Fourth Power vs Relectrify
Fourth Power
Energy Storage that Grows with the Grid
35 employees · est. 2021 · Cambridge, United States
Relectrify
World leaders in battery cell-level control technology
52 employees · est. 2015 · Melbourne, Australia
Relectrify is the older company (2021 vs 2015); Relectrify is the larger of the two.
Side-by-Side Comparison
| Metric | Fourth Power | Relectrify |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2015 older |
| Headquarters | ||
| Headquarters | Cambridge, United States | Melbourne, Australia |
| Employees | ||
| Employees | 35 | 52 larger |
| Industry | ||
| Industry | Energy, Renewable Energy, Energy Storage | Energy, Renewable Energy, Energy Storage |
| Funding Stage | ||
| Funding Stage | Series A | Series B |
| Total Funding | ||
| Total Funding | $19.00M | $39.14M |
| Funding Rounds | ||
| Funding Rounds | 1 | 9 |
| Services | ||
| Services | Thermal energy storage systems, Utility-scale energy solutions, Flexible grid-scale storage solutions | Advanced Battery Energy Storage Solutions, Modular Energy System Installations, Performance Monitoring and Maintenance |
| Target Customers | ||
| Target Customers | Utility companies, Energy infrastructure developers, Renewable energy sectors, Government energy agencies | Commercial & Industrial Energy Users, Utility-Scale Asset Owners |
| Taxonomy | ||
| Taxonomy | Thermal BatteryEnergy StorageGrid StorageThermal StorageUtility-Scale StorageLong-Duration Energy Storage +8 | Battery Cell-level ControlEnergy StorageProprietary ElectronicsSoftware DevelopmentBattery ManagementInverter Technology +9 |
| Website | ||
| Website | gofourth.com | relectrify.com |
About Fourth Power
Fourth Power is making significant strides in the energy sector with its innovative thermal battery technology. Founded in 2021 and headquartered in the United States, the company focuses on transforming renewable energy into an on-demand source via utility-scale thermal storage. These technological...
About Relectrify
Relectrify, founded in 2015, has emerged as a frontrunner in the energy sector with its pioneering focus on battery cell-level control technology. The company’s slogan, "World leaders in battery cell-level control technology," reflects its ambition and success in this niche. Rooted in research from...
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Compiled from the BounceWatch company index. We last looked at Fourth Power on 18 Aug 2025, and Relectrify 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.
