RheEnergise: Funding, Investors & Team (Aug 2026)
RheEnergise is revolutionizing pumped hydro storage with their High-Density Hydro® technology, aimed at enabling large-scale, long-lasting energy storage projects. By using a high-density fluid instead of water, High-Density Hydro allows for projects to be significantly smaller in size while maintaining the same power output. This innovation from RheEnergise will provide the most cost-effective energy storage option on the market, offering unmatched flexibility for the power grid.
RheEnergise has raised $3.0M across 1 funding round on record, the most recent an undisclosed round of $3.0M announced in Jul 2025.
That round is below the $15M median round size for Energy companies tracked on FundedIQ over the last two years.
RheEnergise Company Profile and Key Stats
Latest funding round on record: Jul 2025.
RheEnergise Funding Rounds
RheEnergise Founders and Leadership Team
Contact details for the RheEnergise team: 1 of 1 has an email address on file.
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RheEnergise's latest round of $3.0M is below the median round in Energy. Medians cover the last 24 months of disclosed rounds.
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RheEnergise Funding FAQs
What does RheEnergise do?
RheEnergise is revolutionizing pumped hydro storage with their High-Density Hydro® technology, aimed at enabling large-scale, long-lasting energy storage projects. By using a high-density fluid instead of water, High-Density Hydro allows for projects to be significantly smaller in size while maintaining the same power output. This innovation from RheEnergise will provide the most cost-effective energy storage option on the market, offering unmatched flexibility for the power grid.
How much funding has RheEnergise raised?
RheEnergise has raised $3.0M across 1 round on record. The most recent is an undisclosed round of $3.0M announced in Jul 2025.
When did RheEnergise last raise funding?
RheEnergise's most recent funding round on record is an undisclosed round of $3.0M, announced in Jul 2025.
Who founded RheEnergise?
FundedIQ lists Graham Cook (Founder) at RheEnergise.
Where is RheEnergise headquartered?
RheEnergise is based in London, England, United Kingdom.
How many employees does RheEnergise have?
RheEnergise is in the 11-50 employee band.
How does RheEnergise's funding compare to other Energy startups?
RheEnergise's latest round of $3.0M is below the $15M median round size for Energy companies on FundedIQ across 2,284 tracked companies over the last two years.
About FundedIQ's RheEnergise Funding Data
FundedIQ tracks announced funding rounds and refreshes this profile every week. Round dates, stages and amounts are normalised to a single format, converted to US dollars, and de-duplicated: two records of the same round announced days apart are merged, and two genuinely different rounds are kept apart on the amounts they disclose. Amounts shown are the disclosed figures only — a round announced without a number is listed and excluded from the total rather than estimated.
Employee counts are reported bands, not exact headcounts. Founder and executive names carry the job title on record. Anything we do not hold for RheEnergise is left off this page rather than filled in.
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