CISO Tribune

Vendor comparison · 2 companies

DeepSeas vs Stellar Cyber

DeepSeas sells cybersecurity services that range from strategic guidance to offensive testing and 24/7 defense, aimed at lean teams protecting complex environments. Stellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities. CISO Tribune files both under MDR and managed SOC. This page sets the two records side by side: what each sells, where it is based, who owns and funds it, the customers it names and its recent news, each fact numbered to its source.

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  • DeepSeas
  • Stellar Cyber
DeepSeas vs Stellar Cyber: Products, Customers and Funding Compared
DeepSeasDeepSeas sells cybersecurity services that range from strategic guidance to offensive testing and 24/7 defense, aimed at lean teams protecting complex environments.deepseas.comStellar CyberStellar Cyber sells a SecOps platform that uses AI for threat detection and response through unified NG-SIEM, NDR, and Open XDR capabilities.stellarcyber.ai
What it sells
  • Threat Intelligence[1][4][9]DeepSeas analysts study how adversaries operate and gather the data on the DeepSeas platform.
  • CyberFusion SOC[1][8]A dedicated SOC where intelligence, detection and response work as one loop.
  • DeepSeas Complete[1][5][6]A cyber defense program that starts with Endpoint MDR and puts 50+ services within reach under one agreement.
  • Stellar Cyber Open XDR PlatformA SecOps platform that unifies SIEM, network detection and response, identity threat detection and response, and behavior analytics with AI-driven detection, investigation and response.
Categories
Headquarters
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • October 5, 2026Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.[16]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, DeepSeas sells mainly to growing organizations with mixed environments that are run by lean security teams. DeepSeas addresses organizations that are not small businesses but do not have enterprise-sized teams and budgets. DeepSeas MDR covers IT, cloud, identity, mobile devices and OT environments, including production floors and medical systems. For buyers who already run an EDR or SIEM, DeepSeas says it operates and tunes that tooling, and it brings its own where none exists. DeepSeas offers audit readiness and compliance support to regulated industries.Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs. Stellar Cyber designs its enterprise platform for security teams of any size or skill level. Stellar Cyber Open XDR can be deployed on-premises, from the cloud, or co-managed by an MSSP.
Last verified
November 11, 2026November 9, 2026

Where they overlap

  • DeepSeas and Stellar Cyber are both filed under MDR and managed SOC.

Where they differ, field by field

  • DeepSeas's primary category is MDR and managed SOC; Stellar Cyber's is SIEM.
  • DeepSeas is also filed under Penetration testing and red team services, Threat intelligence and Vulnerability management. Stellar Cyber is also filed under AI SOC analysts.
  • DeepSeas lists Threat Intelligence, CyberFusion SOC and DeepSeas Complete. Stellar Cyber lists Stellar Cyber Open XDR Platform.
  • Stellar Cyber is privately held.

What it sells: DeepSeas

What Threat Intelligence does[1][4][9]
DeepSeas has a team of reverse engineers, threat analysts and forensics experts that continuously strengthens its threat intelligence base. Analysts write a new detection rule when a hypothesis is confirmed. Validated findings become detection rules that deploy automatically across every monitored environment.
What CyberFusion SOC does[1][8]
The CyberFusion SOC emphasizes proactive threat hunting, engaging across different teams to stay ahead of potential threats. The CyberFusion SOC provides solutions based on client-specific needs, industry verticals and risk appetites. The CyberFusion SOC uses an integrated, cyclical model with interconnected components like threat intelligence, detection engineering and incident response.
What DeepSeas Complete does[1][5][6]
Endpoint MDR is the only service a buyer has to buy, and everything else is optional. Every service in DeepSeas Complete runs on credits, which buyers purchase in blocks sized to their program. Elective Credits can be applied across 50+ services, including security testing, assessments and advisory engagements.

Questions about DeepSeas and Stellar Cyber

What do DeepSeas and Stellar Cyber sell?
DeepSeas sells Threat Intelligence, CyberFusion SOC and DeepSeas Complete. Stellar Cyber sells Stellar Cyber Open XDR Platform.
Are DeepSeas and Stellar Cyber in the same category?
They share MDR and managed SOC. DeepSeas's primary category is MDR and managed SOC and Stellar Cyber's is SIEM.
Who owns DeepSeas and Stellar Cyber?
Stellar Cyber is privately held.
Who are DeepSeas and Stellar Cyber sold to?
From its own pages, DeepSeas sells mainly to growing organizations with mixed environments that are run by lean security teams. Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have DeepSeas and Stellar Cyber announced recently?
October 5, 2026: Stellar Cyber announced version 7.0 of its security operations platform, adding AI case triage, case metrics and expanded automated response.

About DeepSeas

DeepSeas sells cybersecurity services that range from strategic guidance to offensive testing and 24/7 defense, aimed at lean teams protecting complex environments. DeepSeas Complete is a cyber defense program built on Endpoint MDR. DeepSeas Complete combines Vulnerability Management, Penetration Testing, Managed SIEM, Endpoint MDR, Threat Intelligence and a dedicated Strategic Advisor into one security program.[1][3][5][6][8][10]

DeepSeas offers 24/7 MDR for growing organizations with mixed environments, operated by lean security teams on the stack they already own. DeepSeas MDR is one service across IT, cloud, identity, mobile devices and OT environments, including production floors and medical systems. DeepSeas states that it is vendor agnostic: when a customer already runs an EDR or SIEM, DeepSeas operates and tunes it, and when a customer does not, DeepSeas brings its own. DeepSeas MDR begins monitoring in about two weeks, depending on environment complexity. DeepSeas contains threats on the customer's behalf, or gives the customer's team clear steps to handle them. DeepSeas MDR can optionally isolate a host or lock an account, on pre-approved playbooks. DeepSeas continuously tunes detection rules, uses AI to refine alerts, and has analysts validate what matters before it reaches the customer. Detections and alerts come together in the DeepSeas platform, a single place to view security operations.[1][7][12]

The CyberFusion SOC emphasizes proactive threat hunting, engaging across different teams to stay ahead of potential threats. The CyberFusion SOC provides solutions based on client-specific needs, industry verticals and risk appetites. The CyberFusion SOC uses an integrated, cyclical model with interconnected components like threat intelligence, detection engineering and incident response. DeepSeas threat intelligence analysts study how adversaries operate and gather the data on the DeepSeas platform. DeepSeas has a team of reverse engineers, threat analysts and forensics experts that continuously strengthens its threat intelligence base. DeepSeas analysts write a new detection rule when a hypothesis is confirmed. DeepSeas validated findings become detection rules that deploy automatically across every monitored environment. DeepSeas describes threat hunting as active and human-led, with analysts searching for adversaries that never triggered an alert. DeepSeas turns proprietary and public sources of threat intelligence into tuned detection rules. DeepSeas sources threat intelligence from government, commercial and dark-web channels.[6][8][9]

DeepSeas combines real attacker tradecraft with manual validation to uncover the hidden attack paths automated testing often misses. DeepSeas offensive testers work across networks, apps, APIs, wireless, cloud, people and physical access. DeepSeas states that its testers are continuously certified, with certifications such as OSCP, OSCE and OSWP. DeepSeas tests by hand to cut false positives and catch what automation misses.[10]

DeepSeas offers audit readiness and compliance support for SOC 2, ISO 27001, HIPAA, NIS2 and regulated industries. DeepSeas automated control mapping links controls to each standard, and continuous monitoring flags gaps as they surface. DeepSeas experts guide the fixes, get evidence in order, and stay through the external audit with advisory support. DeepSeas packages automated control mapping and evidence into auditor-ready reports. DeepSeas provides board-level guidance, security architecture and program design aligned with business risk.[11][12]

DeepSeas Complete starts with Endpoint MDR and puts 50+ services within reach, all under one agreement and one pool of credits. In DeepSeas Complete, Endpoint MDR is the only service a buyer has to buy, and everything else is optional. Every service in DeepSeas Complete runs on credits, which buyers purchase in blocks sized to their program. DeepSeas Complete managed services add SIEM, network, cloud and identity coverage as needed. Elective Credits can be applied across 50+ services, including security testing, assessments and advisory engagements. Elective Credits remain available throughout the contract term and carry between contract years on multi-year agreements. DeepSeas needs a user count to size the baseline for DeepSeas Complete, and deployment begins on signature.[1][2][5][7][9][10][12][13]

DeepSeas on the record

Sources

DeepSeas full record

  1. [1]deepseas.comDeepSeas · deepseas.com · undated page, accessed November 11, 2026 · Tier A
  2. [2]New cyber defense brand deepseas to unite newly acquired commercial managed threat services business from booz allen hamilton with security on demandDeepSeas · deepseas.com · published December 8, 2022 · Tier A
  3. [3]Multinational pharma company chooses deepseas for vulnerability management attack surface reductionDeepSeas · deepseas.com · undated page, accessed November 11, 2026 · Tier A
  4. [4]Why Choose Our MDR Platform | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  5. [5]DeepSeas Complete: Security That Keeps Pace | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  6. [6]All-in-One Cyber Defense Platform | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  7. [7]MDR Solution for Enterprise Teams | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  8. [8]Cyber Fusion SOC Platform | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  9. [9]Threat Intelligence & Threat Hunting Solution | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  10. [10]Offensive Security & Pen Testing | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  11. [11]Top MDR & Cyber Defense Solutions | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  12. [12]GRC & Cyber Defense Integration | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A
  13. [13]Strategic Security Advisory & Cyber Leadership | DeepSeasDeepSeas · undated page, accessed November 11, 2026 · Tier A

Stellar Cyber full record

  1. [1]ProductStellar Cyber · stellarcyber.ai · published February 25, 2026 · Tier A
  2. [2]Stellar cyber announces agentic ai autonomous soc in 6 4 0 releaseStellar Cyber · stellarcyber.ai · published March 16, 2026 · Tier A
  3. [3]Stellar cyber named one of americas best startup employersStellar Cyber · stellarcyber.ai · published November 21, 2024 · Tier A
  4. [4]ISOC Platform with AI SIEM, NDR, Open XDR & Multi-Layer AIStellar Cyber · undated page, accessed October 29, 2026 · Tier A
  5. [5]Stellar Cyber Automation-driven SecOps PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  6. [6]Stellar Cyber vs Sumo Logic: Expert SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  7. [7]Stellar Cyber vs Splunk: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  8. [8]Integrated Security Operations Center (ISOC) PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  9. [9]SC vs Microsoft Sentinel: Comprehensive SIEM SolutionStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  10. [10]SC vs. CrowdStrike | Compare Leading Cybersecurity PlatformsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  11. [11]EDR Software, Endpoint Detection & ResponseStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  12. [12]Stellar Cyber Autonomous SOC PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  13. [13]Stellar Cyber Multi-Layer AI™ | Advanced AI Platform for SecOpsStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  14. [14]Stellar Cyber AI SIEM | AI-Driven SIEM PlatformStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  15. [15]Stellar Cyber vs AlienVault: In-Depth SIEM Solution ComparisonStellar Cyber · undated page, accessed November 10, 2026 · Tier A
  16. [16]Stellar Cyber 7.0 Makes the Agentic SOC Measurable, Actionable and Operational at ScaleStellar Cyber · published October 5, 2026 · Tier A

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