CISO Tribune

Vendor comparison · 2 companies

Rackspace Technology vs Stellar Cyber

Rackspace Technology is the operator of the full enterprise AI stack, from governed private cloud to AI inference and agents in production. 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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  • Rackspace Technology
  • Stellar Cyber
Rackspace Technology vs Stellar Cyber: Products, Customers and Funding Compared
Rackspace TechnologyRackspace Technology is the operator of the full enterprise AI stack, from governed private cloud to AI inference and agents in production.rackspace.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
  • Security and Resiliency[5][6]Rackspace integrates 24x7x365 security operations and cyber recovery across the environments it operates.
  • Rackspace Managed Extended Detection and Response[6]A 24x7x365 service built on Microsoft Sentinel.
  • Managed Operations[5][8]Operates infrastructure, applications and data with integrated security, reliability, performance and ongoing optimization.
  • Platform Automation[5][9]A platform engineering service delivered through a dedicated Rackspace Elastic Engineering pod.
  • Forward Deployed EngineeringEngineers work beside customer teams to build, run and improve AI in production.
  • 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
Public (NASDAQ: RXT)[2][3][4][5][7][8][9][10][12]Privately held[3][4]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • January 16, 2026Rackspace Technology's UK Sovereign Services achieved VMware Sovereign Cloud Partner Status.[11]
  • 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: listed, seen November 10, 2026[12]
  • 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
Not written yetStellar 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
October 14, 2026November 9, 2026

Where they overlap

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

Where they differ, field by field

  • Rackspace Technology's primary category is Managed security service providers; Stellar Cyber's is SIEM.
  • Rackspace Technology is also filed under Security consulting and advisory. Stellar Cyber is also filed under AI SOC analysts.
  • Rackspace Technology lists Security and Resiliency, Rackspace Managed Extended Detection and Response, Managed Operations, Platform Automation and Forward Deployed Engineering. Stellar Cyber lists Stellar Cyber Open XDR Platform.
  • Rackspace Technology is a public company listed on NASDAQ as RXT. Stellar Cyber is privately held.

What it sells: Rackspace Technology

What Rackspace Managed Extended Detection and Response does[6]
Rackspace Managed Extended Detection and Response integrates more than 300 security technologies and log sources and uses AI-assisted detections mapped to the MITRE ATT&CK framework. The service supports proactive threat hunting and automated response through the Rackspace Cyber Defense Center.
What Managed Operations does[5][8]
Rackspace provides 24x7x365 operations across every environment, with one accountable team. Rackspace runs managed operations across AWS, Google Cloud, Microsoft and VMware under one accountable team.
What Platform Automation does[5][9]
Rackspace designs, builds and operates platforms that provide self-service provisioning, infrastructure as code, delivery pipelines, Kubernetes, policy automation and observability across private and public cloud. Rackspace supports AWS, Microsoft Azure, Google Cloud and Rackspace Private Cloud, along with Kubernetes across cloud and on-premises environments.

Questions about Rackspace Technology and Stellar Cyber

What do Rackspace Technology and Stellar Cyber sell?
Rackspace Technology sells Security and Resiliency, Rackspace Managed Extended Detection and Response, Managed Operations, Platform Automation and Forward Deployed Engineering. Stellar Cyber sells Stellar Cyber Open XDR Platform.
Are Rackspace Technology and Stellar Cyber in the same category?
They share MDR and managed SOC. Rackspace Technology's primary category is Managed security service providers and Stellar Cyber's is SIEM.
Who owns Rackspace Technology and Stellar Cyber?
Rackspace Technology is a public company listed on NASDAQ as RXT. Stellar Cyber is privately held.
Who are Rackspace Technology and Stellar Cyber sold to?
Stellar Cyber describes its open SecOps platform as built for lean security teams and MSSPs.
What have Rackspace Technology and Stellar Cyber announced recently?
January 16, 2026: Rackspace Technology's UK Sovereign Services achieved VMware Sovereign Cloud Partner Status. 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 Rackspace Technology

Rackspace Technology is the operator of the full enterprise AI stack, from governed private cloud to AI inference and agents in production. Rackspace offers advisory services, cloud migration and modernization, platform automation, data engineering, Rackspace Elastic Engineering, infrastructure and application managed services, FinOps, and security and resiliency services. Rackspace services span strategy, engineering and ongoing operations across public cloud, private cloud, on-premises and AI environments. Rackspace uses an Outcomes-as-a-Service model built on secure infrastructure, data foundations and forward-deployed engineering.[1]

Rackspace Security and Resiliency brings together 24x7x365 security operations from the Rackspace Cyber Defense Center, cyber resilience and recovery services powered by Rubrik, and security strategy, posture and compliance services across the environments Rackspace operates. Rackspace integrates 24x7x365 security operations and cyber recovery across the environments it operates. Rackspace Managed Extended Detection and Response is a 24x7x365 service built on Microsoft Sentinel. Rackspace Managed Extended Detection and Response integrates more than 300 security technologies and log sources and uses AI-assisted detections mapped to the MITRE ATT&CK framework. Rackspace Managed Extended Detection and Response supports proactive threat hunting and automated response through the Rackspace Cyber Defense Center.[1][6]

Rackspace provides managed cyber recovery services powered by Rubrik to protect and recover identity systems, collaboration data and cloud workloads. Rackspace cyber recovery capabilities include immutable backups, validated recovery points and isolated recovery environments. Rackspace security posture and compliance work covers architecture, zero trust, posture management and compliance. Rackspace extends identity, access, data protection and recovery controls to AI workloads while addressing risks specific to models and agents. Rackspace security operations use AI-assisted detection and response to support analyst triage and incident response.[1][6]

Rackspace operates infrastructure, applications and data with integrated security, reliability, performance and ongoing optimization. Rackspace provides 24x7x365 operations across every environment, with one accountable team. Rackspace runs private cloud on VMware Cloud Foundation. Rackspace offers private cloud that keeps data and operations inside the customer's jurisdiction. Rackspace works across Amazon Web Services (AWS), Microsoft Azure, Google Cloud and Rackspace Private Cloud. Rackspace runs managed operations across AWS, Google Cloud, Microsoft and VMware under one accountable team.

Rackspace Platform Automation is a platform engineering service delivered through a dedicated Rackspace Elastic Engineering pod. Rackspace designs, builds and operates platforms that provide self-service provisioning, infrastructure as code, delivery pipelines, Kubernetes, policy automation and observability across private and public cloud. A Rackspace Elastic Engineering pod is a dedicated, multidisciplinary team that can include an engagement manager, cloud architects and engineers working in sprints alongside the customer's team. Rackspace data engineering modernizes databases, analytics and data platforms and builds governed data foundations for applications, analytics and AI. Rackspace offers services that define cloud and AI strategy, prioritize use cases, establish governance and plan workload placement, modernization and operating models. Rackspace offers AMD Instinct GPU capacity on bare metal, Kubernetes or on demand.

Rackspace can work alongside customer teams or take responsibility for ongoing operations, depending on the service and requirements. Rackspace is vendor-neutral and model-agnostic, owns no foundation model, and works with the technologies customers already run or want to add. Rackspace runs sixteen data centers across North America, Europe and Asia Pacific, along with sovereign environments and on-premises options. Rackspace serves customers in more than 120 countries. Rackspace describes keeping Epic and clinical platforms available and patient data protected. Rackspace describes sovereign, accredited cloud for citizen services, run by cleared teams. Rackspace describes a UK bank that migrated more than 1,200 workloads to a modern private cloud environment. Central and North West London NHS Foundation Trust (CNWL) provides integrated healthcare services. CNWL moved from a legacy server-based system to a more modern private cloud environment. CNWL chose Rackspace Technology as its partner for the migration.

For more than 25 years, Rackspace has built and operated the technology businesses depend on every day. Rackspace was founded in San Antonio, helping businesses get their first critical websites online.[1][6]

Rackspace Technology on the record

Sources

Rackspace Technology full record

  1. [1]SecurityRackspace Technology · rackspace.com · undated page, accessed October 14, 2026 · Tier A
  2. [2]Rackspace technology announces plans accelerate enterprise aiGLOBE NEWSWIRE · ir.rackspace.com · published July 9, 2026 · Tier A
  3. [3]Rackspace Technology Reviews - Gartner Peer InsightsGartner Peer Insights · undated page, accessed November 2, 2026 · Tier C
  4. [4]Investor Relations | Rackspace Technology, Inc.Rackspace Technology · undated page, accessed November 10, 2026 · Tier A
  5. [5]Services – RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  6. [6]Security and Resiliency – RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  7. [7]RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  8. [8]About – RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  9. [9]Platform Automation – RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  10. [10]Central and North West London NHS Foundation Trust – RackspaceRackspace Technology · undated page, accessed November 10, 2026 · Tier A
  11. [11]Rackspace Technology Secures VMware Sovereign Cloud Partner StatusRackspace · published January 16, 2026 · Tier A
  12. [12]Rackspace Managed Private Cloud Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

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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