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RheEnergise

RheEnergise

Private
LondonEnergy & Sustainabilityhttps://www.rheenergise.com/

Last Round

Seed Round

Apr 7, 2026

Est. Valuation

$31.56M

Total Funding Raised

$19.8M

Momentum

Top 50%

of companies Caplight tracks

Company Overview

RheEnergise is an energy storage company that has developed a long-duration energy storage solution called High-Density Hydro™, which uses a fluid 2.5 times denser than water to generate electricity from small hills.

Sector

Energy & Sustainability

Verticals

Energy Storage, Renewable Energy, Smart Grid

Business Model

B2B

Customer Profile

Services & Consulting, Hardware Sales, Revenue Share

AI Layer

Non-AI

Keywords

long-duration energy storageLDESpumped hydro storagehigh-density hydroenergy storage technologygrid balancingrenewable energy integrationgrid stabilityenergy storage infrastructurepumped hydroenergy storage fluidutility-scale storageclean energy techenergy storage solutions

Historical Pricing

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Caplight Momentum Score

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RheEnergise Comps

Public and private peers based on sector, stage, and business model.

RheEnergise comps — public and private peers by sector, stage, and business model
CompanyStatusEst. ValuationRev Multiple
OpenAIPrivate$86.0B~40x
CoherePrivate$5.0B--
Competitor 1Public$XX.XBXXx
Competitor 2Public$XX.XBXXx

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RheEnergise Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Seed RoundApr 7, 2026
Convertible DebtJan 23, 2026
CrowdfundingNov 1, 2025
GrantJul 2, 2025
CrowdfundingOct 25, 2024
Seed
Feb 12, 2024

Key People

Founding team and executive leadership

Tamás Bertényi

Chief Technology Officer, Co-Founder

Founding Team

RheEnergise Investors

Notable investors and investment history

Market signals

Structured signals derived from secondary market and firmographic data.

  • Apr 7, 2026

    $158K Seed Round raised.

  • Nov 1, 2025

    Raised $2M in a crowdfunding round.

RheEnergise Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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RheEnergise Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about RheEnergise's valuation, stock price, and market status.

Firmographic Details

HeadquartersLondon
Employee Range40
Year Founded2019
Last FundingApr 7, 2026

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