RheEnergise

London, United Kingdom Founded: 2019 • Age: 7 yrs
High-density hydro long-duration energy storage technology is developed.
Annual revenue - Latest available
Total funding $3.3M 5 rounds
Employees - Tracked headcount
Investors 2 Known backers
Products 1 Services tracked
Competitors 11 Brand Intelligence

About RheEnergise

RheEnergise is a company based in London (United Kingdom) founded in 2019 by Graham Cook, Stephen Crosher, and Tamas Bertenyi. RheEnergise has raised $3.35 million across 5 funding rounds from investors including European Commission and Low Carbon Innovation Fund. RheEnergise offers products and services including High-Density Hydro. RheEnergise operates in a competitive market with competitors including Form Energy, Northvolt, Ambri, Verkor and VFlow Tech, among others.

  • Headquarter London, United Kingdom
  • Founders Graham Cook, Stephen Crosher, Tamas Bertenyi
  • Stage Minicorn
  • Sectors
    Energy & Utilities
  • Phone
    Locked
  • Website
    Locked
  • Social
    Locked
  • Legal Name Rheenergise Limited
  • Date of Incorporation 05 Apr, 2019
  • Jurisdiction LONDON, UNITED KINGDOM
Operational Areas
Energy & Utilities → Energy Storage & Efficiency Unlock Sub-Sector Unlock Segment
Energy & Utilities → Renewable & Clean Energy Unlock Sub-Sector Unlock Segment
Key Metrics
  • Annual Revenue
    Not available
  • Net Profit
    Not available
  • EBITDA
    Not available
  • Total Equity Funding
    $3.35 M (USD)

    in 5 rounds

  • Latest Funding Round
    $158.09 K (USD), Seed

    Dec 08, 2025

  • Investors
  • Employee Count
    Not available
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Products & Services of RheEnergise

RheEnergise offers a comprehensive portfolio of products and services, including High-Density Hydro.

Product name locked
Category locked
Primary

Pumped storage solution for long-duration renewable energy balancing.

People of RheEnergise

Headcount 10-50
Employee Profiles 14
Board Members and Advisors 2
Employee Profiles
People
Sheriza Jiwani
Junior R&D Engineer
People
Lauren Goodfellow
Operations and Finance Executive
People
Tamás Bertényi
CTO
People
Graham Cook
CFO

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Board Members and Advisors
people
Matthew Crosher
Project Design Advisor
people
Jim Campion
Chairman

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Funding Insights of RheEnergise

RheEnergise has successfully raised a total of $3.35M across 5 strategic funding rounds. The most recent funding activity was a Seed round of $158.09 thousand completed in December 2025. This substantial capital infusion reflects strong investor confidence in the company's business model, growth potential, and market opportunities. The funding enables strategic expansion, product development, market penetration, and operational scaling to drive long-term value creation and competitive advantage.

Investors in RheEnergise

RheEnergise has secured backing from 2 investors, including venture fund and institutional investors. Prominent investors backing the company include European Commission and Low Carbon Innovation Fund.

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Venture Fund
Institutional
Investor Description Founded Year Domain Location
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Institution of the European Union responsible for upholding the EU treaties
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Investor details for RheEnergise

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Investments & Acquisitions by RheEnergise

Investments
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Investment portfolio details for RheEnergise

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Financial Statements - RheEnergise

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Detailed financials for RheEnergise

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Rheenergise Comparisons

RheEnergise Primary company
Description
High-density hydro long-duration energy storage technology i...
Location
London, United Kingdom
Founded Year
2019
Annual Revenue
Not available
Net Profit
Not available
EBITDA
Not available
Employees
Not available
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Peer comparison for RheEnergise

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Competitors of RheEnergise

RheEnergise operates in a dynamic and competitive business environment, facing competition from various established players and emerging companies in the market. The competitive landscape includes prominent companies such as Form Energy, Northvolt, Ambri, Verkor and VFlow Tech, among others.

Company Name Domain Founded year HQ Location Description
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Iron-air energy storage systems are developed for renewable energy projects.
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Lithium-ion batteries for electric vehicles are manufactured and optimized.
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Liquid metal batteries are provided for long-duration energy storage.
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Lithium-ion batteries are manufactured for electric vehicles and storage.
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Manufacturer of low-cost, efficient vanadium redox flow batteries
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Lithium chemicals and renewable energy solutions are supplied for decarbonization.
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Detailed competitors of RheEnergise

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Latest news on Rheenergise

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Complete news archive for RheEnergise

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Frequently Asked Questions about RheEnergise

RheEnergise was founded in 2019 and raised its 1st funding round 2 years after it was founded.

RheEnergise is headquartered in London, United Kingdom. It is registered at London, England, United Kingdom.

Stephen Crosher is the current CEO of RheEnergise. They have also founded this company.

RheEnergise is a funded company, having raised a total of $3.35M across 5 funding rounds to date.

RheEnergise was founded in 2019 and is headquartered in London, United Kingdom. Operations focus on the development of high-density hydro technology for long-duration energy storage within the renewable energy sector. This approach is utilized to balance intermittent renewable sources with demand, providing scalable solutions for large-scale storage needs. Pumped storage principles are employed to enable efficient energy storage and release, supporting decarbonization efforts in energy systems.

RheEnergise's top competitors include Form Energy, Northvolt and Ambri.

RheEnergise offers High-Density Hydro.

RheEnergise has 2 investors. Key investors include European Commission, and Low Carbon Innovation Fund.

The valuation of RheEnergise is $6.77M as of Jan 2021.

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