CISO Tribune

Vendor comparison · 2 companies

Knostic vs Zenity

Knostic discovers and secures agents, coding assistants, and their supply chain, from MCP to skills and Code to Cowork. Zenity sells an AI agent security platform built to govern how agents behave, not just what they say or generate. CISO Tribune files both under AI model and agent security and AI governance. 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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  • Knostic
  • Zenity
Knostic vs Zenity: Products, Customers and Funding Compared
KnosticKnostic discovers and secures agents, coding assistants, and their supply chain, from MCP to skills and Code to Cowork.knostic.aiZenityZenity sells an AI agent security platform built to govern how agents behave, not just what they say or generate.zenity.io
What it sells
  • Kirin[4][5][6][7][11]Runs on the endpoint inside supported agents. Denies or blocks unsafe agent actions.
  • AgentMesh[4][5][6][7][11]Rates every skill, server, and extension.
  • AI Observability[5]Builds a live inventory of every agent across an organization's environment and tracks the data those agents access.
  • AI Security Posture Management (AISPM)[7]Evaluates configuration, permissions, and integrations before an agent goes live.
  • Boundaries[4][6][8]Evaluates every agent action in real time against an organization's rules and decides to let it through, block it, or shut the agent down.
  • AI Detection and Response (AIDR)[9]AIDR reads the full sequence of an agent's activity, detecting threats mapped to the OWASP LLM and MITRE ATLAS frameworks.
  • Zenity Security Assessment Hub[13]A set of 10 free, open-source tools built by Zenity Labs to help security teams identify and understand immediate risks.
Categories
Headquarters
Reston, United States[3]Not stated on its pages
Founded
2023[2][7]2021[2]
Ownership and funding
Privately held[5]Privately held[3][6][17]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
  • June 12, 2026Knostic was recognized in the Cloud Security Alliance's first Agentic AI Security Innovator Market Map.[10]
  • September 23, 2026Zenity was named a Market Shaper in Gartner's inaugural Emerging Market Quadrant for AI Application Security.[15]
  • August 3, 2026Zenity announced a $125 million Series C round led by Norwest.[14]
  • June 17, 2026Zenity and Carahsoft announced a partnership under which Carahsoft serves as Zenity's Public Sector distributor.[17]
  • March 17, 2026Zenity announced general availability of runtime security controls for AI agents built on Microsoft Foundry.[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, the company sells mainly to developers and teams that use AI coding agents and IDEs, with plans written for individual developers, growing teams, and engineering managers. Its pages describe developers and business users who install agents, extensions, MCP servers, and skills from open ecosystems. It lists an inventory export described as a register of AI systems for compliance and risk reporting. Its stated support covers macOS and Windows.Zenity describes a global financial services firm and a global asset manager as organizations that write policy rules for agents. Zenity covers agents embedded in SaaS tools, home-grown agentic platforms in the cloud, and end-user devices. Zenity gives security and platform teams a single place to surface, enforce, and protect MCP usage.
Last verified
September 27, 2026November 9, 2026

Where they overlap

  • AI model and agent security is the primary category of both Knostic and Zenity; both are also filed under AI governance.
  • Both are privately held.

Where they differ, field by field

  • Knostic lists Kirin and AgentMesh. Zenity lists AI Observability, AI Security Posture Management (AISPM), Boundaries, AI Detection and Response (AIDR) and Zenity Security Assessment Hub.
  • Knostic is headquartered in Reston, United States.
  • Knostic was founded in 2023. Zenity was founded in 2021.

How they differ

CISO Tribune files both Knostic and Zenity under AI model and agent security, AI governance, with AI model and agent security as the primary category for each. Knostic sells Kirin, which runs on the endpoint inside supported agents and denies or blocks unsafe agent actions, and AgentMesh, which rates every skill, server, and extension. Zenity sells AI Observability, AI Security Posture Management (AISPM), Boundaries, and AI Detection and Response (AIDR), along with the free, open-source Zenity Security Assessment Hub built by Zenity Labs. Both address runtime control of agent actions and prompt injection, but Knostic centers on endpoint tools such as Cursor and VS Code, while Zenity describes coverage across SaaS, cloud-based agentic platforms, and end-user devices.

Knostic is headquartered in Reston, United States, was founded in 2023, and is privately held. Zenity was founded in 2021 and is also privately held. Zenity announced a $125 million Series C round led by Norwest on August 3, 2026. Zenity names Fortune 500 and Fortune 50 enterprises among the organizations it secures, and describes a global financial services firm and a global asset manager as customers that write policy rules for agents. Knostic describes its sales as aimed at developers and teams that use AI coding agents and IDEs, with plans for individual developers, growing teams, and engineering managers.

On June 12, 2026, Knostic was recognized in the Cloud Security Alliance's first Agentic AI Security Innovator Market Map. On September 23, 2026, Zenity was named a Market Shaper in Gartner's inaugural Emerging Market Quadrant for AI Application Security. Zenity and Carahsoft announced a partnership on June 17, 2026, under which Carahsoft serves as Zenity's Public Sector distributor.

What it sells: Knostic

What Kirin does[4][5][6][7][11]
Kirin runs on the endpoint inside supported agents and sees the tools, extensions, servers, and skills actually installed and used. Kirin denies a destructive command before it executes, tells the developer why, and logs a Prevented alert for the SOC. Kirin blocks the connection to an MCP server before it is established, after AgentMesh scans and rates the server. Kirin deploys as an extension for Cursor and VS Code.
What AgentMesh does[4][5][6][7][11]
AgentMesh rates every skill, server, and extension. AgentMesh scans MCP servers for prompt injection, malicious behaviour, and supply-chain risk. AgentMesh detects prompt injection in skills, MCP servers, and extensions before install. Every paid AgentMesh plan includes Kirin IDE security.

What it sells: Zenity

What AI Observability does[5]
AI Observability is Zenity's discovery and visibility layer for AI agents. Data Lens surfaces sensitive files and pages that are both frequently accessed and broadly exposed across agents.
What AI Security Posture Management (AISPM) does[7]
AISPM evaluates configuration and permissions for agents embedded in platforms like Microsoft Copilot Studio, ChatGPT Enterprise, and Salesforce Agentforce. AISPM applies stricter enforcement in production and more flexible policy in development or sandbox environments.
What Boundaries does[4][6][8]
Boundaries is Zenity's runtime enforcement engine. A rule written once in Boundaries is enforced on Copilot, ChatGPT Enterprise, Agentforce, Bedrock, coding agents, and homegrown builds. Boundaries includes a built-in AI assistant that turns a plain-language request into a working rule.
What AI Detection and Response (AIDR) does[9]
AI Detection and Response (AIDR) is Zenity's runtime security layer for AI agents. AIDR detects direct and indirect prompt injection and blocks execution before the agent acts on them. AIDR breaks every agent interaction into individual steps and groups them by thread in a single activity table.
What Zenity Security Assessment Hub does[13]
The Zenity Security Assessment Hub is built by Zenity Labs. The tools take a Red-Team approach to visualize threats across Microsoft 365, with a focus on 365 Copilot, Copilot Studio, and Power Platform.

Questions about Knostic and Zenity

What do Knostic and Zenity sell?
Knostic sells Kirin and AgentMesh. Zenity sells AI Observability, AI Security Posture Management (AISPM), Boundaries, AI Detection and Response (AIDR) and Zenity Security Assessment Hub.
Are Knostic and Zenity in the same category?
Yes. AI model and agent security is the primary category of both on CISO Tribune.
Where are Knostic and Zenity headquartered?
Knostic is headquartered in Reston, United States.
When were Knostic and Zenity founded?
Knostic was founded in 2023. Zenity was founded in 2021.
Who owns Knostic and Zenity?
Knostic is privately held. Zenity is privately held.
Who are Knostic and Zenity sold to?
From its own pages, the company sells mainly to developers and teams that use AI coding agents and IDEs, with plans written for individual developers, growing teams, and engineering managers. Zenity describes a global financial services firm and a global asset manager as organizations that write policy rules for agents.
What have Knostic and Zenity announced recently?
June 12, 2026: Knostic was recognized in the Cloud Security Alliance's first Agentic AI Security Innovator Market Map. September 23, 2026: Zenity was named a Market Shaper in Gartner's inaugural Emerging Market Quadrant for AI Application Security.

About Knostic

Knostic discovers and secures agents, coding assistants, and their supply chain, from MCP to skills and Code to Cowork. Knostic enforces rules by checking every action against policy before it runs, so allowed actions proceed and risky ones are blocked or sent to a human. Knostic applies least privilege to what agents do, watches every action as it happens, and blocks the unsafe ones before they execute.[1][6]

Kirin is the Knostic product that runs on the endpoint inside supported agents. Kirin sees the tools, extensions, servers, and skills actually installed and used. In one example, Kirin denies a destructive command before it executes, tells the developer why, and logs a Prevented alert for the SOC. AgentMesh rates every skill, server, and extension. Every paid AgentMesh plan includes Kirin IDE security.[4][6][11]

Knostic discovers every agent, model, and AI tool running across endpoints, attributes each to people and teams, and brings them under one policy. Knostic finds agents, extensions, MCP servers, and skills where they run, on the endpoint, rather than inferring from network logs. Discovery is passive, and policy can run in Monitor mode before anything is enforced. Discovered components are rated using AgentMesh verdicts and policy posture. Knostic maps which teams and individuals use which tools and what they can reach.[4][6]

Knostic describes one control plane for all agents, models, and AI tools. Knostic unifies and centrally governs agentic security policies and configurations. Teams can scope what agents may read, write, run, connect to, and install, per team. Knostic describes its guardrails for SaaS, in-house, coding, and Cowork agents.[1][6]

For prompt injection, Kirin catches the injection and blocks the action it would have caused. Kirin inspects what an agent is about to do, not just what it was told. Knostic scans prompts, retrieved context, and tool responses for injection and malicious instructions. Knostic catches credentials in prompts and outputs and blocks or redacts them, in Monitor or Enforce. Teams choose block, downgrade, route to a human, or log per rule and per team. For code, Knostic states that agents model threats before they code, follow secure coding rules, and have every package checked.[1][11]

Knostic keeps an up-to-date list of allowed MCP servers, with every connection validated in real time. Knostic flags deviations from policy or misconfigurations as they occur. AgentMesh continuously rescans the ecosystem, and Knostic research feeds new detections. Decision logs and runtime monitoring provide evidence for audits, incident response, and policy enforcement.[6]

Kirin supports Claude Code CLI, Claude Desktop and Cowork, Cursor, Windsurf, and VS Code + GitHub Copilot, on macOS and Windows, and Linux is in beta. Managers provision the console, push the endpoint client to the endpoints, directly or via an existing MDM, and start in Monitor mode. For Cursor and VS Code, Kirin deploys as an extension and requires the client for shadow AI visibility.

Kirin has three tiers, from individual developers to enterprise-wide rollouts. Knostic provides a package with SOC 2, pen test reports, and a data flow diagram in its trust center. Knostic Inc. is a company incorporated under the laws of the State of Delaware.[4][8][9]

Knostic on the record

Sources

Knostic full record

  1. [1]Knostic - The control plane for agentic AI on the endpointKnostic · undated page, accessed September 27, 2026 · Tier A
  2. [2]Ending llm oversharing we raised 11 million to secure enterprise aiKnostic · knostic.ai · undated page, accessed September 27, 2026 · Tier A
  3. [3]Rsac 2025 innovation sandbox knostic reshaping the access control paradigm for enterprise ai securitySecurity Boulevard · securityboulevard.com · published April 25, 2025 · Tier B
  4. [4]Shadow AI Discovery & Governance - KnosticKnostic · undated page, accessed October 26, 2026 · Tier A
  5. [5]Pricing - KnosticKnostic · undated page, accessed October 26, 2026 · Tier A
  6. [6]AI Agent Security - KnosticKnostic · undated page, accessed October 26, 2026 · Tier A
  7. [7]MCP Security Posture Management - KnosticKnostic · undated page, accessed October 26, 2026 · Tier A
  8. [8]Terms of Service - KnosticKnostic · undated page, accessed October 26, 2026 · Tier A
  9. [9]Knostic Knostic Trust Center | Powered by SafeBaseKnostic · undated page, accessed October 26, 2026 · Tier A
  10. [10]Knostic Featured Across Three Categories in CSA's Agentic AI Security Innovator Market MapKnostic · published June 12, 2026 · Tier A
  11. [11]Prompt Injection Defense - KnosticKnostic · undated page, accessed November 10, 2026 · Tier A

Zenity full record

  1. [1]AI Agent Security and Governance | Zenity AI Security PlatformZenity · undated page, accessed September 27, 2026 · Tier A
  2. [2]Zenity announces strategic investment led by m12Zenity · zenity.io · undated page, accessed September 27, 2026 · Tier A
  3. [3]Zenity raises 38m series b funding round to secure agentic aiZenity · zenity.io · published October 29, 2024 · Tier A
  4. [4]AI Agent Security & Governance Platform for the Enterprise | ZenityZenity · undated page, accessed October 30, 2026 · Tier A
  5. [5]AI Observability | Zenity AI Security PlatformZenity · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI Agent Security | Model Context Protocol (MCP) | ZenityZenity · undated page, accessed November 10, 2026 · Tier A
  7. [7]AI Security Posture Management | Zenity AI Security PlatformZenity · undated page, accessed November 10, 2026 · Tier A
  8. [8]Runtime Boundaries | Zenity AI Security PlatformZenity · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI Detection and Response (AIDRZenity · undated page, accessed November 10, 2026 · Tier A
  10. [10]Agentic Identity & Access Management: Zenity AI Security PlatformZenity · undated page, accessed November 10, 2026 · Tier A
  11. [11]Securing Financial Services AI | Zenity, Microsoft & SlalomZenity · undated page, accessed November 10, 2026 · Tier A
  12. [12]Company | Zenity | Secure AI Agents EverywhereZenity · undated page, accessed November 10, 2026 · Tier A
  13. [13]Zenity Security Assessment Hub | Zenity | Secure AI Agents EverywhereZenity · undated page, accessed November 10, 2026 · Tier A
  14. [14]Zenity Raises $125 Million to Secure the Era of 1 Billion AI AgentsZenity · published August 3, 2026 · Tier A
  15. [15]Zenity Named a Market Shaper in Gartner’s Inaugural Emerging Market Quadrant for AI Application SecurityZenity · published September 23, 2026 · Tier A
  16. [16]Zenity Announces Availability of Inline Agent Runtime Security for Agents Built on Microsoft FoundryZenity · published March 17, 2026 · Tier A
  17. [17]Zenity and Carahsoft Bring AI Agent Security and Governance to Federal, State and Local AgenciesZenity · published June 17, 2026 · Tier A

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