Wingas

What Wingas does

SEFE Energy GmbH (formerly WINGAS) is a European energy supply and infrastructure company headquartered in Kassel, Germany, and operating as a wholly-owned subsidiary of SEFE Group, a federally-owned German energy company following the 2022 transfer of ownership from Gazprom to the Bundesrepublik Deutschland. The company supplies natural gas, electricity, hydrogen, and biomethane to municipal utilities (Stadtwerke), energy-intensive industrial customers, power plant operators, and gas traders across Germany, Belgium, the Netherlands, the United Kingdom, and France, distributing more than 200 TWh annually to a customer base exceeding 50,000 accounts.

The core technology stack combines physical energy supply infrastructure — long-term gas and electricity procurement, trading, transport, and storage — with a parallel digital infrastructure asset: an approximately 8,500 kilometer fiber optic network operated since 1996 under the SEFE Fiber brand, providing dark fiber for highest data security, technical rental spaces, and broadband connections to companies, municipal utilities, and telecommunications providers. The company also offers a digital Kundenportal for nominations and account management and a REMIT portal for regulatory compliance.

The business model is enterprise B2B with subscription/recurring revenue characteristics built on long-term supply contracts. Go-to-market relies on direct enterprise field sales, a dedicated Sales Desk, and digital self-serve channels targeting municipal utilities and industrial customers from the Kassel headquarters. Pricing is quote-based and negotiated individually per customer based on volume and contract terms; pricing is not publicly disclosed. Revenue streams span gas supply and trading, electricity trading, hydrogen partnerships, biomethane supply, and dark fiber infrastructure services.

Name

Wingas

Legal name

SEFE Energy GmbH

Website

https://wingas.com

Company type

Private

Founded year

1993

Operating status

Operating

Headcount range

251–500 employees

Short description

SEFE Energy GmbH (formerly Wingas) is a Kassel-headquartered, federally-owned European energy supplier that distributes 200+ TWh annually of gas, electricity, hydrogen, and biomethane to 50,000+ municipal utilities and industrial customers across five countries, and operates an 8,500 km fiber optic network.

Ownership category

akta.pro rank

Product category

Energy Supply and Trading

NAICS

Electric Power Generation, Transmission and Distribution (2211)

SIC

Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

C&I Multi-Site & Cross-Border Supply (Portfolio/Meter Management) (EUAGACAK)

Keywords

• Natural gas supply
• Electricity trading
• Dark fiber infrastructure
• Biomethane distribution
• Hydrogen solutions

Headquarters

HQ city

Kassel

HQ country

Germany

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Gas Supply and Trading: SEFE Energy supplies customized natural gas solutions to industrial companies, power plant operators, municipal utilities (Stadtwerke), and gas traders. They provide reliable, flexible, and efficient supply with extensive market knowledge.
2. Electricity Supply and Trading: Active in electricity trading offering standard trading products in the German market. Building portfolio to provide long-term and reliable energy partnerships.
3. Hydrogen Solutions: Creating connections between production centers and industrial sites, developing partnerships worldwide to make low-carbon hydrogen available at industrial scale.
4. Biomethane Supply: Europe-wide available biomethane as immediately deployable, climate-friendly energy source with flexible procurement options and long-term trading expertise.
5. Dark Fiber Infrastructure: Fiber optic network services including dark fiber for highest data security, technical rental spaces, and broadband connections for companies, municipal utilities, and telecom providers.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels5 records

Core offering

SEFE Energy GmbH (formerly WINGAS) supplies tailored natural gas, electricity, biomethane, and low-carbon hydrogen solutions to industrial companies, power plant operators, municipal utilities (Stadtwerke), and gas traders across Europe. The company also operates an approximately 8,500 km fiber optic network offering dark fiber, technical rental space, and broadband connectivity solutions to enterprises, municipal utilities, and telecommunications providers. Supply is delivered primarily from the Kassel headquarters to customers in Germany, Belgium, and the Netherlands.

Product overview

SEFE Energy (formerly Wingas) is a European energy company offering a diversified portfolio of energy products and digital infrastructure services. The core offering includes natural gas, electricity, hydrogen, and biomethane for industrial customers, municipal utilities, and power plant operators. Additionally, the company provides dark fiber solutions through an 8,500 km fiber-optic network operated since 1996. The products are designed to support businesses in achieving their energy transition and decarbonization goals through a single supply partner across Europe.

Differentiator

Problem solved

Functional benefit

Brands

• SEFE Fiber: Dark fibre infrastructure offering — bundesweite Glasfaserlösungen (nationwide fiber solutions) leveraging a ~8,500 km lightwave conductor network.

Products and services

• Gas (Erdgas) Tailored natural gas solutions for industrial companies, power plant operators, municipal utilities (Stadtwerke), and gas traders, providing secure, flexible, and efficient supply with market expertise.
• Strom (Electricity) Electricity trading offering access to standard trading products in the German market, with plans to expand the portfolio for greater flexibility and selection in long-term energy partnerships.
• Wasserstoff (Hydrogen) Low-carbon hydrogen solutions that connect production centers with industrial sites, developing global partnerships to make carbon-neutral hydrogen available at industrial scale for sustainable value chains.
• Biomethan (Biomethane) Europe-wide available biomethane as an immediately deployable, climate-friendly energy source with flexible procurement options and long-term trading expertise that ensures high supply security and planning reliability.
• Dark Fibre Fiber optic network services providing dark fiber for highest data security, technical rental spaces with modern infrastructure, and broadband connections for underserved regions; built on a nationwide ~8,500 km lightwave conductor network operated since 1996 and offered via the SEFE Fiber sub-brand.

Quantifiable outcome

• Over 50,000 customers served across Europe
• +2 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Partnerships

Two partnerships are on record, tiered core and minor.

• SEFE GroupcoreOthersSEFE Energy GmbH is part of SEFE Group (Securing Energy for Europe), an internationally active, Europe-anchored energy company. SEFE operates along the entire energy value chain from procurement and trading to sales, transport, and storage. SEFE Group is a federal (government-owned) company.
• EcoVadisminorOthersEcoVadis sustainability rating displayed on SEFE Energy website, indicating commitment to environmental and social responsibility standards.

Scale indicators5 records

Recent moves7 records

Expansion highlights5 records

Direct peers

• Vattenfall AB: Swedish state-owned utility with substantial German operations supplying gas, electricity, and heat to industrial and municipal customers across Northern Europe — comparable state-owned model and B2B energy supply profile.
• E.ON SE: Major German-headquartered European energy company serving industrial, commercial, and municipal customers with electricity, gas, and increasingly distributed energy and heat solutions — directly comparable customer base and multi-country footprint.
• RWE AG: One of Europe's largest utilities headquartered in Germany, active across electricity generation, gas supply, and increasingly renewables/hydrogen, with overlapping industrial and municipal utility customers in Germany and broader Europe.
• Uniper SE: Major German energy company also nationalized following the Gazprom exit and placed under federal ownership, with overlapping industrial gas and electricity supply activities, similar customer base of municipal utilities and industrial customers, and comparable post-Gazprom transition challenges.
• EnBW Energie Baden-Württemberg: German state-linked utility supplying gas, electricity, and increasingly hydrogen/renewables to industrial and municipal customers across southern Germany and broader Europe — overlapping product portfolio and customer base.

Emerging players

• Statkraft AS: Norwegian state-owned renewable energy generator and supplier increasingly active in European industrial power supply and green hydrogen — relevant comparable as state-owned European energy supplier pivoting toward transition products.

Broad incumbents

• Shell Energy Europe: European B2B energy supply and trading arm of Shell, serving industrial, commercial, and municipal customers across the same geographies with gas, power, and increasingly low-carbon products — comparable customer segments and energy trading model.
• TotalEnergies SE: Integrated global energy major with substantial European gas, power, and biomethane/hydrogen activities serving industrial customers across Germany, Belgium, Netherlands, France, and the UK — directly overlapping geographies and product portfolio.
• EDF (Électricité de France): French state-owned integrated energy major with generation, supply, and increasingly hydrogen activities, serving industrial and municipal customers across France and parts of Europe — overlapping state-ownership profile and energy supply breadth.

Regional players

• Eneco NV: Dutch-headquartered energy supplier serving industrial and commercial customers in the Netherlands with gas, electricity, heat, and increasingly hydrogen/sustainable solutions — directly comparable customer base in one of SEFE Energy's core geographies.

Market position

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sefe-energy-gmbh

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Wingas