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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 5%

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

Historical view of private secondary pricing and transaction trends.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

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Track how buyer interest and sentiment changes over time.

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.

  • Aug 21, 2026

    Monthly visitors increased 30% MoM.

  • Jul 25, 2026

    Monthly visitors increased 75% MoM.

Recent news

Latest coverage and updates

  • expands_offices_inJul 21, 2026

    Cactos Oy expands offices in Europe.

  • receives_financingJun 25, 2026

    Cactos Oy receives financing of $14.3M in funding round.

Cactos Filings

Explore SEC and related filing metadata, where available.

Cactos filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

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

Is Cactos a public or private company?

Cactos is a private company.

What is the current stock price of Cactos?

Cactos is a private company with no public stock price. No recent secondary market data is available.

How much is Cactos worth (valuation)?

Valuation information for Cactos is not publicly available.

Can I buy Cactos stock?

Cactos shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors. Visit https://www.caplight.com to learn more.

When was Cactos's last funding round?

Cactos's most recent funding round was VC Round on January 30, 2025.

Who are the main investors in Cactos?

Key investors in Cactos include The Finnish Climate Fund, Union Square Ventures, Superhero Capital, OP Finland Infrastructure LP.

Will Cactos IPO soon?

No public IPO plans have been announced for Cactos.

How can I track Cactos secondary market activity?

Caplight tracks bids, offers, and trades for private companies. Visit https://www.caplight.com to monitor Cactos's secondary market activity and sign up for updates.

Firmographic Details

HeadquartersHelsinki
Employee Range56
Year Founded2021
Last FundingJun 25, 2026

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