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.

Board
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 TechnologyRule 506(b)
- 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
▶$37.4MraisedNov 2021 · 16 investors · Other TechnologyRule 506(b)
- 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
▶$1.5MraisedNov 2020 · 1 investors · Other TechnologyRule 506(b)
- 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
▶$7.8MraisedJul 2020 · 5 investors · Other TechnologyRule 506(b)
- 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
▶$2.1MraisedSep 2019 · 2 investors · Other TechnologyRule 506(b)
- 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
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Stellar 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 reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Competitors · 10
by search overlapCompanies competing with Stellar Cyber for the same Google search keywords, organic and paid, via search-intersection analysis.
Legal entities · 1
corporate structure▸Research sources · 1
primary sources listed
- Stellar Cyberstellarcyber.ai · web
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.




