Hydrostor vs TerraStor
Hydrostor
Developing affordable, low impact, emission free #longduration energy storage using compressed air, gravity, and water
124 employees · est. 2010 · Toronto, Canada
TerraStor
Grid-scale Energy Storage for a Carbon-Free Future
2 employees · est. 2021 · Fort Worth, United States
Hydrostor is the older company (2010 vs 2021); Hydrostor is the larger of the two.
Side-by-Side Comparison
| Metric | Hydrostor | TerraStor |
|---|---|---|
| Founded | ||
| Founded | 2010 older | 2021 |
| Headquarters | ||
| Headquarters | Toronto, Canada | Fort Worth, United States |
| Employees | ||
| Employees | 124 larger | 2 |
| Industry | ||
| Industry | Energy, Oil and Gas, Energy Storage | Energy, Energy Storage |
| Funding Stage | ||
| Funding Stage | Convertible Note | Seed |
| Total Funding | ||
| Total Funding | $2.23B | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 10 | 1 |
| Services | ||
| Services | Utility-scale Energy Storage Solutions, Compressed Air Energy Storage Technology, Grid Support and Stability Services, Customizable and Scalable Storage Design, Economic Impact and Job Creation | Developing grid-scale, long-duration energy storage systems, Deploying advanced compressed air energy storage technology, Creating large-scale mechanical batteries |
| Target Customers | ||
| Target Customers | Utility Companies, Grid Operators, Energy Infrastructure Developers, Government Agencies, Industries Seeking Reliable Energy Solutions | Electric grid operators, Renewable energy projects, Utilities seeking carbon-free energy solutions |
| Taxonomy | ||
| Taxonomy | Long-Duration Energy StorageCompressed Air Energy StorageRenewable IntegrationEmission-Free TechnologyUtility Scale Energy StorageBulk Energy Storage +9 | Grid-scale Energy StorageLong-duration StorageCompressed Air Energy StorageMechanical BatteriesCarbon-Free FutureElectrical Grid Solutions +7 |
| Website | ||
| Website | hydrostor.ca | terrastor.co |
About Hydrostor
Hydrostor, founded in 2010, is a pioneering company in the realm of energy storage, specializing in the development of long-duration energy storage systems. With a technological approach that capitalizes on compressed air and water, Hydrostor delivers a reliable solution for energy storage, essentia...
About TerraStor
TerraStor, founded in 2021, is an innovative energy startup with a mission encapsulated in its motto: "Grid-scale Energy Storage for a Carbon-Free Future." Based in the United States, the company operates within the Energy and Energy Storage industries. The company is pioneering the development of...
Also comparing in this category
We will tell you when either one moves
BounceWatch watches Hydrostor and TerraStor for new funding, fast hiring, new executives and a change of software vendor. When one happens, it is in your next e-mail.
Get notified when Hydrostor or TerraStor moves
Funding, new markets, leadership changes, hiring surges — one e-mail, only when something happens.
Frequently Asked Questions
Compare Hydrostor with someone else
Start typing a company name or domain.
Related Comparisons
Compiled from the BounceWatch company index. We last looked at Hydrostor on 21 Aug 2025, and TerraStor on 18 Aug 2025. Where a field is blank here, it means we have not recorded it — not that the answer is zero. How we source and date this.
