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Guardtime

Guardtime

Private
TallinnCybersecurityhttps://guardtime.com/

Last Round

Series A

May 25, 2010

Total Funding Raised

$8M

Company Overview

Guardtime is a deep-tech company that provides hash-based cryptography and blockchain technologies for data management and security.

Sector

Cybersecurity

Verticals

Blockchain Infrastructure, Data Protection, Defense Tech, Digital Identity, Space Technology

Business Model

B2G

Customer Profile

Government Contracts, Services & Consulting, Subscription SaaS

AI Layer

Non-AI

Keywords

Keyless Signature InfrastructureKSIdata integrityenterprise blockchainhash-based authenticationtamper-evident audit trailquantum-resistant cryptographykeyless securityzero-trust securitydefense technologydigital provenanceB2Gtechnology licensinghardware security appliancee-Governancespace technology

Historical Pricing

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Caplight Momentum Score

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Guardtime Comparables

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

Guardtime comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Surety, LLC
78%
3IPK
71%
ULedger, Inc.
69%

Guardtime Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series AMay 25, 2010

Key People

Founding team and executive leadership

Shiraz Sonday

Chief Operating Officer

Executive Team

Guardtime Investors

Notable investors and investment history

Guardtime investors
InvestorRounds
Horizons VenturesSeries A
Ambient Sound InvestmentsSeries A
SGInnovateSeries A

Market signals

Structured signals derived from secondary market and firmographic data.

  • Nov 11, 2025

    Monthly visitors increased 47% MoM, reaching 1.3K.

  • May 11, 2025

    Grew 95% QoQ, from 79 to 154 employees.

Guardtime Filings

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

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Frequently Asked Questions

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

Is Guardtime a public or private company?

Guardtime is a private company.

What is the current stock price of Guardtime?

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

How much is Guardtime worth (valuation)?

Valuation information for Guardtime is not publicly available.

Can I buy Guardtime stock?

Guardtime 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 Guardtime's last funding round?

Funding round information for Guardtime is not publicly available.

Who are the main investors in Guardtime?

Investor information for Guardtime is not publicly disclosed.

Will Guardtime IPO soon?

No public IPO plans have been announced for Guardtime.

How can I track Guardtime secondary market activity?

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

Firmographic Details

HeadquartersTallinn
Employee Range59
Year Founded2007
Last FundingMay 25, 2010

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