FundedIQ
Energy

Hydrostor

Hydrostor offers an innovative technology called Advanced Compressed Air Energy Storage (A-CAES) that is ideal for supporting the transition to a more sustainable and reliable electricity grid. A-CAES provides unique grid services that cannot easily be replicated by other energy storage technologies, making it a valuable option in the market. It can be used to meet various electricity system needs including dispatchable capacity, integrating renewable energy, deferring transmission upgrades, and providing ancillary services. This technology is well-suited for behind-the-meter or remote applications such as mining and large industrial operations. Hydrostor's solution offers cost-effective, long-duration energy storage with zero emissions and can be located wherever it is needed on the grid, potentially replacing retired fossil fuel plants and eliminating the need for new transmission infrastructure. In addition to the technology itself, Hydrostor provides a comprehensive solution that includes financing and warranty, working with top EPC providers to deliver solutions on a global scale.

www.hydrostor.ca Toronto, Canada 101-250 employees
Total raised
$2.0B
Latest round: +640% of prior total
Rounds
4
Latest
Series Unknown
Jan 2026

Hydrostor offers an innovative technology called Advanced Compressed Air Energy Storage (A-CAES) that is ideal for supporting the transition to a more sustainable and reliable electricity grid. A-CAES provides unique grid services that cannot easily be replicated by other energy storage technologies, making it a valuable option in the market. It can be used to meet various electricity system needs including dispatchable capacity, integrating renewable energy, deferring transmission upgrades, and providing ancillary services. This technology is well-suited for behind-the-meter or remote applications such as mining and large industrial operations. Hydrostor's solution offers cost-effective, long-duration energy storage with zero emissions and can be located wherever it is needed on the grid, potentially replacing retired fossil fuel plants and eliminating the need for new transmission infrastructure. In addition to the technology itself, Hydrostor provides a comprehensive solution that includes financing and warranty, working with top EPC providers to deliver solutions on a global scale.

Hydrostor has raised $2.0B across 4 rounds. Its most recent round was a Series Unknown in Jan 2026. Full funding history, investors, and team are detailed below.

Funding history

4 rounds · 1 visible Unlock with plan

4 rounds on record — latest round shown, the rest unlock with a paid plan.

Date
Round
Amount
Lead investor
Jan 28, 2026
Series Unknown
Undisclosed

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People

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