Fundraising Fox

Stellar Cyber

San Jose, US · Founded 2017 · Delaware corporation · 145 employees on LinkedIn · 5 known investors

Stellar Cyber provides an AI-powered threat hunting tool that allows security analysts to query security data using natural language, generating structured searches across on-premise and cloud data sources. The platform is designed for enterprise security teams to accelerate threat investigation and reduce mean time to investigate (MTTI).

Also known as Stellar Cyber

Founders & leadership

Stellar Cyber was founded in 2017 by Changming Liu and Aimei Wei.

CLChangming Liu
Changming LiuCo-founder
AWAimei Wei
Aimei WeiinFounder, CTO

Board

FD
Feng DengBoard director
YL
Ye LiBoard director
RC
Raymond ChoiBoard director
FM
Frank MarshallBoard director

Investors · 5

Reported raises · per SEC filings

Form D private placements

$82.5M disclosed across 5 rounds · 2019–2023

$33.7MraisedDec 2023 · 10 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Aimei WeiExecutive Officer, Director
  • Changming LiuExecutive Officer, Director
  • Feng DengDirector
  • Raymond ChoiDirector
  • Frank MarshallDirector
  • Corey MulloyDirector
  • Ye LiDirector
Offering amount
$33.7M
Amount sold
$33.7M
First sale
Aug 2023
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$37.4MraisedNov 2021 · 16 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Ye LiDirector
  • Frank MarshallDirector
  • Feng DengDirector
  • Changming LiuExecutive Officer, Director
  • Corey MulloyDirector
  • Aimei WeiExecutive Officer, Director
  • Raymond ChoiDirector
Offering amount
$39.6M
Amount sold
$37.4M
First sale
Nov 2021
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$1.5MraisedNov 2020 · 1 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Aimei WeiExecutive Officer, Director
  • Raymond ChoiDirector
  • Feng DengDirector
  • Changming LiuExecutive Officer, Director
  • Frank MarshallDirector
  • Ye LiDirector
Offering amount
$1.5M
Amount sold
$1.5M
First sale
Nov 2020
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$7.8MraisedJul 2020 · 5 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Changming LiuExecutive Officer, Director
  • Feng DengDirector
  • Ye LiDirector
  • Raymond ChoiDirector
  • Frank MarshallDirector
  • Aimei WeiExecutive Officer, Director
Offering amount
$7.8M
Amount sold
$7.8M
First sale
Jul 2020
Incorporated
Corporation, Delaware
Federal exemptions
06b
Full filing on SEC EDGAR ↗
$2.1MraisedSep 2019 · 2 investors · Other Technology
Rule 506(b)
Officers, directors & promoters on the filing
  • Changming LiuExecutive Officer, Director
  • Feng DengDirector
  • Aimei WeiExecutive Officer, Director
  • Frank MarshallDirector
  • Steve O'HaraDirector
Offering amount
$7.1M
Amount sold
$2.1M
First sale
Sep 2019
Incorporated
Corporation, Delaware, 2015
Federal exemptions
06b
Full filing on SEC EDGAR ↗

Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.

Company profile

researched Aug 2026

Stellar Cyber develops a security operations (SecOps) platform that consolidates multiple detection and response functions into a single AI-native system. The platform combines next-generation SIEM, network detection and response (NDR), user and entity behavior analytics (UEBA), identity threat detection and response (ITDR) and Open XDR capabilities, and is positioned as an addition to existing security stacks rather than a replacement, so customers can retain their current EDR and other tools.

The platform ingests vendor-agnostic telemetry from any tool, cloud or data source and normalizes it into a single MITRE-aligned case timeline. Automated triage is used to discard false positives and prioritize alerts, and the company's "Multi-Layer AI" correlates signals into consolidated attack narratives that progress from raw telemetry to validated case verdicts. Deployment is supported for both on-premises and cloud environments, with detection and response handled in one unified console.

Business model

Stellar Cyber sells its platform to two customer segments — enterprise security teams and managed security service providers (MSSPs) — and states that it offers predictable pricing for its AI-native platform. It also positions MSSP relationships as a partnership channel that creates new revenue opportunities for those partners.

Traction

The company states it serves over 15,000 customers and partners globally and cites a 4.8 rating on Gartner Peer Insights. Named references include Sumitomo Chemical, the University of Zurich central IT department, and RSM US.

Full profile — market position, technology, go-to-market, geography

Market position

Stellar Cyber positions itself as a consolidation play against bloated, noisy and costly multi-vendor security stacks, offering built-in NDR, next-generation SIEM and automated response in one platform without rip-and-replace. Cited third-party commentary characterizes it as a cost-effective route to adopting AI and XDR and as a platform that lets customers extend their existing EDR tools into an XDR workflow.

Key stated differentiators are openness — support for any EDR and any data source rather than a single-vendor stack — full-cycle coverage from telemetry ingestion to validated case verdicts in one console, and automation via Multi-Layer AI combined with predictable pricing.

Technology

The platform is built around what the company calls Multi-Layer AI, which processes large volumes of security signals to produce prioritized detections and correlated attack stories, with automated triage to filter false positives. It unifies data from heterogeneous tools and sources into MITRE-aligned case timelines and supports open integration with third-party EDR products, spanning on-premises and cloud data.

Go-to-market

Direct engagement with enterprises via demo requests and platform trials, alongside a partner-led motion targeting MSSPs. Marketing leans on third-party validation, including analyst commentary, Gartner Peer Insights reviews, and a Gartner Magic Quadrant report for Network Detection and Response offered as a download.

Enterprise security operations teams seeking to unify defenses and accelerate detection and response, and managed security service providers looking to simplify operations and serve clients from a single platform. Cited users include a chemicals manufacturer, a university IT department, and a professional services firm's security and privacy function.

Geography

Headquartered in San Jose, United States, with a customer and partner base described as global; referenced users include organizations in the United States, Europe and Japan.

Compiled by commissioned research from 1 cited public sources — announcements, filings, and press listed under research sources below.

Key figures

latest reported
Customers and partners globallyJan 202515,000 customers and partners
Gartner Peer Insights ratingJan 20254.8 rating
HeadcountAug 2026145

Company-reported or press-reported figures, each dated to when it was claimed — not independently audited.

Competitors · 10

by search overlap
Palo Alto Networks636 shared keywordsPalo Alto Networks provides cybersecurity platforms and services to protect organizations' digital infrastructure across cloud, network, and security operations. The company serves enterprise organizations, governments, financial institutions, utilities, and healthcare providers globally.
Sentinel One594 shared keywordsSentinelOne provides an AI-powered cybersecurity platform for enterprises that integrates endpoint protection, threat detection, and incident response capabilities. The company serves large enterprises, including many Fortune 500 organizations, to protect against cyber threats at scale.
Netezza559 shared keywordsIBM is a global technology company whose business spans enterprise software (including Red Hat, HashiCorp, and Confluent), IT infrastructure such as mainframes, servers, and storage, and IT consulting services. The company is also investing heavily in quantum computing and AI-based enterprise offerings, including its Lightwell open-source software security clearinghouse and the Anderon quantum wafer foundry.
Exabeam461 shared keywordsExabeam provides a security operations platform that ingests logs and telemetry from multiple point solutions, enriches data with behavioral analytics, and correlates alerts to deliver threat detection and investigation capabilities for security teams. The platform integrates with SIEMs and third-party security tools through open API standards and automation workflows.
Crowdstrike450 shared keywordsCrowdStrike provides an AI-native cybersecurity platform that unifies endpoint, identity, cloud, SaaS, and AI protection to detect and stop breaches for enterprise organizations. It combines automated response with human-led security operations including managed detection and response, threat hunting, and security services.
Splunk383 shared keywordsSplunk offers a unified platform for security and observability that ingests and analyzes large-scale data across hybrid cloud environments. Its tools support security operations centers with analytics and automated response, and help teams monitor application and infrastructure performance.
ArrowPoint353 shared keywordsCisco provides networking, data center, and security technology for enterprises, including infrastructure to run traditional and AI workloads and tools to keep organizations running against cyberattacks and outages. Its platform connects networking devices and monitors security events across corporate networks.
Check Point Software348 shared keywordsCheck Point Software Technologies is a cybersecurity company providing security products and solutions. This page is its investor relations section, containing annual reports, SEC filings, financial results, and corporate governance information.
Elastic342 shared keywordsElastic develops search-powered software for enterprises, offering products for search, observability, and security built on Elasticsearch. The company positions its technology to help organizations use their data for AI applications.
Netwitness311 shared keywordsNetWitness builds a threat detection and response platform that combines network detection and response, SIEM, EDR, SOAR, and user behavior analytics with full packet capture, machine learning, and behavioral analysis. It serves security operations teams monitoring network, endpoint, and cloud environments in the cybersecurity industry.

Companies competing with Stellar Cyber for the same Google search keywords, organic and paid, via search-intersection analysis.

Legal entities · 1

corporate structure
Stellar CyberDelaware

Research sources · 1

primary sources listed

1 public sources were cited for this profile; the first-party ones are listed here.

Frequently asked questions

What does Stellar Cyber do?
Stellar Cyber offers an AI-native SecOps platform unifying NG-SIEM, NDR, UEBA, ITDR and Open XDR in one console.
Who founded Stellar Cyber?
Stellar Cyber was founded by Changming Liu, Aimei Wei in 2017.
Who are Stellar Cyber's investors?
Stellar Cyber's investors include Ballistic Ventures, Evolution VC Partners, Foothill Ventures, Northern Light Venture Capital, PROOF.
How much funding has Stellar Cyber raised?
Stellar Cyber has disclosed $82.5M raised across 5 rounds.
Where is Stellar Cyber headquartered?
Stellar Cyber is headquartered in San Jose, US.