CISO Tribune

Vendor comparison · 2 companies

ReliaQuest vs Splunk

ReliaQuest sells GreyMatter, an agentic AI security operations platform that allows security teams to detect, contain, investigate and respond to threats, regardless of the data source. Splunk sells a data platform for security, observability, and AI, and says the platform unifies petabyte-scale machine data wherever it lives. CISO Tribune files both under SOAR and security automation. 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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  • ReliaQuest
  • Splunk
ReliaQuest vs Splunk: Products, Customers and Funding Compared
ReliaQuestReliaQuest sells GreyMatter, an agentic AI security operations platform that allows security teams to detect, contain, investigate and respond to threats, regardless of the data source.reliaquest.comSplunkSplunk sells a data platform for security, observability, and AI, and says the platform unifies petabyte-scale machine data wherever it lives.splunk.com
What it sells
  • GreyMatter[1][2][3][4][6][7][8][9][10][11]An agentic AI security operations platform for security teams to detect, contain, investigate and respond to threats.
  • GreyMatter Detect[6][9]Centralizes all created rule logic in a library from any author.
  • Universal Translator[2][3]A patented way to normalize data collected from any source or technology.
  • Splunk Cloud Platform[12][22][23][24]A platform to collect, index, and visualize data in the cloud.
  • Splunk Enterprise[1][12][14][17][18][22][24]A platform to collect, index, and visualize data using an on-premises engine.
  • Splunk Enterprise Security[1][14][17][18]A Splunk solution for security operations.
  • Federated Search[15][19]A search layer across the data estate.
  • Splunk AI Assistant[19]A natural-language entry point to the search workflow.
  • Splunk Edge Processor[21]A processor that applies cryptographic functions to data as it flows on-premises.
  • Splunk AI Toolkit[20]Guided workflows to build and deploy models.
  • Splunk Log Observer Connect[22]An integration that links logs to Splunk Observability Cloud.
Categories
Headquarters
Not stated on its pagesSan Jose, United States[4]
Founded
Not stated on its pages2003[3]
Ownership and funding
Not stated on its pagesOwned by Cisco[2][15][16][25]
Named customers
Not stated on its pages
Recent news
  • August 14, 2026Florida State Athletics named ReliaQuest its official jersey patch partner for men's basketball starting with the 2026-27 season.[12]
  • September 15, 2026Cisco released Cisco AI POD for Splunk, which brings Splunk AI features to on-premises customers on Cisco infrastructure with NVIDIA computing.[10]
  • May 28, 2026Splunk reported that Cisco has completed its acquisition of Galileo, with plans to integrate Galileo technology into Splunk Observability.[25]
  • April 9, 2026Cisco agreed to buy AI observability startup Galileo Technologies to add its agent monitoring tools to the Splunk observability platform.[11]
  • February 18, 2026Splunk announced that its hosted AI models are generally available for Splunk Cloud Platform customers.[23]
  • January 16, 2026Splunk announced the release of Splunk Enterprise 10.2 and Splunk Cloud Platform 10.2.[24]
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
  • G2: listed, seen November 3, 2026[16]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
ReliaQuest describes enterprises that adopt tools to keep up with evolving demands. ReliaQuest addresses organizations that manage security across multiple business units. ReliaQuest describes multicloud and multi-SIEM environments as ones that GreyMatter covers. ReliaQuest addresses organizations that run both OT and IT environments, including threats targeting critical infrastructure. ReliaQuest sells GreyMatter for environments that connect sources like SIEM, EDR, network security, and cloud tools.From its own pages, Splunk sells mainly to organisations that want security, observability, and AI data on one platform. Splunk describes SOC teams that index authentication and firewall data for real-time detections. Splunk describes a healthcare organization that monitors logs from medical devices. Splunk offers material for CISOs and boards on priorities, budgeting, compliance, and success metrics. Splunk describes deployments on Splunk Enterprise and Splunk Cloud Platform.
Last verified
November 6, 2026October 10, 2026

Where they overlap

  • ReliaQuest and Splunk are both filed under SOAR and security automation.

Where they differ, field by field

  • ReliaQuest's primary category is AI SOC analysts; Splunk's is SIEM.
  • ReliaQuest is also filed under External attack surface management and Digital risk protection. Splunk is also filed under Security data lakes and pipelines.
  • ReliaQuest lists GreyMatter, GreyMatter Detect and Universal Translator. Splunk lists Splunk Cloud Platform, Splunk Enterprise, Splunk Enterprise Security, Federated Search, Splunk AI Assistant and 3 more.
  • Splunk is headquartered in San Jose, United States.
  • Splunk was founded in 2003.
  • Splunk is owned by Cisco.
  • Splunk publicly names Carrefour, Intel, FINRA, Alaska Airlines and Honda of Alabama.

What it sells: ReliaQuest

What GreyMatter does[1][2][3][4][6][7][8][9][10][11]
GreyMatter includes 6 agentic Teammates that use hundreds of agent skills and AI tools to work toward an objective, not just tasks. GreyMatter detects threats wherever data lives, whether in the cloud, on the endpoint, inside a SIEM, directly at the source, or in transit. GreyMatter unifies detection, response, and visibility across a multicloud and multi-SIEM environment.
What GreyMatter Detect does[6][9]
GreyMatter Detect centralizes all created rule logic in its library from any author. GreyMatter Detect allows customers to test and validate detections before and after deployment and monitors their performance continuously.

What it sells: Splunk

What Splunk Cloud Platform does[12][22][23][24]
Splunk Cloud Platform is described as a way to collect, index, and visualize data in the cloud. Splunk says data can be brought in with agents, Splunk-supported integrations, and developer add-ons.
What Splunk Enterprise Security does[1][14][17][18]
Splunk names Splunk Enterprise Security among its solutions that use pre-written macros. Splunk describes AI Assistant in Security as available to cloud customers of Splunk Enterprise Security.
What Federated Search does[15][19]
Federated Search is described as the unifying search layer across the data estate. It covers Splunk-managed locations and supported customer-managed stores such as Amazon S3 and Snowflake.
What Splunk AI Assistant does[19]
Splunk AI Assistant provides a natural-language entry point to the search workflow. With Agent Mode enabled, an analyst can describe the investigation to perform instead of constructing each search.

Questions about ReliaQuest and Splunk

What do ReliaQuest and Splunk sell?
ReliaQuest sells GreyMatter, GreyMatter Detect and Universal Translator. Splunk sells Splunk Cloud Platform, Splunk Enterprise, Splunk Enterprise Security, Federated Search, Splunk AI Assistant and 3 more.
Are ReliaQuest and Splunk in the same category?
They share SOAR and security automation. ReliaQuest's primary category is AI SOC analysts and Splunk's is SIEM.
Where are ReliaQuest and Splunk headquartered?
Splunk is headquartered in San Jose, United States.
When were ReliaQuest and Splunk founded?
Splunk was founded in 2003.
Who owns ReliaQuest and Splunk?
Splunk is owned by Cisco.
Which customers do ReliaQuest and Splunk name?
Splunk publicly names Carrefour, Intel, FINRA, Alaska Airlines and Honda of Alabama.
Who are ReliaQuest and Splunk sold to?
ReliaQuest describes enterprises that adopt tools to keep up with evolving demands. From its own pages, Splunk sells mainly to organisations that want security, observability, and AI data on one platform.
What have ReliaQuest and Splunk announced recently?
August 14, 2026: Florida State Athletics named ReliaQuest its official jersey patch partner for men's basketball starting with the 2026-27 season. September 15, 2026: Cisco released Cisco AI POD for Splunk, which brings Splunk AI features to on-premises customers on Cisco infrastructure with NVIDIA computing.

About ReliaQuest

ReliaQuest sells GreyMatter, an agentic AI security operations platform that allows security teams to detect, contain, investigate and respond to threats, regardless of the data source. ReliaQuest states that it exists to Make Security Possible, allowing enterprise security teams to detect, contain and respond to threats using GreyMatter. GreyMatter includes 6 agentic Teammates that use hundreds of agent skills and AI tools to work toward an objective, not just tasks. GreyMatter includes persona-based agentic AI Teammates built on 10+ years of proprietary incident response data. GreyMatter collects data from any source or technology and normalizes it with the patented Universal Translator.[1][2][4]

GreyMatter detects threats wherever customer data lives, whether in the cloud, on the endpoint, inside a SIEM, directly at the source, or in transit. GreyMatter unifies threat detection, investigation, hunting, and containment across a customer's environment without requiring data to be moved. GreyMatter Detect centralizes all created rule logic in its library from any author. GreyMatter Detect allows customers to test and validate detections before and after deployment and monitors their performance continuously. ReliaQuest describes detecting threats at the source or in transit and moving and storing only what matters. ReliaQuest designs GreyMatter to be vendor-neutral. Customers connect GreyMatter with sources like SIEM, EDR, network security, and cloud tools.[6][7]

GreyMatter investigates, documents, and responds to routine alerts autonomously. GreyMatter automates phishing triage and applies shared intel for proactive defense across the ReliaQuest customer base. GreyMatter connects the steps between detection, investigation, and response with workflows tailored to the customer's business. ReliaQuest names Slack and Microsoft Teams as integrated tools for communication between users and business units. GreyMatter translates, normalizes, and correlates data to give a team a unified view. GreyMatter unifies tools such as email, network, and endpoint into one command system. GreyMatter lets teams find and fix vulnerabilities, prioritize what is exploitable, and validate risks.[4][8]

GreyMatter unifies detection, response, and visibility across a multicloud and multi-SIEM environment. GreyMatter correlates events across clouds and SIEMs, triggering automated playbooks. GreyMatter detects threats at the source across IaaS, PaaS, SaaS, and SIEM. GreyMatter integrates OT-specific technologies like Armis, Dragos, and Nozomi to enrich detection rules. GreyMatter correlates data from IT and OT sources, including firewalls, PLC logs, and remote access systems. GreyMatter bridges the gap between OT and IT environments. GreyMatter delivers metrics in a unified agentic AI SecOps platform. GreyMatter lets teams compare detection, investigation, and response performance across all entities to identify trends. GreyMatter lets teams benchmark data source visibility and coverage against peer organizations.[9][10][11]

ReliaQuest is headquartered in Tampa, FL, with operations centers in Tampa, Las Vegas, Salt Lake City, Dublin, London and Pune, India. ReliaQuest states a valuation of over $3.4 billion, over 1,200 team members and over 1,000 customers. ReliaQuest states revenue growth to more than $400M in 2025. Brian Foster is responsible for overseeing all areas of ReliaQuest's product development and technical operations. ReliaQuest states four values: being accountable, helpful, adaptable, and focused.[2][5][9][10][11]

ReliaQuest on the record

Sources

ReliaQuest full record

  1. [1]Reliaquest launches first autonomous self learning ai agent for security operationsReliaQuest · reliaquest.com · published September 26, 2024 · Tier A
  2. [2]reliaquest.comReliaQuest · reliaquest.com · undated page, accessed November 6, 2026 · Tier A
  3. [3]About UsReliaQuest · undated page, accessed November 10, 2026 · Tier A
  4. [4]Eliminate Tier 1 and Tier 2 Alerts with Agentic AI in ReliaQuest GreyMatterReliaQuest · undated page, accessed November 10, 2026 · Tier A
  5. [5]Home | ReliaQuest GreyMatter: The Agentic AI Security Operations Platform for Agentic DefenseReliaQuest · undated page, accessed November 10, 2026 · Tier A
  6. [6]Detect Everything Everywhere with ReliaQuest GreyMatter - Powered by Agentic AIReliaQuest · undated page, accessed November 10, 2026 · Tier A
  7. [7]ReliaQuest GreyMatter Integrations: Your Environment + Agentic AI Powered Security OperationsReliaQuest · undated page, accessed November 10, 2026 · Tier A
  8. [8]Agentic AI Solutions for SecOps - ReliaQuestReliaQuest · undated page, accessed November 10, 2026 · Tier A
  9. [9]Unified Multi-Cloud and Multi-SIEM Management with Agentic AI in ReliaQuest GreyMatterReliaQuest · undated page, accessed November 10, 2026 · Tier A
  10. [10]Securing Operational Technology with ReliaQuest GreyMatter, the Agentic AI PlatformReliaQuest · undated page, accessed November 10, 2026 · Tier A
  11. [11]Measure and Enhance SecOps Metrics with ReliaQuest GreyMatter - Powered by Agentic AIReliaQuest · undated page, accessed November 10, 2026 · Tier A
  12. [12]Florida State Athletics Announces Historic Jersey Patch Partnership with ReliaQuestReliaQuest · published August 14, 2026 · Tier A
  13. [13]ReliaQuest GreyMatter Reviews & Product DetailsG2 · undated page, accessed November 10, 2026 · Tier C

Splunk full record

  1. [1]ProductsSplunk · splunk.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Cisco completes acquisition of splunkCisco · newsroom.cisco.com · published March 18, 2024 · Tier A
  3. [3]Get the most out of splunk infrastructure monitoring and splunk itsiSplunk · splunk.com · published November 17, 2020 · Tier A
  4. [4]Contact usSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  5. [5]CarrefourSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  6. [6]IntelSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  7. [7]FinraSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  8. [8]Alaska airlinesSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  9. [9]HondaSplunk · splunk.com · undated page, accessed October 10, 2026 · Tier A
  10. [10]Cisco delivers trusted ai at scale through new splunk advancementsCisco · newsroom.cisco.com · published September 15, 2026 · Tier A
  11. [11]Cisco buys galileo strengthen splunks agentic monitoring capabilitiesSiliconANGLE · siliconangle.com · published April 9, 2026 · Tier B
  12. [12]Get Data In | Platform (last updated lastModifiedISO)Splunk · undated page, accessed October 28, 2026 · Tier A
  13. [13]Analytics Story: Warzone RAT | Splunk Security ContentSplunk · published May 13, 2026 · Tier A
  14. [14]Analytics Story: Trickbot | Splunk Security ContentSplunk · published May 13, 2026 · Tier A
  15. [15]Splunk | Data Platform for Security, Observability & AISplunk · undated page, accessed October 28, 2026 · Tier A
  16. [16]Splunk Enterprise Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed October 28, 2026 · Tier C
  17. [17]Using advanced macros - Splunk LanternSplunk Lantern · undated page, accessed November 3, 2026 · Tier A
  18. [18]L’IA au service de la sécurité | SplunkSplunk · undated page, accessed November 3, 2026 · Tier A
  19. [19]Investigating and searching across your data estate with Cisco Data Fabric powered by the Splunk platform - Splunk LanternSplunk Lantern · undated page, accessed November 3, 2026 · Tier A
  20. [20]Preparing data for use with the Splunk AI Toolkit - Splunk LanternSplunk Lantern · undated page, accessed November 3, 2026 · Tier A
  21. [21]De-identifying PII consistently with hashing in Edge Processor - Splunk LanternSplunk Lantern · undated page, accessed November 3, 2026 · Tier A
  22. [22]Using Log Observer Connect with Cloud Platform - Splunk LanternSplunk Lantern · undated page, accessed November 3, 2026 · Tier A
  23. [23]Splunk Launches Hosted Generative AI Models: Native-AI Insights, Zero Setup, Maximum SecuritySplunk · published February 18, 2026 · Tier A
  24. [24]Announcing Splunk Enterprise 10.2 & Splunk Cloud Platform 10.2 – Next Generation Querying & AnalyticsSplunk · published January 16, 2026 · Tier A
  25. [25]Splunk Observability + Galileo: Bridging the AI Trust GapSplunk · published May 28, 2026 · Tier A

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