CISO Tribune

Vendor comparison · 2 companies

Plerion vs Zenity

Plerion calls Pleri its primary AI security agent. 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. 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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  • Plerion
  • Zenity
Plerion vs Zenity: Products, Customers and Funding Compared
PlerionPlerion calls Pleri its primary AI security agent.plerion.comZenityZenity sells an AI agent security platform built to govern how agents behave, not just what they say or generate.zenity.io
What it sells
  • 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
Not stated on its pagesNot stated on its pages
Founded
Not stated on its pages2021[2]
Ownership and funding
Not stated on its pagesPrivately held[3][6][17]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • 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 organisations with cloud environments, saying its autonomous agents investigate your cloud and map what actually needs fixing. It also lists delivery partnerships for MSPs, MSSPs, and consultancies, so service providers are a stated audience. It publishes cloud security reference articles on controls and frameworks as well.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

  • Plerion and Zenity are both filed under AI model and agent security.

Where they differ, field by field

  • Plerion's primary category is Cloud-native application protection (CNAPP); Zenity's is AI model and agent security.
  • Plerion is also filed under Cloud workload protection. Zenity is also filed under AI governance.
  • Plerion lists Pleri and Plerion Platform. Zenity lists AI Observability, AI Security Posture Management (AISPM), Boundaries, AI Detection and Response (AIDR) and Zenity Security Assessment Hub.
  • Zenity was founded in 2021.
  • Zenity is privately held.

What it sells: Plerion

What Plerion Platform does[2]
The Plerion Platform maps every cloud asset, identity, permission, and workload into a single graph. The Plerion Platform reads that graph the way an attacker would.

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 Plerion and Zenity

What do Plerion and Zenity sell?
Plerion sells Pleri and Plerion Platform. Zenity sells AI Observability, AI Security Posture Management (AISPM), Boundaries, AI Detection and Response (AIDR) and Zenity Security Assessment Hub.
Are Plerion and Zenity in the same category?
They share AI model and agent security. Plerion's primary category is Cloud-native application protection (CNAPP) and Zenity's is AI model and agent security.
When were Plerion and Zenity founded?
Zenity was founded in 2021.
Who owns Plerion and Zenity?
Zenity is privately held.
Who are Plerion and Zenity sold to?
From its own pages, the company sells mainly to organisations with cloud environments, saying its autonomous agents investigate your cloud and map what actually needs fixing. Zenity describes a global financial services firm and a global asset manager as organizations that write policy rules for agents.
What have Plerion and Zenity announced recently?
September 23, 2026: Zenity was named a Market Shaper in Gartner's inaugural Emerging Market Quadrant for AI Application Security.

About Plerion

Plerion calls Pleri its primary AI security agent.[2]

Plerion addresses a backlog that no security team works through manually once ten developers use AI coding assistants. Plerion describes a finding that spans a service, a team, and a vendor, and that nobody picks up because nobody is sure whose job it is. Plerion states that 46% of code shipped today is AI-generated, while the list of issues that took a week to triage is still taking a week.[2]

Plerion shows what agents can access and what they can do. Plerion traces each agent to the code, identities, infrastructure, and data it touches, so that teams can fix the risks that matter.[2]

Plerion's agent investigates findings, decides whether they need dealing with, and submits a fix. The engineer who owns the resource reviews and approves the change.[2][3]

Pleri orchestrates a set of specialist skills, each covering a different part of the cloud estate.[2]

Plerion publishes an article based on the AIS-05 control from the CSA Cloud Controls Matrix v4.0.10, dated 2023-09-26. Plerion's article on automated application security testing covers considerations, strategies, and practices for implementing that testing based on guidance in the Cloud Controls Matrix of the Cloud Security Alliance.[2][4][6]

Plerion's data security guidance notes that the DSP-01 control maps to several other industry standards and regulations related to data privacy and security.[1][2][3][4][5][7][8][9][10][11][12][13][14]

Plerion on the record

Sources

Plerion full record

  1. [1]plerion.comPlerion · plerion.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]PlerionPlerion · undated page, accessed October 27, 2026 · Tier A
  3. [3]Privacy Policy | PlerionPlerion · published June 12, 2026 · Tier A
  4. [4]Application and Interface Security Policy and Procedures | PlerionPlerion · published July 15, 2025 · Tier A
  5. [5]Application Security Baseline Requirements | PlerionPlerion · published July 15, 2025 · Tier A
  6. [6]Automated Application Security Testing | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  7. [7]Application Security Metrics | Plerion | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  8. [8]Application and Service Approval | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  9. [9]Data Security and Privacy Policy and Procedures | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  10. [10]Compliance User Responsibility | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  11. [11]Business Continuity Planning | Plerion | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  12. [12]Disaster Response Plan | Plerion | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  13. [13]Cabling Security | Plerion | PlerionPlerion · undated page, accessed November 10, 2026 · Tier A
  14. [14]Capacity and Resource Planning | PlerionPlerion · 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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