Cactos

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

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

• Battery energy storage
• Grid-scale storage
• Energy management software
• Commercial storage leasing
• Peak shaving systems

Headquarters

HQ city

Kempele

HQ country

Finland

HQ region

Europe

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. 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.
2. 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.
3. 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.
4. 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

Go-to-market motion1 record

Distribution channels3 records

Marketing channels5 records

Core 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

Named customers11 records

Segments7 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability1 record

Feature3 records

Partnerships

One partnership is on record.

• HuldcoreTechnology or IntegrationStrategic 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

Direct 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

• Facebookfacebook.com/cactosOy
• LinkedInlinkedin.com/company/cactosenergy

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 records

Subsidiaries5 records

Funding overview

Funding rounds6 records

Investors6 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Cactos