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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 operates in Energy & Sustainability and is based in Helsinki. Its latest recorded funding round was a Series A round in June 2026.

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, Clean Manufacturing

Business Model

B2B

Customer Profile

Hardware + Subscription, Revenue Share, Services & Consulting

AI Layer

Application

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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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%
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Cactos Funding Rounds

Historical fundraising activity

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

Founding team and executive leadership

Sampsa Hämäläinen

Chief Financial Officer

Executive Team

Veli-Erkki Ruotsalainen

Chief Operating Officer

Executive Team

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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
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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.

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Cactos Filings

Explore SEC and related filing metadata, where available.

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

Filing documents are not displayed on this public page. Request access to learn about available coverage.

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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, so its shares have no public market price. Caplight tracks Cactos's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

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.

When was Cactos's last funding round?

Cactos's most recent funding round was Series A on June 25, 2026.

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 in Cactos's shares on secondary markets.

Firmographic Details

HeadquartersHelsinki
Employee Range59
Year Founded2021
Last FundingJun 25, 2026

Institutional Data Access

Join leading institutional investors using Caplight to access private market data, discover pricing, and execute secondary block trades.

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