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VoltStorage

Energy · Munich, Germany · Founded 2016

Develops and produces solar power storage systems based on the ecological Vanadium Redox Flow (VRF) technology MoreLess

VoltStorage is a Munich-based startup that specializes in the development of innovative battery solutions. The company's mission is to make renewable energy available 24/7, addressing the challenge of supply gaps during periods of low wind or sunlight. Their battery solutions are designed to be resource-efficient, cost-effective, and environmentally friendly, contributing to a greener future.

VoltStorage's primary clients are likely to be those in the renewable energy sector, including wind and solar energy providers, who need reliable and affordable energy storage solutions. The company operates in the global energy market, which is increasingly shifting towards renewable sources.

The company's business model revolves around the development and sale of their battery storage solutions. They make money by selling these batteries to energy providers and possibly also to large energy consumers.

VoltStorage's batteries use Redox-Flow storage technology, which is particularly environmentally friendly. This technology is characterized by high operational reliability and longevity, does not require rare earths or conflict raw materials, and is fully recyclable. The batteries are also safe, with a storage medium made up of non-flammable components, and flexible, with power and capacity that can be scaled independently.

In summary, VoltStorage is a forward-thinking company that is contributing to the renewable energy revolution by providing efficient, sustainable, and cost-effective battery storage solutions.

Keywords: Renewable Energy, Battery Storage, Redox-Flow Technology, Resource-Efficient, Cost-Effective, Environmentally Friendly, Operational Reliability, Longevity, Fully Recyclable, Non-Flammable.

Company overview

VoltStorage company information

The essential company record, classifications and operating signals in one place.

Status
Acquired
Founded
2016
Headquarters
Munich, Germany
Employees
16
Open positions
None listed
Dealroom signal
62.0
client focusb2btechnologyHardwaretechnologyDeep Techsub industryClean Energysub industryEnergy Providerssub industryEnergy Storagebusiness modelManufacturingsectorSolar EnergysectorBatterysectorSpinoutsectorSustainable Development GoalssectorClimate TechsectorStationary Energy StoragesectorNovel Energy

Valuation & funding

VoltStorage funding history

Company financing events and reported valuations.

Deal typeDateAmountValuationInvestorsSource
ACQUISITIONExit Feb 2026 $0 ESS
DEBTDebt Jul 2023 $33M European Investment Bank
LATE VCEquity / VC Jul 2022 $26M $106M Cummins
SERIES AEquity / VC Aug 2021 $5M $20M Bayern Kapital · Korys · InnoEnergy · SOSV
EARLY VCEquity / VC Jul 2020 $6.6M $26M Bayern Kapital · Korys · InnoEnergy · SOSV
CONVERTIBLEEquity / VC Feb 2020 Hax · SOSV
SEEDEquity / VC Oct 2019 Wiwin
GRANTOther financing Jan 2019 EIT Climate KIC
SEEDEquity / VC Sep 2018 SOSV · Hax
GRANTOther financing Mar 2018 European Innovation Council
Showing 10 recorded eventsUnlock the complete deal history →

Financials

Revenue, earnings and profit over time

Reported history and available estimates. Estimated years are marked “E”; sparse fields are left blank rather than inferred.

YearRevenueGrowthEBITDAMarginProfitMargin
2026 $7K 0% −$5M -76120.3% −$8.1M -122209.8%
2025 $7K 0% −$5M -76120.3% −$8.1M -122209.8%
2024 $7K 0% −$5M -76120.3% −$8.1M -122209.8%
2023 $7K 0% −$5M -76120.3%
2022 $7K -99% −$5M -76120.3%
2021 $637K -71% −$5M -787.7%
2020 $2.2M −$3.5M -157.1%
Company filings, research estimates and Dealroom dataOpen the full financial model →

Growth signals

VoltStorage website traffic

Latest recorded traffic for VoltStorage is 1.5K monthly website visits, down 46.4% over the last three months. VoltStorage's team declined 69.8% over the past year.

Latest monthly visits1.5K 3-month web change-46.4% 1-year team growth-69.8%
Monthly website visits107 observations · Dec 2016–Nov 2025
Hover or focus a point to see its exact monthly valueCompare with peers →

Comparisons

VoltStorage compared with similar companies

Dealroom’s weighted taxonomy model identifies the closest operating peers. Company identity and context stay open; selected comparison metrics preview what is available in the platform.

CompanyHeadquartersStatusEmployeesTotal fundingValuation
VolterionDevelops and manufactures redox-flow battery stacks and systems for commercial bulk energy storage of renewable energy sources at lowest cost of storage Dortmund, Germany Operational 16 $18M $44M
AltrisDevelops a new sodium-ion battery cathode material that is made entirely of abundant and environmental materials Uppsala kommun, Sweden Operational
NAWAHInnovative, economically competitive, reliable and environmentally friendly Ultra-Fast Carbon battery and applied nanotechnology Voiron, France Closed
EnerpolyA next-generation energy storage technology company pioneering rechargeable zinc-ion battery chemistry Sigtuna kommun, Sweden Operational
Skeleton TechnologiesGlobal technology leader in supercapacitor energy storage, enabling electrification and reducing CO2 emissions Tallinn, Estonia Operational
AquaBatteryAquaBattery's patented membrane stack technology uses seawater for energy storage and discharge. The company's aim is the growth of renewable energy technologies and stop the use of toxic materials Alphen aan den Rijn, Netherlands Operational
ElestorElestor provides a cost-effective large-scale stationary electricity storage solution (LDES) based on flow battery technology, using low-cost materials and patented design Arnhem, Netherlands Operational
SylfenRendering decentralized renewable energy productions reliable, thanks to hydrogen storage Le Cheylas, France Operational
Showing 8 of the closest matchesCompare every metric →

Talent graph

VoltStorage's talent

Book a demo to see the people
Team profiled 14 named & role-tagged
Founders Hidden — book a demo/100 quality score
Key operators 5 quality Hidden — book a demo/100
Potential founders Hidden — book a demo likely future founders
Startup mafia Hidden — book a demo alumni-founded startups
Talent movements Hidden — book a demo in · Hidden — book a demo out past 12 months

Source: Dealroom Talent Intelligence.

Investors

17 investors on VoltStorage's cap table

Sourced from Dealroom's funding and investor records. Investor profile links are shown where available.

Seed 6 investors entered at this stage
SOSV
Hax
Smart Energy Innovationsfonds
European Innovation Council
EIT Climate KIC
Wiwin
Series A 4 investors entered at this stage
Bayern Kapital
Korys
InnoEnergy
Matthias Willenbacher
Series B+ 2 investors entered at this stage
Cummins
European Investment Bank
Other known 5 additional known investors
ESS
Technical University Munich
Kopa Ventures
LMU Entrepreneurship Center
Unreasonable Group

Global footprint

Where VoltStorage has talent and traffic

Workforce by country
1 countries with
team presence
🇩🇪 Germany92.9%
1 country shown

In the news

Latest news about VoltStorage

Recent press, funding announcements, and product moves mentioning VoltStorage — open to read from the original sources.

See all news

Market sentiment

What the market is saying about VoltStorage

An AI-synthesized read of the highest-engagement posts about VoltStorage on X over the past 7 days. We rank by likes & retweets, ignore corporate channels, and surface the themes that broke out from real people.

Reading the room on X — pulling top posts and synthesizing themes…

Source: X recent search ranked by engagement (likes + retweets) · Synthesis by Claude · Cached for 1 hour

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