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Stellar Cyber

Stellar Cyber

Private
San Jose, CaliforniaCybersecurityhttps://stellarcyber.ai/

Last Round

Debt

Apr 16, 2026

Est. Valuation

$288.72M

Total Funding Raised

$83.3M

Momentum

Top 25%

of companies Caplight tracks

Company Overview

Stellar Cyber is a cybersecurity company that offers an open XDR platform designed to intuitively analyze modern attacks, providing advanced threat detection and response by integrating data from various tools to enhance incident accuracy and automate threat responses through AI and machine learning.

Sector

Cybersecurity

Verticals

Cloud Security, Network Security, SIEM, Incident Response, Threat Intelligence

Business Model

B2B

Customer Profile

Subscription SaaS

AI Layer

Application

Keywords

open XDRautonomous SOCsecurity operationsmanaged security service providerMSSPnetwork detection and responseNDRidentity threat detection and responseITDRagentic AIAI-native securitythreat detectionsecurity automationSIEM alternativealert fatiguesecurity tool sprawlSecOps platform

Historical Pricing

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Caplight Momentum Score

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Stellar Cyber Comparables

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

Stellar Cyber comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Cynet
86%
Seceon Inc.
86%
Blumira
78%

Stellar Cyber Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
DebtApr 16, 2026
VC RoundAug 21, 2023
Series BNov 16, 2021
Series A ExtensionMar 25, 2020
Series AFeb 26, 2019

Key People

Founding team and executive leadership

Aimei Wei

Founder, CTO

Founding Team

Stellar Cyber Investors

Notable investors and investment history

Stellar Cyber investors
InvestorRounds
Monroe CapitalDebt
Northern Light Venture CapitalSeries A, VC Round, Series B, Series A Extension
Susquehanna International GroupVC Round, Series B, Series A Extension
Highland Capital PartnersSeries B
Valley Capital PartnersVC Round, Series B, Series A Extension, Series A
Horizon Technology Finance CorporationDebt
SamsungSeries B

Market signals

Structured signals derived from secondary market and firmographic data.

  • May 19, 2026

    Recognized by Gartner as a leading XDR player.

  • Apr 24, 2026

    Over 30% of top MSSPs now use the platform.

Recent news

Latest coverage and updates

  • recognized_asSep 3, 2026

    Stellar Cyber recognized as Progressive Company in the Network Detection and Response (NDR) market on Sep 3rd '26.

  • recognized_asSep 3, 2026

    Stellar Cyber recognized as Progressive Company in the Network Detection and Response (NDR) market on Sep 3rd '26.

  • partners_withJul 27, 2026

    Stellar Cyber partnered with Inspira Enterprise on Jul 27th '26.

  • partners_withJul 27, 2026

    Stellar Cyber partnered with Brite on Jul 27th '26.

  • partners_withJul 27, 2026

    Stellar Cyber partnered with M-Theory Group on Jul 27th '26.

Stellar Cyber Filings

Explore SEC and related filing metadata, where available.

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

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Frequently Asked Questions

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

Is Stellar Cyber a public or private company?

Stellar Cyber is a private company.

What is the current stock price of Stellar Cyber?

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

How much is Stellar Cyber worth (valuation)?

Valuation information for Stellar Cyber is not publicly available.

Can I buy Stellar Cyber stock?

Stellar Cyber 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 Stellar Cyber's last funding round?

Stellar Cyber's most recent funding round was Debt on April 16, 2026.

Who are the main investors in Stellar Cyber?

Key investors in Stellar Cyber include Susquehanna International Group, Valley Capital Partners, Highland Capital Partners.

Will Stellar Cyber IPO soon?

No public IPO plans have been announced for Stellar Cyber.

How can I track Stellar Cyber secondary market activity?

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

Firmographic Details

HeadquartersSan Jose, California
Employee Range104
Year Founded2015
Last FundingApr 16, 2026

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