Sigeif
Sigeif is a French public intercommunal syndicate founded in 1904 that controls gas and electricity distribution concessions for 193 municipalities in Île-de-France (5.9 million inhabitants), coordinates group gas purchasing for 482 public buyers, and deploys sustainable mobility and renewable energy infrastructure through its SEM subsidiary Sigeif Mobilités.
- Company typePrivate
- Founded1904
- HeadquartersParis, France
- Headcount11–50
- GTM typeB2B
- OfferingServices
What Sigeif does
Sigeif (Le Syndicat intercommunal pour le gaz et l'électricité en Île-de-France) is a public intercommunal syndicate founded in 1904 in Paris, France, that serves as the statutory concession authority for gas and electricity distribution across 193 member municipalities in the Île-de-France region covering 5.9 million inhabitants. As a public-law entity governed by French statute, it controls 9,553 km of gas distribution network operated under contract by GRDF and 9,483 km of electricity distribution network operated under contract by Enedis, providing concession oversight, metering calibration, and infrastructure coordination. It was the first major intercommunal entity in France and today functions as the largest public gas buyer in Île-de-France, coordinating a group purchasing consortium of 482 public sector buyers aggregating ~9 TWh of gas procurement over three years across ~11,000 delivery points. Sigeif has no commercial revenue stream — operations are funded through member contributions, statutory fees, and government grants — and it manages large-scale energy transition infrastructure through its SEM subsidiary Sigeif Mobilités (created December 2016), which operates 1,245+ public EV charging points (exploited by Izivia since January 2024) and six public bio-GNC stations. Recent strategic priorities include the €100M+ Biométhanisation Gennevilliers unit (under construction since April 2025), the Marcoussis solar farm (20.3 MWc, €18M, inaugurated October 2021), the Plaine Vallée solar park (8.4 MWc, statutes signed January 2026), the SOGÉO geothermal district heating concession with Dalkia (June 2026), and a 10% equity stake in Last Mhyle for hydrogen refueling infrastructure. Sigeif is led by a 378-member committee of elected officials with a 16-member bureau, currently chaired by President Bernard Gauducheau (elected May 2026), succeeding Jean-Jacques Guillet.
Sigeif firmographics
Firmographics- Name
- Sigeif
- Legal name
- Le Syndicat intercommunal pour le gaz et l'électricité en Île-de-France
- Website
- https://sigeif.fr
- Company type
- Private
- Founded year
- 1904
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Sigeif is a French public intercommunal syndicate founded in 1904 that controls gas and electricity distribution concessions for 193 municipalities in Île-de-France (5.9 million inhabitants), coordinates group gas purchasing for 482 public buyers, and deploys sustainable mobility and renewable energy infrastructure through its SEM subsidiary Sigeif Mobilités.
- Ownership category
- akta.pro rank
Sigeif industry classification
Industry- Product category
- Public Energy Distribution Management
- NAICS
- Natural Gas Distribution (22121), Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330)
- SIC
- Electric, Gas & Sanitary Services (4900), Natural Gas Distribution (4924), Cogeneration Services & Small Power Producers (4991)
- akta.pro primary industry
- DER Financing, Contracting & Program Management (PPAs, Shared Savings, Performance) (EUAFAHAL)
- akta.pro secondary industries
- Regulated Natural Gas Utility (LDC) Customer Acquisition & Switching (EUAAADAA), District Energy & CHP-Based Microgrids (Thermal Networks + Power) (EUACALAL), Interconnection, Permitting & Grid Services for DERs (EUAMAJAH)
Keywords
Where Sigeif is headquartered
LocationHeadquarters
- HQ city
- Paris
- HQ country
- France
- HQ region
- Europe
Offices1 record
Markets served
Sigeif business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Public Service Organization - No Commercial Revenue: Sigeif is a public intercommunal union (syndicat) that does not generate commercial revenue. Its operations are funded by member contributions, statutory fees, and government grants for energy transition projects. It acts as a coordinating and controlling authority for gas and electricity distribution concessions.
- Group Purchasing Coordination Fees: Sigeif coordinates the largest public procurement group in Île-de-France for gas and energy efficiency services, aggregating ~482 members and ~9 TWh of gas purchasing volume. It does not charge explicit fees but exercises its statutory role as coordinator of public energy procurement.
- Fonds Île-de-France Décarbonation Investment: In February 2025, Sigeif invested 5 million euros in the Île-de-France Décarbonation Fund, a co-investment fund with GRDF and the Île-de-France Region targeting companies with innovative decarbonation and renewable gas technologies.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Pay-as-you-go | Free shared energy advisory (CEP) for municipalities under 10,000 inhabitants |
| Other | Pay-as-you-go | 100% financed electric vehicle charging infrastructure for member communes |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels6 records
Sigeif product offering
Product offeringCore offering
Sigeif is a public intercommunal syndicate that manages the gas and electricity distribution concessions granted by its 193 member communes in Île-de-France, acting as the contracting authority with GRDF and Enedis. Beyond concession oversight, it runs group gas purchasing on behalf of ~482 public entities (≈9 TWh per year), delivers an energy-savings advisory service (CEP) to public buildings, and deploys sustainable-mobility and renewable-energy infrastructure — EV charging stations, GNV/bio-GNV fueling stations, geothermal and renewable heat networks, biomethane units, and solar projects — through its subsidiary Sigeif Mobilités and its technological experimentation program.
Differentiator
Problem solved
Functional benefit
Products and services
- Gas Distribution Concession Management Statutory oversight of the public gas distribution service: contracting authority role with GRDF, monitoring works, patrimony audits, and conciliation of disputes with users. Designed for member communes in Île-de-France.
- Electricity Distribution Concession Management Control of Enedis electricity concession contracts on behalf of communes: patrimony inventories, investment tracking, voltage-quality monitoring, and user conciliation.
- Group Gas Purchasing Service Aggregated natural-gas procurement on behalf of public entities (communes, social landlords, hospitals, EPCIs), providing economies of scale through framework agreements with suppliers. Approximately 482 public entities and ~9 TWh of gas annually.
- Energy Savings Advisory Service (CEP) Conseil en Économie Partagée: third-party financing of energy audits and works, with recovered savings shared between the public entity and Sigeif. Helps public buildings reduce consumption without upfront investment.
- EV Charging Infrastructure (IRVE) — Sigeif Mobilités 100% financed deployment, operation, and maintenance of electric-vehicle charging stations (IRVE) on public land for member communes and EPCIs. Currently operates approximately 600 charging points.
- GNV and Bio-GNV Fueling Stations Deployment and operation of compressed natural gas (GNV) fueling stations for public fleets, with a conversion roadmap to bio-GNV produced from local biomethane. Used by public-entity vehicle fleets.
- Geothermal and Renewable Heat Networks Development, financing, and operation of geothermal and renewable-heat networks (biomass, recovery heat) supplying public buildings, social-housing stock, and other public consumers.
- Biomethane Production Projects Investment in biomethane production units to inject renewable gas into the public distribution network and supply the bio-GNV mobility stations.
- Solar Power Plant Deployment Photovoltaic installations on public roofs, land, and other public assets, developed either directly or through participations, including agrivoltaic projects.
- Technological Experimentation Program Annual call for innovative projects in energy and mobility, with Sigeif co-funding of up to €300,000 per project. Open to public entities, startups, and research partners.
Quantifiable outcome
- 22 GWh/year electricity production from the Marcoussis solar farm (equivalent to ~10,000 inhabitants)
- +7 more outcomes
Companies that use Sigeif
Customer profileNamed customers3 records
Segments3 records
Ideal customer profiles3 records
Sigeif technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Sigeif partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core and minor.
- SEMAVOcoreSEMAVO (Société d'Économie Mixte d'Assainissement du Val-d'Oise) partnered with Sigeif, Plaine Vallée, and Saint-Brice-sous-Forêt to create the SAS ENR 'Parc Solaire Plaine Vallée' for developing an 8.4 MWc solar farm on an 8.5 ha former brownfield site, producing ~9 GWh/year for 1,500-2,000 households.
- DalkiacoreDalkia was selected by Sigeif's administration committee (February 2026) as the concessionnaire for the intercommunal heat network covering Chaville, Sèvres, Viroflay, and Ville-d'Avray. The SOGÉO geothermal heat network contract was signed June 23, 2026.
- IziviacoreIzivia (subsidiary of EDF) has been the operator of Sigeif's public EV charging network since January 2024, managing over 1,180 charging points. Sigeif retains ownership and financing responsibility while Izivia handles exploitation.
- GRDFcoreGRDF is the gas distribution concessionnaire operating the 9,553 km gas network across Sigeif's territory. A new concession contract was signed in October 2022, effective 2024, formalizing energy transition actions. GRDF co-develops biomethane injection, the Gazpar meter rollout, gas absorption heat pump pilots, hydrogen projects, and the Ma ZFE fleet transition tool.
- SEY 78minorSEY 78 (Syndicat d'Énergie des Yvelines) coordinates with Sigeif as a conceding authorities group for the intercommunal heat network project covering Bailly, Bougival, La Celle-Saint-Cloud, Le Chesnay-Rocquencourt, and Noisy-le-Roy, with ENGIE selected as concessionnaire.
- SyctomcoreSyctom (the intermunicipal union for household waste treatment for Greater Paris) and Sigeif co-developed the Biométhanisation Gennevilliers project, a €100M+ industrial unit processing 50,000 tonnes/year of food waste from Syctom's territory into 25,000-30,000 MWh/year of biomethane injected into the gas distribution network, plus agricultural fertilizer. First stone laid September 18, 2025; works began April 2025.
- EnediscoreEnedis is the electricity distribution concessionnaire operating the 9,483 km electricity network across Sigeif's electricity territory (66 municipalities). A new concession contract was signed October 21, 2019, introducing shared governance of investments and an infrastructure master plan. Enedis manages the Linky smart meter rollout on Sigeif's territory.
- Last MhyleminorSigeif Mobilités took a 10% equity stake in Last Mhyle, a company developing 16 hydrogen refueling stations across Île-de-France. The project was selected in a European call for projects and received ADEME financing. Sigeif Mobilités assists the company in finding land for its projects.
- Fondation Énergies pour le Monde (Fondem)minorSigeif partnered with Fondem, the Île-de-France Region, and the City of Paris to electrify a rural community in northern Casamance, Senegal, with a €40,000 subsidy. This is part of Sigeif's international decentralized cooperation program.
- FraikinminorFraikin (commercial vehicle leasing company) partnered with Sigeif Mobilités and TAB Rail Road in the 'Olympic Energy' project, which received a €5.7M European subsidy to develop 8 GNV/bio-GNV refueling stations along European corridors and in urban nodes in Île-de-France.
- TAB Rail RoadminorTAB Rail Road partnered with Sigeif Mobilités and Fraikin in the 'Olympic Energy' project, which received a €5.7M European subsidy for GNV/bio-GNV infrastructure in Île-de-France.
- ENGIE GreencoreENGIE Green is Sigeif's co-development partner for renewable energy projects. Together they developed the Marcoussis solar farm (20.3 MWc, 58,000 panels, €18M budget, 22 GWh/year), inaugurated October 2021. ENGIE Green brought technical expertise and financing while Sigeif provided public coordination and participatory financing (€1.395M raised from local residents).
- Sigeif MobilitéscoreSigeif Mobilités is a SEM (Société d'Économie Mixte) wholly dedicated to sustainable mobility infrastructure in Île-de-France. Created in December 2016, it develops and operates a network of public GNV/bio-GNV stations (6 stations as of June 2026), EV charging infrastructure (over 50 kW), and hydrogen refueling. Sigeif is the majority or sole public shareholder.
- SedifminorSedif (Syndicat des eaux d'Île-de-France) co-founded the Syncom association with Sigeif and Sipperec for coordinating roadworks and tracking excavations across utility networks in Île-de-France. Sedif is a member of the Services Publics Urbains du Grand Paris (SPUGP).
- SipperecminorSipperec (Syndicat Parisien pour l'Electricité et les Réseaux de Communication) co-founded the Syncom association with Sigeif and Sedif for real-time roadwork coordination. Sipperec is a member of the Services Publics Urbains du Grand Paris (SPUGP).
Scale indicators20 records
Recent moves7 records
Expansion highlights6 records
Sigeif competitors and assessment
Company assessmentOthers
- ADEME: Agence de la Transition Écologique is the French energy transition agency providing material financial support to Sigeif's programs (Contrat Chaleur Renouvelable / Fonds Chaleur, shared energy advisory CEP, Île-de-France Décarbonation Fund co-creation).
- FNCCR: Fédération Nationale des Collectivités Concédantes et Régies is the national French federation of which Sigeif is a member; sets industry framework for concession-granting authorities and provides peer coordination across hundreds of French energy syndicats.
Broad incumbents
- ENGIE: Major French energy group serving as Sigeif's co-development partner across solar (Marcoussis), geothermal heat networks, and concession contracts; comparable as a broad incumbent in French utility services.
- GRDF: France's principal gas distribution network operator (Gaz Réseau Distribution France) operates the 9,553 km of gas distribution network on Sigeif's territory under concession contract and co-invests in biomethane injection, Gazpar meters, and pilot programs.
- Enedis: France's principal electricity distribution network operator operates the 9,483 km of electricity network on Sigeif's territory and is the corresponding electricity-side concessionaire and Linky rollout partner (signed new concession contract October 2019).
Direct peers
- SDESM: Syndicat Départemental des Énergies de Seine-et-Marne is the Seine-et-Marne département energy syndicat, structurally and functionally analogous to Sigeif as a public intercommunal coordinating authority for gas and electricity distribution in Île-de-France.
- SEY 78: Syndicat d'Énergie des Yvelines is the neighboring Yvelines département energy syndicat with an essentially identical model of municipal energy coordination, group purchasing, and renewable project development (also a Sigeif partner on district heating concessions).
- SEDIF: Syndicat des Eaux d'Île-de-France is the Paris-area public water-utility syndicat, with the same public intercommunal governing structure, elected committee model, and statutory public-service role as Sigeif (also a co-founder of the Syncom coordination association).
- SIPPEREC: Syndicat Parisien pour l'Électricité et les Réseaux de Communication is a Parisian intercommunal public authority for electricity distribution and digital networks; the closest structural and functional peer to Sigeif in the Paris area (also a Sigeif partner through the Syncom association).
Regional players
- Hérault Énergie: Département energy syndicat serving Hérault in southern France; uses the same public-authority model for municipal energy coordination, group purchasing, and renewable infrastructure development but operates in a different geographic market.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks5 records
Key highlights5 records
Customer concentration
Sigeif social profiles
Digital presenceSigeif financial estimates
Financial estimateRevenue estimate
Valuation estimate
Sigeif leadership team
Management profileNumber of profiles
Profiles11 records
Sigeif subsidiaries and ownership
Company hierarchySubsidiaries2 records
Sigeif funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Sigeif M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Sigeif
What does Sigeif do?
Sigeif is a public intercommunal syndicate that manages the gas and electricity distribution concessions granted by its 193 member communes in Île-de-France, acting as the contracting authority with GRDF and Enedis. Beyond concession oversight, it runs group gas purchasing on behalf of ~482 public entities (≈9 TWh per year), delivers an energy-savings advisory service (CEP) to public buildings, and deploys sustainable-mobility and renewable-energy infrastructure — EV charging stations, GNV/bio-GNV fueling stations, geothermal and renewable heat networks, biomethane units, and solar projects — through its subsidiary Sigeif Mobilités and its technological experimentation program.
Is Sigeif a public or private company?
Sigeif is a private company. It is classified as state government owned and is currently operating.
When was Sigeif founded?
Sigeif was founded in 1904. It employs 11 to 50 people.
Where is Sigeif based?
Sigeif is headquartered in Paris, France, in the Europe region.
How does Sigeif make money?
Three revenue lines are on record. Public Service Organization - No Commercial Revenue is the primary driver. The others are group Purchasing Coordination Fees and fonds Île-de-France Décarbonation Investment.
Who are Sigeif's main competitors?
Others on record are ADEME and FNCCR. Broad incumbents are ENGIE, GRDF and Enedis. Direct peers are SDESM, SEY 78, SEDIF and SIPPEREC. Hérault Énergie is listed as a regional player.
Does Sigeif have an API?
No public API is recorded for Sigeif.
What industry is Sigeif in?
Sigeif's product category is Public Energy Distribution Management. Its primary akta.pro industry code is EUAFAHAL, DER Financing, Contracting & Program Management (PPAs, Shared Savings, Performance), with a secondary code of EUAAADAA, Regulated Natural Gas Utility (LDC) Customer Acquisition & Switching. Its NAICS code is 22121 and its SIC code is 4900.