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Cactos

Cactos

Private
HelsinkiEnergy & Sustainabilityhttps://cactos.com/fi

Last Round

Series A

Jun 25, 2026

Total Funding Raised

$52.03M

Momentum

Top 1%

of companies Caplight tracks

Company Overview

Cactos is a greentech company that designs, manufactures, and operates smart battery energy storage systems using second-life electric vehicle batteries.

Sector

Energy & Sustainability

Verticals

Energy Storage, Energy Management, Smart Grid, Renewable Energy

Business Model

B2B

Customer Profile

Hardware + Subscription, Revenue Share, Services & Consulting

AI Layer

Application

Keywords

battery energy storageBESSenergy storage as a serviceESaaSenergy management softwaregrid balancingdistributed energy resourcesDERload shiftingpeak shavingvirtual power plantVPPbackup powersmart gridelectricity market trading

Historical Pricing

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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Cactos Comparables

Compare Cactos with similar companies based on industry and business-model similarity.

Cactos comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Tesvolt AG
81%
Pixii
81%
Co-Power Energy GmbH
78%

Cactos Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AJun 25, 2026
SeedJan 30, 2025
Corporate FundingJan 10, 2024
SeedNov 29, 2022

Key People

Founding team and executive leadership

Sampsa Hämäläinen

Chief Financial Officer

Executive Team

Veli-Erkki Ruotsalainen

Chief Operating Officer

Executive Team

Cactos Investors

Notable investors and investment history

Cactos investors
InvestorRounds
The Finnish Climate FundCorporate Funding
TesiSeries A
Union Square VenturesSeries A, Seed
Superhero CapitalSeed
FJ LabsSeries A
JTel OySeries A
Silence VCSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Jul 25, 2026

    Monthly visitors increased 75% MoM.

  • Jul 20, 2026

    Open roles increased to 12, 4x the trailing average.

Cactos Filings

SEC and related filings with document metadata.

Data table
TypedDateAmount OfferedAmount SoldFillingPagesDownload
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Cactos Filings

SEC and related filings with document metadata.

Frequently Asked Questions

Common questions about Cactos's valuation, stock price, and market status.

Firmographic Details

HeadquartersHelsinki
Employee Range84
Year Founded2021
Last FundingJun 25, 2026

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