Cactos
- Company typePrivate
- Founded2021
- HeadquartersKempele, Finland
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
Cactos firmographics
Firmographics- Name
- Cactos
- Legal name
- Cactos Oy
- Website
- https://cactos.com
- Company type
- Private
- Founded year
- 2021
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Ownership category
- akta.pro rank
Cactos industry classification
Industry- Product category
- Battery Energy Storage Systems
- NAICS
- Battery Manufacturing (33591), Battery Manufacturing (335910)
- akta.pro primary industry
- Battery Second-Life Repurposing & Integration (Stationary Reuse, Repack/Remanufacture) (EUAFACAG)
- akta.pro secondary industries
- Battery Second-Life, Testing & Repurposing (EV-to-Stationary) (EUAIAIAK), Battery Repair, Refurbishment & Remanufacturing Services (Module/Pack Repair, Rework) (EUAFACAI), Testing, Grading & State-of-Health (SoH) Diagnostics (EOL Assessment, Certification) (EUAFACAH), Battery Recycling & Materials Recovery (Li-ion, LFP, Flow, Lead-Acid) (EUAMALAE)
Keywords
Where Cactos is headquartered
LocationHeadquarters
- HQ city
- Kempele
- HQ country
- Finland
- HQ region
- Europe
Offices3 records
Markets served
Cactos business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Battery Energy Storage System Leasing: Cactos leases battery storage systems to customers on 10-year contracts (minimum 5 years). The lease includes installation, financing, service, maintenance, 24/7 monitoring, and market participation. Starting from €690/month plus installation fee from €5000.
- Electricity Contracts: Customers with Cactos battery storage can purchase electricity at spot price + 0.30 snt/kWh margin with no base fee. This creates an additional recurring revenue stream through electricity sales.
- Grid-Scale Projects: Large-scale battery storage installations for grid operators and energy companies. Cactos delivers and operates grid-scale battery sites, generating revenue through project contracts and ongoing operational fees.
- Reserve Market Participation: Battery storage systems participate in reserve markets (FCR-N, FCR-D, aFRR) and wholesale electricity markets, with customers receiving 90-92% of market revenues and Cactos retaining the remainder.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Subscription | Multi-year contract | Cactos Lease - Standard commercial battery storage |
| Unit Pricing | Multi-year contract | Product Capacities |
| Subscription | Monthly | Electricity Contract |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
Cactos product offering
Product offeringCore offering
Cactos designs, manufactures, and leases battery energy storage systems ranging from 130 kWh indoor units to 4,180+ kWh grid-scale installations, using both proprietary Battery Restoration Technology on second-life Tesla EV batteries and newly manufactured LFP modules. Its Cactos Spine software platform automates load shifting, peak shaving, reserve market trading, and 24/7 monitoring across a Virtual Battery Pool. Customers access the hardware primarily through multi-year Cactos Lease subscriptions bundled with installation, market participation, and full-service maintenance.
Product overview
Cactos is a Finnish battery energy storage system (BESS) provider that designs, manufactures, and deploys intelligent energy storage solutions. The product portfolio consists of the Cactos Spine software platform coordinating the entire ecosystem, paired with hardware products spanning indoor units (Cactos Cardo with 130 kWh, Cactos Fero with 215 kWh), outdoor units (Cactos Steno with 215 kWh, Cactos Yavia with 430 kWh), next-generation units (Cactos Mylo with 520 kWh), and grid-scale systems (Cactos Nevado starting from 4,180 kWh). Originally utilizing recycled Tesla EV batteries, the company now manufactures its own battery modules at its factory in Kempele, Finland. Solutions are offered through leasing contracts (Cactos Lease) and complemented by electricity supply services (Cactos Energy). The systems serve industries including logistics, manufacturing, EV charging, agriculture, real estate, and commercial properties, providing load shifting, peak shaving, solar storage, electricity market participation, and backup power capabilities.
Differentiator
Problem solved
Functional benefit
Brands
- Cactos Spine: Proprietary software platform for monitoring, reporting, and controlling Cactos energy storage systems. Manages energy optimization, reserve market trading, and real-time system monitoring.
Products and services
- Cactos Spine AI-powered software platform that monitors, controls, and optimizes Cactos battery energy storage systems in real-time, automating electricity market trading, load shifting, peak shaving, and system performance tracking. Sold and bundled with Cactos hardware for commercial and grid-scale customers.
- Cactos Cardo Indoor battery energy storage unit built with lithium iron phosphate (LFP) batteries. 130 kWh battery capacity and 45 kW power output, positioned as backup power for commercial sites with smaller grid connections.
- Cactos Fero Indoor battery energy storage unit with 215 kWh battery capacity and 92 kW power output for commercial and industrial customers.
- Cactos Steno Outdoor battery energy storage unit with 215 kWh battery capacity and 92 kW power output for external commercial and industrial sites.
- Cactos Yavia Outdoor battery energy storage unit with 430 kWh battery capacity and 184 kW power output, engineered for harsh outdoor conditions and applications such as EV charging stations and industrial loads.
- Cactos Mylo Next-generation battery energy storage unit with 520 kWh battery capacity and 260 kW power output per unit, with improved performance and efficiency versus previous models. Unveiled at the Kempele factory in November 2025.
- Cactos Nevado Grid-scale battery energy storage solution starting from 4,180 kWh battery capacity and 2,090 kW power output per unit. Designed for utility-scale projects and electricity market participation, with multiple units installable in parallel. Unveiled at the Kempele factory in November 2025.
- Cactos Lease Subscription leasing service for Cactos battery energy storage systems that bundles delivery, installation, fully automated operation, electricity market trading, the Cactos Spine service, all maintenance and updates, and 24/7 monitoring. Minimum 5-year contract, typically 10 years, starting from €690/month plus a €5,000+ installation fee.
- Cactos Energy Spot-price electricity contract for business customers with Cactos battery storage, priced at spot + 0.30 snt/kWh margin (excl. VAT) with no base fee. Bundled with Cactos Spine for real-time monitoring and participation in aFRR, day-ahead, and intraday electricity markets.
Quantifiable outcome
- Quadrupled revenue for second consecutive year
- +3 more outcomes
Companies that use Cactos
Customer profileNamed customers11 records
Segments7 records
Ideal customer profiles6 records
Cactos technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
AI capability1 record
Feature3 records
Cactos partnerships and signals
Strategic signalPartnerships
One partnership is on record.
- HuldcoreStrategic partnership to develop cybersecurity solutions for the energy sector. Huld is a Finnish software and hardware engineering company specializing in embedded systems and connectivity.
Scale indicators9 records
Recent moves11 records
Expansion highlights6 records
Cactos competitors and assessment
Company assessmentDirect peers
- Fluence Energy: Global market leader in utility-scale and commercial battery energy storage systems with AI-driven software platform (Fluence Mosaic). Competes directly with Cactos across European grid-scale and C&I segments, but at significantly larger scale.
- Polarium: Swedish battery energy storage provider targeting telecom, commercial, and grid-scale markets across Europe and Africa. Closest geographic and product-line peer to Cactos, with similar modular product strategy and European focus.
- Merus Power: Finnish energy storage and power quality solutions company listed on the Helsinki Stock Exchange. Direct domestic peer to Cactos with overlapping target markets in Nordic grid-scale and industrial customers.
- Ferroamp: Swedish-listed energy technology company offering solar, storage, and EV charging solutions for commercial and residential customers. Comparable product mix to Cactos in the Nordic C&I segment, though smaller-scale focus.
- Connected Energy: UK-based second-life EV battery energy storage specialist focused on commercial and grid-scale deployments. Most direct peer to Cactos' heritage business model of repurposing EV batteries for stationary storage.
- ADS-TEC Energy: German-based battery storage solutions provider for commercial, industrial, and grid applications with manufacturing in Europe. Comparable vertically integrated BESS business model targeting European C&I customers.
- Stem Inc: U.S.-listed AI-driven clean energy storage and software company acquired by also encores. Competes with Cactos on the AI software/virtual power plant layer, with comparable Spine-like platform approach to energy optimization.
Broad incumbents
- Tesla Energy (Megapack): Tesla's energy business sells Megapack, Powerpack, and Powerwall battery storage systems globally. Directly comparable to Cactos' commercial and grid-scale offerings, with significantly larger manufacturing scale and brand recognition.
- sonnen (Shell): German residential and small commercial battery storage company owned by Shell. Adjacent peer with overlapping second-life battery expertise and European focus, though primarily residential rather than C&I/grid-scale.
Regional players
- Bredenoord: Dutch provider of mobile and stationary energy solutions including battery storage, primarily serving Benelux and Northern European markets. Regional peer in Cactos' Netherlands expansion geography.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Cactos social profiles
Digital presenceCactos compliance and trust
Trust signalCompliance2 records
Cactos financial estimates
Financial estimateRevenue estimate
Valuation estimate
Cactos leadership team
Management profileNumber of profiles
Profiles12 records
Cactos subsidiaries and ownership
Company hierarchySubsidiaries5 records
Cactos funding detail
Funding detailFunding overview
Funding rounds6 records
Investors6 records
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Cactos M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Cactos
What does Cactos do?
Cactos designs, manufactures, and leases battery energy storage systems ranging from 130 kWh indoor units to 4,180+ kWh grid-scale installations, using both proprietary Battery Restoration Technology on second-life Tesla EV batteries and newly manufactured LFP modules. Its Cactos Spine software platform automates load shifting, peak shaving, reserve market trading, and 24/7 monitoring across a Virtual Battery Pool. Customers access the hardware primarily through multi-year Cactos Lease subscriptions bundled with installation, market participation, and full-service maintenance.
Is Cactos a public or private company?
Cactos is a private company. It is classified as venture growth investor backed and is currently operating.
When was Cactos founded?
Cactos was founded in 2021. It employs 101 to 250 people.
Where is Cactos based?
Cactos is headquartered in Kempele, Finland, in the Europe region.
How does Cactos make money?
Four revenue lines are on record. Battery Energy Storage System Leasing is the primary driver. The others are electricity Contracts, grid-Scale Projects and reserve Market Participation.
Who are Cactos's main competitors?
Direct peers on record are Fluence Energy, Polarium, Merus Power, Ferroamp, Connected Energy, ADS-TEC Energy and Stem Inc. Broad incumbents are Tesla Energy (Megapack) and sonnen (Shell). Bredenoord is listed as a regional player.
Does Cactos have an API?
No public API is recorded for Cactos.
What industry is Cactos in?
Cactos's product category is Battery Energy Storage Systems. Its primary akta.pro industry code is EUAFACAG, Battery Second-Life Repurposing & Integration (Stationary Reuse, Repack/Remanufacture), with a secondary code of EUAIAIAK, Battery Second-Life, Testing & Repurposing (EV-to-Stationary). Its NAICS code is 33591.