STURM ENERGIE GMBH

What STURM ENERGIE GMBH does

STURM ENERGIE GmbH is a Vienna-based, family-owned private Austrian energy supplier founded and led by Nikolaus Sturm (BSc MBA) and Andreas Sturm (Mag. MSc) as managing directors (Geschäftsführer). The company supplies 100% renewable electricity (Grünstrom) sourced from wind and solar, 100% CO2-neutral natural gas (Klimaneutrales Gas) with emissions offset through certified climate protection projects, and recurring metering and billing services delivered via its affiliated STURM MESSDIENSTE GmbH, to more than 20,000 private and commercial customers across Austria. Distribution is direct, combining a website-based tariff calculator, phone and email inside sales, and enterprise channels into the Austrian real estate industry supported by memberships in ÖVI, FIABCI, ARGE Eigenheim, and ÖGNI.

The company's core technology is a remote-readable smart metering infrastructure capturing quarter-hourly consumption data across electricity, gas, district heating, and ancillary sensors, feeding two customer-facing digital products: the Kundenportal for contract and account management, and the Energy-Expert-Portal for real-time consumption monitoring, energy flow analysis, and CO2 footprint reduction. Building on this data layer, STURM ENERGIE offers differentiated services including 15-minute water meter monitoring with anomaly alerting (Wasserdichtheitsprüfung), customized building energy efficiency strategies for ESG compliance and certification preparation, and photovoltaic feed-in contracts for solar producers. Three electricity/gas tariffs — Einfach.Klassisch (stable, no binding), Einfach.Vernünftig (balanced), and Einfach.Smart (dynamic, linked to real quarter-hourly spot prices) — share a transparent pricing structure of consumption price (Cent/kWh) plus base price (Euro/year) with publicly disclosed rates.

Revenue is generated through usage-based electricity and gas supply and recurring measurement/billing services, with a sample Flexibel tariff priced at €56.85/month (€682/year), 16.28 Cent/kWh consumption and €22.97/year base price over a 12-month binding. The operating model is highly asset-light, with only 6 total employees reported, implying that supply, metering logistics, and back-office functions are largely outsourced or automated. Strategic positioning emphasizes the combination of supply and energy services — explicitly marketed as the only private Austrian energy supplier doing so — alongside family-business "Handschlagqualität" personal service and Austria-wide sustainability credentials (Kununu Top Company 2026).

Name

STURM ENERGIE GMBH

Legal name

STURM ENERGIE GmbH

Website

https://sturmenergie.at

Company type

Private

Operating status

Operating

Headcount range

1–10 employees

Short description

STURM ENERGIE GmbH is a Vienna-based, family-owned Austrian energy supplier serving 20,000+ private households, businesses, and real estate customers with 100% renewable electricity, CO2-neutral gas, smart metering, and complementary energy efficiency and ESG services.

Ownership category

akta.pro rank

Product category

Retail Energy Supply

NAICS

Electric Power Generation, Transmission and Distribution (2211), Steam and Air-Conditioning Supply (221330)

SIC

Natural Gas Transmisison & Distribution (4923)

akta.pro primary industry

Service Renewals, Relocations & Upgrades (Capacity/Pressure Changes) (EUAJACAB)

akta.pro secondary industry

Meter, Regulator & Pressure-Reducing Station Maintenance (EUAJAMAD)

Keywords

• Renewable electricity supply
• Natural gas supply
• Smart metering services
• Building energy efficiency
• Energy monitoring solutions

Headquarters

HQ city

Vienna

HQ country

Austria

HQ region

Europe

Offices2 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

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

Revenue model

1. Electricity Supply (Grünstrom): Supply of 100% renewable electricity from wind and solar power to private and commercial customers throughout Austria. Revenue generated through consumption-based pricing with energy prices and network fees.
2. Gas Supply (Klimaneutrales Gas): Supply of 100% CO2-neutral natural gas with emissions compensated through certified climate protection projects. Revenue generated through consumption-based pricing.
3. Measurement Services (Messdienstleistungen): Comprehensive metering and billing services for heating, cooling, hot and cold water consumption in properties. Includes meter installation, precise data capture, transparent billing, and digital delivery through the Energy-Expert-Portal. Services provided by affiliated company STURM MESSDIENSTE.

Pricing tiers

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

STURM ENERGIE supplies 100% renewable electricity (Grünstrom from wind and solar) and 100% CO2-neutral natural gas to over 20,000 private and commercial customers throughout Austria under transparent tariffs (Einfach.Klassisch., Einfach.Vernünftig., Einfach.Smart.). Alongside supply, it delivers complementary building-focused energy services including smart metering and heat/water cost allocation, quarter-hourly energy monitoring, 15-minute water meter monitoring for leak detection, and customized energy efficiency strategies for ESG compliance and building certification, primarily targeting the real estate industry via the affiliate STURM MESSDIENSTE.

Product overview

STURM ENERGIE is a transparent energy supplier offering sustainable tariffs with personal service. The product portfolio consists of two core energy products (Grünstrom and Klimaneutrales Gas), three tariff variants (Einfach. Klassisch., Einfach. Vernünftig., and Einfach. Smart.), and complementary services including metering and billing services through STURM MESSDIENSTE, energy monitoring, water leak detection, and building energy efficiency strategies. The offering is complemented by customer-facing digital services including a customer portal and the Energy-Expert-Portal for real-time consumption management. The company positions itself as the only private energy supplier that combines supply with comprehensive energy services including smart metering, energy monitoring, and ESG strategy development for buildings.

Differentiator

Problem solved

Functional benefit

Brands

• Einfach.Klassisch: A stable and fair tariff product with predictable pricing, no contract binding, and long-term fair market conditions.
• Einfach.Smart
• Einfach.Vernünftig

Products and services

• Grünstrom (Renewable Electricity) 100% renewable electricity sourced from wind and solar power, supplied to over 20,000 private and commercial customers across Austria. Guarantees climate-neutral energy supply without harmful greenhouse gases and is offered under multiple transparent tariff structures.
• Klimaneutrales Gas (Climate-Neutral Gas) 100% CO2-neutral natural gas with emissions fully compensated through certified climate protection projects such as reforestation and expansion of renewable energies in developing countries, supplied to Austrian private and commercial customers under consumption-based pricing.
• Messdienstleistungen (Metering & Building Energy Services) Comprehensive metering and billing service delivered via affiliate STURM MESSDIENSTE, covering heat cost allocation under the Heiz- und Kühlkostengesetz, tariff processing via remote-readable meters, quarter-hourly energy monitoring across electricity, gas, district heating and auxiliary sensors, 15-minute water meter leak detection, and custom building energy efficiency strategies for ESG compliance and certification. Targeted at property managers, housing cooperatives, building owners, and real estate companies.
• Photovoltaik-Anlagen Abnahmeverträge (PV Feed-In Contracts) Feed-in contract service enabling owners of photovoltaic installations to monetize self-generated solar electricity through direct purchase or professional marketing by STURM ENERGIE, with each feed-in contract linked to a corresponding purchase contract.

Quantifiable outcome

• Over 20,000 customers supplied with sustainable energy
• +3 more outcomes

Named customers9 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

Feature5 records

Partnerships

Four partnerships are on record, tiered core.

• Attensam (Hausbetreuung Attensam GmbH)coreStrategic or Co-development PartnerLong-term partnership with Austria-wide facility management company. Quality and service orientation are central to Attensam, especially with partners in direct contact with customers and managed properties. The collaboration is based on technical competence, digital innovation power, and lived handshake quality.
• PKE Holding AGcoreStrategic or Co-development PartnerInternational Austrian family company with over 2,000 employees at 63 locations in 12 countries, specializing in building and security technology and building automation. PKE values the collaboration with STURM ENERGIE based on quality, reliability, and handshake quality for implementing complex projects.
• main Technische Dienstleistung GmbHcoreStrategic or Co-development PartnerTechnical full-service provider in building technology with locations throughout Austria. Long-term and reliable partnerships are central success factors for main. The collaboration with STURM ENERGIE is based on professional exchange at eye level, fast response times, and a grown trust relationship - precise, competent, flexible.
• STURM MESSDIENSTE GmbHcoreStrategic or Co-development PartnerJoint controllers with STURM ENERGIE for data processing under GDPR Art. 26. Shared customer data management, property support, and energy service delivery. Both companies share the address Wiedner Gürtel 13, 1100 Vienna.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• NaturStrom AG: DACH-region green electricity supplier focused on 100% renewable supply, comparable in product philosophy and SME/residential target market to Sturm Energie.
• oekostrom AG: Austrian renewable electricity supplier offering green power to households and businesses, the closest direct analogue to Sturm Energie in terms of renewable-only positioning and Austrian retail focus.
• Lichtblick SE: German renewable energy retailer combining green electricity supply with smart-home/energy management services, mirroring Sturm Energie's bundling of supply, smart metering, and energy monitoring.
• ista SE: Global provider of metering and sub-billing services for the real estate industry, directly comparable to STURM MESSDIENSTE's metering/billing service line and the real estate customer overlap.
• Techem GmbH: Leading provider of heat and water metering and billing services for residential and commercial real estate, a direct peer for Sturm Energie's Messdienstleistungen product line serving property managers.

Broad incumbents

• Energie Steiermark: Styrian regional utility offering electricity, gas, and energy services, overlapping with Sturm Energie's Austrian B2B and real estate customer segments.
• EVN AG: Austrian listed utility group supplying electricity, gas, and heat across Lower Austria and beyond, a large-scale incumbent serving overlapping segments in the same regulated market.
• Wien Energie GmbH: Vienna's municipal utility offering electricity, gas, and heating to both residential and commercial customers; the dominant incumbent competing for the same Austrian customer base as Sturm Energie.
• Verbund AG: Austria's largest electricity company and leading hydropower generator with retail supply; competes broadly with Sturm Energie in the Austrian retail energy market and on renewable credentials.
• Salzburg AG: Regional Austrian utility supplying electricity, gas, and heat with renewable generation; comparable incumbent in the same single-country regulated market.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat4 records

Key risks6 records

Key highlights6 records

Customer concentration

• LinkedInlinkedin.com/company/sturm-energie-gmbh

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 STURM ENERGIE GMBH