closest functional analogue to Fibre 31's DSP-driven wholesale fiber business.
• Covage: Former independent French wholesale fiber operator (consolidated within Altitude following the 2021 Covage asset acquisition); directly comparable business model of operating public/private FTTH/FTTE networks for ISPs.
• Altitude Infrastructure: Parent and lead operator of multiple French public-service fiber networks including Fibre 31; offers the same wholesale FTTH/FTTE model across many regional DSPs and shares technical and operational platforms with the subject.

Regional players

• Deutsche Glasfaser: Germany's largest independent FTTH wholesale operator deploying rural and semi-urban fiber under regulated/cooperative models; analogous in business model (wholesale infrastructure for ISPs) but operating in a different geography.
• Delta Fiber: Dutch fiber operator combining wholesale and retail FTTH across regional networks; comparable to Fibre 31 as a multi-ISP wholesale fiber platform focused on regional/town coverage outside major cities.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/fibre31hg
• Facebookfacebook.com/Fibre-31-2184391648475217
• LinkedInlinkedin.com/company/fibre-31

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 Fiber 31