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Act Security

Act Security

Private
Tel AvivCybersecurityhttps://act.security

Last Round

Series A

Jul 28, 2026

Total Funding Raised

$60M

Momentum

Top 5%

of companies Caplight tracks

Company Overview

Act Security operates in Cybersecurity and is based in Tel Aviv. Its latest recorded funding round was a Series A round in July 2026.

Act Security is a cybersecurity company that develops a platform for securing cloud infrastructure and data centers.

Sector

Cybersecurity

Verticals

Cloud Security, Zero Trust, Identity & Access, Cloud Infrastructure, Compliance & Risk

Business Model

B2B

Customer Profile

Subscription SaaS

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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Act Security Comparables

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

Act Security comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Blast Security
88%
Google
77%
Sweet Security
76%
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Act Security Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AJul 28, 2026
SeedAug 10, 2025
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Key People

Founding team and executive leadership

Itay Kirshenbaum

CTO and Co-Founder

Founding Team

Stephan Goldberg

Co-Founder Chief Product Officer

Founding Team

Jonathan Langer

CEO and Co-Founder

Founding Team

Tal Vasser

About, CFO COO

Executive Team

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Act Security Investors

Notable investors and investment history

Act Security investors
InvestorRounds
Team8Series A
Notable CapitalSeries A
Silicon Valley CISO InvestmentsSeries A
Hetz VenturesSeries A
Brightmind PartnersSeries A
Lux CapitalSeries A
Bessemer Venture PartnersSeries A
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Market signals

Structured signals derived from secondary market and firmographic data.

  • Sep 20, 2026

    Grew 57% QoQ, from 47 to 74 employees.

  • Aug 22, 2026

    Grew 64% QoQ, from 42 to 69 employees.

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Recent news

Latest coverage and updates

  • launchesSep 2, 2026

    Act Security Ltd. launches Amphi, a free, open-source suite of tools that simplifies managing cloud access policies, in Israel on Sep 2nd '26.

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Act Security Filings

Explore SEC and related filing metadata, where available.

Act Security 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 Act Security's valuation, stock price, and market status.

Is Act Security a public or private company?

Act Security is a private company.

What is the current stock price of Act Security?

Act Security is a private company, so its shares have no public market price. Caplight tracks Act Security's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Act Security worth (valuation)?

Valuation information for Act Security is not publicly available.

Can I buy Act Security stock?

Act Security shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Act Security's last funding round?

Act Security's most recent funding round was Series A on July 28, 2026.

Who are the main investors in Act Security?

Key investors in Act Security include Notable Capital.

Will Act Security IPO soon?

No public IPO plans have been announced for Act Security.

How can I track Act Security secondary market activity?

Caplight tracks bids, offers, and trades in Act Security's shares on secondary markets.

Firmographic Details

HeadquartersTel Aviv
Employee Range55
Year Founded2025
Last FundingJul 28, 2026

Institutional Data Access

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