CISO Tribune

Vendor comparison · 2 companies

Rival Security vs Tamnoon

Rival Security sells the Agent Harness, a platform that gives customers the capabilities and context to run security agents. Tamnoon sells an engine that investigates findings from existing scanners and runs remediations it has proven safe through the customer's own change process. CISO Tribune files both under Exposure prioritisation and CTEM. 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.

Change the companies

Up to four companies side by side.

  • Rival Security
  • Tamnoon
Rival Security vs Tamnoon: 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.securityTamnoonTamnoon sells an engine that investigates findings from existing scanners and runs remediations it has proven safe through the customer's own change process.tamnoon.io
What it sells
  • Agent Harness[2][3]A platform for running security agents with the context of a customer's cloud, code and scanners.
  • Tami[4]Tamnoon's AI Cloud Security Agent, which enriches each alert with context.
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 pagesNot stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pagesNot stated on its pages
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 yetFrom its own pages, the company sells mainly to security teams that already run a cloud scanner, and it offers a page for each scanner it lists. One use case page addresses teams facing more criticals than any team can absorb. This is our reading of the pages, not a recommendation.
Last verified
November 5, 2026September 27, 2026

Where they overlap

  • Exposure prioritisation and CTEM is the primary category of both Rival Security and Tamnoon.

Where they differ, field by field

  • Rival Security is also filed under Vulnerability management and AI SOC analysts. Tamnoon is also filed under Managed security service providers.
  • Rival Security lists Agent Harness. Tamnoon lists Tami.

How they differ

CISO Tribune files both Rival Security and Tamnoon under Exposure prioritisation and CTEM as their primary category. Rival Security sells Agent Harness, a platform for running security agents with the context of a customer's cloud, code and scanners. Agent Harness hands the work to specialist subagents, and Rival offers built-in agents for starting a workflow. Rival engineers build custom agents for a customer's environment and stack at no additional cost, and customers can also build their own.

Tamnoon sells Tami, an AI Cloud Security Agent that enriches each alert with context. It also sells an engine that investigates findings from existing scanners and runs remediations it has proven safe through the customer's own change process. CISO Tribune also files Tamnoon under Managed security service providers, and Tamnoon's CloudPros oversee the AI-powered remediation process.

Both companies work with a customer's existing scanner data, but Rival Security describes a platform of agents that customers can extend, while Tamnoon describes an engine that declines findings it cannot prove safe. Tamnoon was established in 2021, and its investors include cybersecurity industry experts and angel investors. One media enterprise used Tamnoon's managed cloud security service to move from Check Point CloudGuard to Wiz.

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.

Questions about Rival Security and Tamnoon

What do Rival Security and Tamnoon sell?
Rival Security sells Agent Harness. Tamnoon sells Tami.
Are Rival Security and Tamnoon in the same category?
Yes. Exposure prioritisation and CTEM is the primary category of both on CISO Tribune.
Who are Rival Security and Tamnoon sold to?
From its own pages, the company sells mainly to security teams that already run a cloud scanner, and it offers a page for each scanner it lists.

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

Tamnoon full record

  1. [1]tamnoon.ioTamnoon · tamnoon.io · undated page, accessed September 27, 2026 · Tier A
  2. [2]Tamnoon integrates with crowdstrike falcon cloud security to extend cloud risk remediation workflows 302884275Tamnoon via PR Newswire · prnewswire.com · published September 22, 2026 · Tier A
  3. [3]Tamnoon | The Self-Healing Engine for Cloud ExposuresTamnoon · undated page, accessed October 29, 2026 · Tier A
  4. [4]How it heals | TamnoonTamnoon · undated page, accessed October 29, 2026 · Tier A
  5. [5]Integrations | TamnoonTamnoon · undated page, accessed October 29, 2026 · Tier A
  6. [6]After a fix broke production | TamnoonTamnoon · undated page, accessed November 10, 2026 · Tier A
  7. [7]How Zinnia Resolves 65% of High-Severity Misconfigurations | TamnoonTamnoon · undated page, accessed November 10, 2026 · Tier A
  8. [8]Media Conglomerate Migrates from Check Point to Wiz | TamnoonTamnoon · undated page, accessed November 10, 2026 · Tier A
  9. [9]About: the healing gap | TamnoonTamnoon · undated page, accessed November 10, 2026 · Tier A
  10. [10]The Security Leader’s Guide to Securing Cloud EnvironmentsTamnoon · undated page, accessed November 10, 2026 · Tier A

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