Ostrom
Ostrom is a Berlin-based digital green electricity provider serving German residential and small commercial customers with variable, dynamic, and fixed green energy tariffs, anchored by its NeoGrid AI virtual power plant that aggregates EV batteries and smart home devices for intraday trading and grid balancing.
- Company typePrivate
- Founded2020
- HeadquartersBerlin, Germany
- Headcount11–50
- GTM typeB2C
- OfferingServices
What Ostrom does
Ostrom is a Berlin-based digital green electricity provider operating in Germany, founded in 2020/2021. The company sells green electricity to residential consumers and small commercial customers through three core tariff products: SimplyFair (variable pricing tracking monthly wholesale market rates), SimplyDynamic (hourly pricing based on EPEX Spot day-ahead market data via smart meter), and SimplyFix (12 or 24-month fixed pricing). The underlying differentiator is NeoGrid AI, the first electric vehicle virtual power plant in Germany, which aggregates EV batteries and smart home devices to trade flexibility on the intraday electricity market, with profits shared back to participants as credits.
The platform architecture integrates with over 1,400 smart home devices — including 46 EV brands, 17 charger brands, 19 HVAC brands, and 24 solar inverter brands — via open APIs accessible through a Developer Portal. Customers interact with the company entirely through a digital self-serve channel: a 5-minute online signup, iOS/Android app for consumption tracking, device control, and meter submission, and an online store for hardware. Ostrom operates a cost-plus business model where wholesale electricity prices are passed through to customers, with a flat €6 monthly base fee covering service, billing, and procurement; VPP trading revenue and hardware margins represent secondary income streams.
Ostrom serves German consumers with English-language support, with a strategic focus on EV owners, heat pump users, and solar/storage households. It has grown to over 100,000 customers (tripled in 2024) and has raised over €40 million across seed, Series A, and a €20M Series B (Feb 2026, led by Eneco Ventures). Key backers include Union Square Ventures, SE Ventures, 468 Capital, Adjacent, and Eneco Ventures. The company has 27 grid operator partnerships, a co-developed bundle with Schneider Electric (HEMS Bundle), and holds certifications including B Corp and VdTÜV green electricity standard.
Ostrom firmographics
Firmographics- Name
- Ostrom
- Legal name
- Ostrom GmbH
- Website
- https://ostrom.de
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Ostrom is a Berlin-based digital green electricity provider serving German residential and small commercial customers with variable, dynamic, and fixed green energy tariffs, anchored by its NeoGrid AI virtual power plant that aggregates EV batteries and smart home devices for intraday trading and grid balancing.
- Ownership category
- akta.pro rank
Ostrom industry classification
Industry- Product category
- Digital Green Energy Supply
- NAICS
- Electric Power Generation, Transmission and Distribution (2211), Electric Power Transmission, Control, and Distribution (22112)
- SIC
- Instruments For Meas & Testing Of Electricity & Elec Signals (3825)
- akta.pro primary industry
- Auto-Switching & Price Comparison Platforms (EUAGAEAD)
- akta.pro secondary industry
- EV Charging Infrastructure IoT & Smart Charging (V1G/V2G) (EUADAPAH)
Keywords
Where Ostrom is headquartered
LocationHeadquarters
- HQ city
- Berlin
- HQ country
- Germany
- HQ region
- Europe
Offices1 record
Markets served
Ostrom business model
Business model- GTM type
- B2C
- Offering type
- Services
- Cost components
- Operations, Technology or R&D, Personnel, Marketing or Sales, Infrastructure
Revenue model
- Electricity Supply - SimplyFair Tariff: Variable electricity tariff where customers pay market price plus €6 monthly base fee. Prices track wholesale market rates monthly. Revenue derives from base fee and margin on electricity consumption.
- Electricity Supply - SimplyDynamic Tariff: Dynamic tariff with hourly pricing based on EPEX Spot day-ahead market. Passes through spot market price plus grid fees, taxes, levies, and Ostrom service fee. Requires smart meter.
- Electricity Supply - Fixed Tariff (SimplyFair 12/24): Fixed electricity tariff for 12 or 24 months with locked-in price. Provides price certainty for customers preferring predictable billing.
- NeoGrid VPP Trading Revenue: Intraday electricity trading optimization through virtual power plant. Profits from trading flexibility are shared with participants as credits to Ostrom Wallet.
- Ostrom Store - Hardware Sales: Online store selling energy-related products including EV chargers, smart thermostats, solar equipment, and smart home devices. Partners can promote products in store and newsletter.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Monthly | SimplyFair variable tariff with monthly market-based pricing |
| Subscription | Multi-year contract | SimplyFair fixed tariff with 12 or 24 month price lock |
| Usage-based | Pay-as-you-go | SimplyDynamic hourly pricing with smart meter |
Go-to-market motion1 record
Distribution channels4 records
Marketing channels6 records
Ostrom product offering
Product offeringCore offering
Ostrom is a digital green electricity provider that supplies 100% certified green electricity to German households and small businesses through variable (SimplyFair), hourly-priced dynamic (SimplyDynamic), and fixed (SimplyFix) tariff products, with a flat €6 monthly base fee and pass-through wholesale market pricing. Its differentiating capability is the NeoGrid AI virtual power plant, which aggregates EV batteries, heat pumps, solar systems, and smart home devices to optimize charging against EPEX Spot intraday prices and earn trading revenue shared with customers. Customers manage everything through the Ostrom App, which integrates with 1,400+ smart devices from 46+ EV brands, 17+ charger brands, 19+ HVAC brands, and 24+ solar inverter brands.
Product overview
Ostrom is a digital green electricity provider offering a platform-based product portfolio centered on AI-driven energy management. The core offering consists of three tariff products: SimplyFair (variable pricing tracking monthly market rates), SimplyDynamic (dynamic hourly pricing via smart meter integration), and SimplyFix (12/24-month fixed pricing). The platform is anchored by NeoGrid AI, the company's virtual power plant that aggregates EV batteries for grid balancing and intraday trading optimization. Customers access the platform through the Ostrom App, which integrates with 1,400+ smart devices including 46 EV brands, 17 EV charger brands, 19 HVAC brands, and 24 solar inverter brands. Additional modules include Smart EV Charging, Smart HVAC, Solar PV Integration, Battery Storage Integration, Smart Meter services, Commercial Electricity, and an Ostrom Store. The Developer Portal provides open APIs for partner integrations, while the Schneider Electric HEMS Bundle extends the platform's home energy management capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- NeoGrid® AI: AI-driven virtual power plant platform that aggregates EV batteries and home devices for grid balancing and intraday trading optimization.
Products and services
- SimplyFair (Variable Tariff) Transparent variable electricity tariff that tracks monthly wholesale market prices. Customers pay market price plus a flat €6 monthly base fee, with monthly flexible cancellation and no hidden markups. Energy prices have been decreased seven times in the last two years.
- SimplyDynamic (Dynamic Tariff) Smart-meter compatible dynamic tariff with hourly pricing based on EPEX Spot day-ahead market prices. Enables customers to charge EVs, run heat pumps, and consume electricity when renewable energy is abundant and prices are lowest, potentially saving up to 35% on annual costs. Requires smart meter installation.
- SimplyFix (Fixed Tariff) Fixed electricity tariff with 12 or 24-month contract periods providing locked-in price certainty for customers who prefer predictable billing over variable or dynamic pricing. Includes the flat €6 monthly base fee.
- NeoGrid AI Virtual Power Plant AI-driven virtual power plant that aggregates EV batteries, heat pumps, solar systems, and other flexible devices through software to form a unified power plant. Optimizes charging against day-ahead and intraday EPEX Spot market prices and enables customers to earn up to €300 per year through shared flexibility trading revenue credited to their Ostrom Wallet.
- Ostrom App Central iOS and Android application for managing Ostrom electricity contracts, tracking real-time consumption, submitting meter readings, controlling 1,400+ integrated smart devices (EVs, chargers, heat pumps, solar, batteries), managing payments, and participating in NeoGrid VPP. Includes demo mode accessible before signup.
- Commercial Electricity (Gewerbestrom) Electricity supply services tailored for commercial and business customers in Germany, offering the same dynamic, variable, and fixed tariff options as residential plans with business-oriented billing flexibility.
- Ostrom Store Online e-commerce storefront at store.ostrom.de selling energy-related smart home products including EV chargers, smart thermostats, solar equipment, and compatible devices. Ostrom customers receive additional discounts, and partner companies can promote products through the store and newsletter.
- Ostrom Developer Portal API Open API access for customers and partners to integrate Ostrom functionality, energy data, and VPP services into their own applications, enabling native partner app integration, data manipulation, and enhanced customer engagement.
- Schneider Electric HEMS Bundle Joint bundle with Schneider Electric combining the HEMSlogic Home Energy Management System (HEMSlogic Gateway & App) with Ostrom's dynamic SimplyDynamic tariff for comprehensive home energy optimization, potentially saving customers up to €730 per year.
Quantifiable outcome
- Reduce electricity costs by up to 35%
- +3 more outcomes
Companies that use Ostrom
Customer profileNamed customers8 records
Segments3 records
Ideal customer profiles4 records
Ostrom technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
AI capability2 records
Feature3 records
Ostrom partnerships and signals
Strategic signalPartnerships
19 partnerships are on record, tiered core and minor.
- Schneider ElectriccoreJoint HEMS bundle offering combining Schneider's HEMSlogic home energy management system with Ostrom's dynamic tariff. Enables partners to offer complete energy solutions.
- EPEX Spot SEcoreEuropean power exchange for short-term electricity trading. Ostrom passes through day-ahead market prices to customers with dynamic tariff.
- Grid Operator Partners (27 networks)corePartnerships with German grid operators including ED Netze, Badenova Netze, Netze BW, Westnetz, EWE Netz, Stromnetz Hamburg, and 21 others for smart meter integration and data exchange.
- VamominorPartner company promoting Ostrom services to their customer base.
- AiraminorHeat pump company partnership for bundled energy solutions.
- SolyminorSolar company partnership for integrated energy solutions.
- VaillantminorHeat pump and HVAC manufacturer partnership.
- OtovominorSolar panel installer partnership for bundled offerings.
- CalosolminorPartner company in energy sector.
- ZaptecminorEV charger manufacturer partnership for compatible products in Ostrom Store.
- HaierminorSmart home appliance manufacturer with hOn app integration.
- InfraPowerminorInfrastructure partner.
- ViessmannminorHeat pump and HVAC manufacturer partnership.
- EnergieVersumminorEnergy solutions partner.
- MPGsolarminorSolar products partner.
- E3/DCminorBattery storage and charging solutions partner.
- BullfinchminorEnergy fintech partner.
- Energy Hub AllianceminorEnergy hub alliance member for industry collaboration.
- N26minorDigital bank partnership for potential financial services integration.
Scale indicators5 records
Expansion highlights5 records
Ostrom competitors and assessment
Company assessmentDirect peers
- Tibber: Norwegian digital energy retailer operating in Germany and other European markets with dynamic hourly pricing, app-first customer experience, and smart home/EV charging integration. Closest direct competitor to Ostrom's dynamic tariff and device-integration model.
- Octopus Energy: UK-headquartered global energy retailer with active operations in Germany (Octopus Energy Germany) offering dynamic tariffs, EV-friendly plans, and Kraken-powered digital platform. Direct competitor in dynamic pricing and smart integrations in the German market.
- Rabot Energy: German digital energy startup offering dynamic hourly tariffs tied to EPEX Spot and an app-first customer experience. Closely comparable in product, target customer, and dynamic pricing model to Ostrom's SimplyDynamic.
- Lichtblick: One of Germany's largest independent green energy providers with its own virtual power plant (ZuhauseKraftwerk) aggregating home batteries, EVs, and heat pumps. Comparable as a German green energy provider with VPP aggregation.
Broad incumbents
- EnBW (aWATTar): Major German utility that acquired aWATTar, an early dynamic-tariff pioneer. EnBW offers dynamic pricing at scale and competes directly with Ostrom in Germany with much larger balance sheet and customer base.
- E.ON: One of Europe's largest utilities with German retail electricity supply, EV charging infrastructure, and emerging dynamic tariff products. Incumbent competitor with broader portfolio than Ostrom.
- Sonnen (Shell): German home battery manufacturer acquired by Shell operating a residential VPP aggregating home batteries for grid services. Comparable in German home energy storage and VPP aggregation; broader incumbent post-acquisition.
- Vattenfall: Major European utility with German retail electricity supply and active investment in dynamic tariffs, EV charging, and renewable generation. Comparable as a broad incumbent offering competing green and dynamic-tariff products in Germany.
Emerging players
- 1Komma5°: Berlin-based climate tech startup focused on home energy installations (heat pumps, solar, EV chargers) with energy management software. Comparable as a Germany-focused home energy/smart device ecosystem player with capital intensity and partnership-driven growth.
Others
- Next Kraftwerke: German virtual power plant operator aggregating distributed energy resources (biogas, solar, batteries) for wholesale and balancing markets. Comparable as a German VPP operator but focused on industrial-scale rather than residential EV aggregation.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Ostrom social profiles
Digital presenceOstrom financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ostrom leadership team
Management profileNumber of profiles
Profiles2 records
Ostrom funding detail
Funding detailFunding overview
Funding rounds5 records
Investors8 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ostrom 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 Ostrom
What does Ostrom do?
Ostrom is a digital green electricity provider that supplies 100% certified green electricity to German households and small businesses through variable (SimplyFair), hourly-priced dynamic (SimplyDynamic), and fixed (SimplyFix) tariff products, with a flat €6 monthly base fee and pass-through wholesale market pricing. Its differentiating capability is the NeoGrid AI virtual power plant, which aggregates EV batteries, heat pumps, solar systems, and smart home devices to optimize charging against EPEX Spot intraday prices and earn trading revenue shared with customers. Customers manage everything through the Ostrom App, which integrates with 1,400+ smart devices from 46+ EV brands, 17+ charger brands, 19+ HVAC brands, and 24+ solar inverter brands.
Is Ostrom a public or private company?
Ostrom is a private company. It is classified as venture growth investor backed and is currently operating.
When was Ostrom founded?
Ostrom was founded in 2020. It employs 11 to 50 people.
Where is Ostrom based?
Ostrom is headquartered in Berlin, Germany, in the Europe region.
How does Ostrom make money?
Five revenue lines are on record. Electricity Supply - SimplyFair Tariff is the primary driver. The others are electricity Supply - SimplyDynamic Tariff, electricity Supply - Fixed Tariff (SimplyFair 12/24), neoGrid VPP Trading Revenue and ostrom Store - Hardware Sales.
Who are Ostrom's main competitors?
Direct peers on record are Tibber, Octopus Energy, Rabot Energy and Lichtblick. Broad incumbents are EnBW (aWATTar), E.ON, Sonnen (Shell) and Vattenfall. 1Komma5° is listed as an emerging player. Next Kraftwerke is listed as an others.
Does Ostrom have an API?
Yes. Ostrom's Developer Portal allows customers and partners to access data through open APIs. The full functionality of the Ostrom APIs can be integrated into partner apps, enabling native partner app integration and strengthening customer engagement and interaction possibilities. Customers and partners can access and manipulate data in the platform. Developer documentation is at docs.ostrom-api.io/reference/introduction.
What industry is Ostrom in?
Ostrom's product category is Digital Green Energy Supply. Its primary akta.pro industry code is EUAGAEAD, Auto-Switching & Price Comparison Platforms, with a secondary code of EUADAPAH, EV Charging Infrastructure IoT & Smart Charging (V1G/V2G). Its NAICS code is 2211 and its SIC code is 3825.