CISO Tribune

Vendor comparison · 2 companies

Rival Security vs VulnCheck

Rival Security sells the Agent Harness, a platform that gives customers the capabilities and context to run security agents. VulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities. CISO Tribune files both under Vulnerability management. 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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Up to four companies side by side.

  • Rival Security
  • VulnCheck
Rival Security vs VulnCheck: Products, Customers and Funding Compared
Rival SecurityRival Security sells the Agent Harness, a platform that gives customers the capabilities and context to run security agents.rival.securityVulnCheckVulnCheck sells a Cyber Threat Intelligence platform that provides exploit and vulnerability intelligence for prioritizing and remediating vulnerabilities.vulncheck.com
What it sells
  • Agent Harness[2][3]A platform for running security agents with the context of a customer's cloud, code and scanners.
  • Exploit & Vulnerability Intelligence[1][4][5][10][11][15]Early access to new vulnerability information not found in the NVD, with dozens of unique fields.
  • Initial Access Intelligence[1][5][8]In-house developed exploit PoCs, packet captures and Suricata signatures for initial access vulnerabilities.
  • VulnCheck for Government[16]Features, functionality and data available only to Government partners.
Categories
Headquarters
Not stated on its pagesLexington, United States[3]
Founded
Not stated on its pagesNot stated on its pages
Ownership and funding
Not stated on its pagesPrivately held[2]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • February 17, 2026VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.[19]
  • February 17, 2026VulnCheck announced a $25 million Series B round led by Sorenson Capital, with National Grid Partners and existing investors also taking part.[12]
  • February 17, 2026Axios reported that VulnCheck raised a $25 million Series B round led by Sorenson Capital.[14]
  • December 8, 2025VulnCheck announced two executive hires: Mike Price as Vice President of Product & Engineering and Jon Loehr as Vice President of Finance.[13]
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
Not written yetNot written yet
Last verified
November 5, 2026November 2, 2026

Where they overlap

  • Rival Security and VulnCheck are both filed under Vulnerability management.

Where they differ, field by field

  • Rival Security's primary category is Exposure prioritisation and CTEM; VulnCheck's is Threat intelligence.
  • Rival Security is also filed under AI SOC analysts.
  • Rival Security lists Agent Harness. VulnCheck lists Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
  • VulnCheck is headquartered in Lexington, United States.
  • VulnCheck is privately held.

What it sells: Rival Security

What Agent Harness does[2][3]
Every agent runs on Rival's Agent Harness. Agent Harness reads the context of a customer's cloud, code and scanners and hands the work to specialist subagents.

What it sells: VulnCheck

What Exploit & Vulnerability Intelligence does[1][4][5][10][11][15]
Exploit & Vulnerability Intelligence is offered for decisions on which vulnerabilities need immediate remediation. It gives early access to new vulnerability information not found in the NVD, along with dozens of unique fields. It includes an exploitation timeline covering when a vulnerability was first disclosed, when evidence of exploitation was first discovered and when it was remediated.
What Initial Access Intelligence does[1][5][8]
VulnCheck develops exploit PoCs, packet captures, and Suricata signatures in house. They are used to defend against initial access vulnerabilities.
What VulnCheck for Government does[16]
VulnCheck for Government includes features, functionality and data. They are available only to VulnCheck's Government partners.

Questions about Rival Security and VulnCheck

What do Rival Security and VulnCheck sell?
Rival Security sells Agent Harness. VulnCheck sells Exploit & Vulnerability Intelligence, Initial Access Intelligence and VulnCheck for Government.
Are Rival Security and VulnCheck in the same category?
They share Vulnerability management. Rival Security's primary category is Exposure prioritisation and CTEM and VulnCheck's is Threat intelligence.
Where are Rival Security and VulnCheck headquartered?
VulnCheck is headquartered in Lexington, United States.
Who owns Rival Security and VulnCheck?
VulnCheck is privately held.
What have Rival Security and VulnCheck announced recently?
February 17, 2026: VulnCheck announced it raised $25 million in new funding to scale its growth and expand its intelligence capabilities.

About Rival Security

Rival Security sells the Agent Harness, a platform that gives customers the capabilities and context to run security agents. Rival Security describes its purpose as automating workflows, investigating vulnerabilities, tracking down owners and remediating. Rival Security says more agents are ready to slot into a security program, and that customers can mix, match and run them alongside their team.[3]

Rival Security states that AI turns a CVE into a working exploit in hours.[3]

Every agent runs on Rival's Agent Harness. Agent Harness reads the context of a customer's cloud, code and scanners. Agent Harness hands the work to specialist subagents.[3]

Rival provides agents that customers can customize and extend. Rival engineers build custom agents for a customer's environment and stack at no additional cost. Customers can also build their own agents using Rival's capabilities to accelerate a workflow.[3]

Rival offers built-in agents for starting a workflow. One workflow cuts scanner noise down to what is exploitable.[1][3]

Rival Security on the record

Sources

Rival Security full record

  1. [1]TermsRival Security · rival.security · published July 1, 2026 · Tier A
  2. [2]rival.securityRival Security · rival.security · undated page, accessed November 5, 2026 · Tier A
  3. [3]Rival Security: The agent harness for cybersecurityRival Security · undated page, accessed November 10, 2026 · Tier A

VulnCheck full record

  1. [1]vulncheck.comVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]Series aVulnCheck · vulncheck.com · published March 18, 2025 · Tier A
  3. [3]PrivacyVulnCheck · vulncheck.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]Introduction - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  5. [5]VulnCheck - Outpace AdversariesVulnCheck · undated page, accessed October 30, 2026 · Tier A
  6. [6]Canary Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  7. [7]Target Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  8. [8]Initial Access Intelligence - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  9. [9]Query Parameters - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  10. [10]Package Manager Support - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  11. [11]NVD Migration - VulnCheck DocsVulnCheck · undated page, accessed October 30, 2026 · Tier A
  12. [12]VulnCheck Raises $25M Series B Financing to Address Surging Demand for its Exploit Intelligence SolutionsVulnCheck · published February 17, 2026 · Tier A
  13. [13]VulnCheck Announces Strategic Leadership Appointments to Accelerate GrowthVulnCheck · published December 8, 2025 · Tier A
  14. [14]Exclusive: VulnCheck nabs $25M Series B fundingAxios · published February 17, 2026 · Tier B
  15. [15]Exploit & Vulnerability Intelligence | Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  16. [16]Products | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  17. [17]Company | VulnCheckVulnCheck · undated page, accessed November 10, 2026 · Tier A
  18. [18]Service Terms | VulnCheckVulnCheck · published April 20, 2026 · Tier A
  19. [19]VulnCheck raises $25M to expand real-time exploit intelligence platformSiliconANGLE · published February 17, 2026 · Tier B

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