Cactos vs Fortress Power
Cactos
World's first cloud-controlled, distributed battery energy storage system based on recycled EV batteries
36 employees · est. 2021 · Muhos, Finland
Fortress Power
Smart, Clean Energy Storage for Homes and Business - Lithium Batteries
61 employees · est. 2016 · Langhorne, United States
Fortress Power is the older company (2021 vs 2016); Fortress Power is the larger of the two.
Side-by-Side Comparison
| Metric | Cactos | Fortress Power |
|---|---|---|
| Founded | ||
| Founded | 2021 | 2016 older |
| Headquarters | ||
| Headquarters | Muhos, Finland | Langhorne, United States |
| Employees | ||
| Employees | 36 | 61 larger |
| Industry | ||
| Industry | Energy, Renewable Energy, Energy Storage | Energy, Manufacturing, Energy Storage |
| Funding Stage | ||
| Funding Stage | Series A | Growth |
| Total Funding | ||
| Total Funding | $28.50M | Not tracked yet |
| Funding Rounds | ||
| Funding Rounds | 4 | 1 |
| Services | ||
| Services | Energy storage system installation, Cactos Spine software for energy management, Battery recycling and repurposing, Energy backup solutions, Consultation and implementation for reserve market entry | Energy Storage System Sales, Installer Training and Certification, Technical Support and Documentation, Residential and Commercial Energy Solutions, Rebates and Incentives Programs |
| Target Customers | ||
| Target Customers | Commercial properties, Industrial facilities, Agricultural businesses, Real estate investors, Residential apartment buildings, Public infrastructure, Logistics centers | Homeowners, Commercial Businesses, Industrial Facilities, Schools, Healthcare Centers, Government Facilities, Energy Installers and Distributors |
| Taxonomy | ||
| Taxonomy | Cloud-controlled Energy StorageDistributed Battery SystemsRecycled EV BatteriesSmart Energy StorageCritical Power SupplyRenewable Energy Utilisation +4 | Clean Energy StorageLithium Iron Phosphate BatteriesEnergy Storage SolutionsBattery ManufacturingCompact Battery SystemsReliable Energy Solutions +8 |
| Website | ||
| Website | cactos.fi | fortresspower.com |
About Cactos
Cactos, founded in 2021, is making waves in the Energy sector with its pioneering product—a distributed battery energy storage system that is uniquely controlled via the cloud. Capitalizing on the sustainability trend, Cactos utilizes recycled EV batteries, positioning itself at the forefront of the...
About Fortress Power
Fortress Power is a prominent player in the rapidly growing energy storage sector, delivering smart, clean energy storage for homes and businesses through its specialization in Lithium Iron Phosphate batteries. Since its inception in 2016, this Pennsylvania-based company has successfully carved a ni...
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Compiled from the BounceWatch company index. We last looked at Cactos on 18 Aug 2025, and Fortress Power on 14 May 2026. 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.
