CISO Tribune

Vendor comparison · 2 companies

AppOmni vs Onyx Security

AppOmni is a SaaS Security Posture Management (SSPM) and AI SaaS Security Posture Management (AISPM) platform that gives enterprise companies and their security teams continuous visibility into their SaaS applications, AI-enabled environments, and AI agents. Onyx Security sells a secure control plane for AI agents and models. 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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Up to four companies side by side.

  • AppOmni
  • Onyx Security
AppOmni vs Onyx Security: Products, Customers and Funding Compared
AppOmniAppOmni is a SaaS Security Posture Management (SSPM) and AI SaaS Security Posture Management (AISPM) platform that gives enterprise companies and their security teams continuous visibility into their SaaS applications, AI-enabled environments, and AI agents.appomni.comOnyx SecurityOnyx Security sells a secure control plane for AI agents and models.onyx.security
What it sells
  • Marlin AI[6]Autonomously correlates security indicators, investigates risks, and delivers guided remediation.
  • AskOmni[7]An AI security assistant built into the AppOmni platform.
  • AI Security[1][7]Onyx provides the runtime and posture layer of the Onyx Secure AI Control Plane.
  • MCP Gateway[8]The MCP Gateway governs the agent-to-tool surface.
Categories
Headquarters
San Mateo, United States[2][8]Not stated on its pages
Founded
2018[3][8]Not 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 pages
  • July 29, 2026Onyx Security announced a $113 million Series B funding round led by Bessemer Venture Partners.[15]
  • March 12, 2026Onyx Security officially launched operations after securing $40 million in initial funding.[14]
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, AppOmni sells mainly to enterprise security and IT teams at global organizations. It names buyer roles including cloud security architects, vulnerability management, SecOps, IAM, and GRC. Its customers span financial services, healthcare and life sciences, legal services, technology, and the public sector. AppOmni says the platform is designed for companies that rely heavily on SaaS applications and are subject to compliance requirements such as SOC 2, HIPAA, FedRAMP, or ISO 27001.From its own pages, Onyx Security sells mainly to security, governance, and AI teams that need control over AI agent adoption across the enterprise. Onyx Security describes a single platform for security, governance, and infrastructure teams. Onyx Security offers cloud, hybrid, or self-hosted options for organisations with sensitive data residency requirements. Onyx Security presents one console for AI agents and models across SaaS, cloud, endpoint, and code environments. Onyx Security names security, finance, and platform teams as the teams that share its usage, cost, and policy ledger.
Last verified
November 2, 2026October 19, 2026

Where they overlap

  • AppOmni and Onyx Security are both filed under AI model and agent security.

Where they differ, field by field

  • AppOmni's primary category is SaaS security posture; Onyx Security's is AI model and agent security.
  • Onyx Security is also filed under AI governance, Workforce AI usage security and Non-human identity security.
  • AppOmni lists Marlin AI and AskOmni. Onyx Security lists AI Security and MCP Gateway.
  • AppOmni is headquartered in San Mateo, United States.
  • AppOmni was founded in 2018.

What it sells: AppOmni

What Marlin AI does[6]
Marlin AI autonomously correlates security indicators, investigates risks, surfaces incidents, and delivers expert-guided remediation. It is built on AppOmni's SaaS and AI observability platform.
What AskOmni does[7]
AskOmni is an AI security assistant integrated into the AppOmni platform. Users can ask questions in plain language and receive contextual answers based on their SaaS data.

What it sells: Onyx Security

What AI Security does[1][7]
Onyx provides the runtime and posture layer of the Onyx Secure AI Control Plane. Onyx inspects every prompt, tool call, and model response inline across browser AI, coding assistants, desktop AI agents, cloud workloads, and MCP servers. Onyx offers five enforcement actions: alert, block, mask, steer, or ask.
What MCP Gateway does[8]
The MCP Gateway governs the agent-to-tool surface. Every tool call an agent makes to an MCP server gets inspected and policy-enforced. MCP Gateway coverage spans the MCP ecosystem, including servers using dynamic client registration and popular servers like GitHub.

Questions about AppOmni and Onyx Security

What do AppOmni and Onyx Security sell?
AppOmni sells Marlin AI and AskOmni. Onyx Security sells AI Security and MCP Gateway.
Are AppOmni and Onyx Security in the same category?
They share AI model and agent security. AppOmni's primary category is SaaS security posture and Onyx Security's is AI model and agent security.
Where are AppOmni and Onyx Security headquartered?
AppOmni is headquartered in San Mateo, United States.
When were AppOmni and Onyx Security founded?
AppOmni was founded in 2018.
Who are AppOmni and Onyx Security sold to?
From its own pages, AppOmni sells mainly to enterprise security and IT teams at global organizations. From its own pages, Onyx Security sells mainly to security, governance, and AI teams that need control over AI agent adoption across the enterprise.
What have AppOmni and Onyx Security announced recently?
July 29, 2026: Onyx Security announced a $113 million Series B funding round led by Bessemer Venture Partners.

About AppOmni

AppOmni is a SaaS Security Posture Management (SSPM) and AI SaaS Security Posture Management (AISPM) platform that gives enterprise companies and their security teams continuous visibility into their SaaS applications, AI-enabled environments, and AI agents.[4]

AppOmni says the platform monitors configurations settings and user permissions, detects threats, simplifies compliance, and surfaces data exposures across applications like Salesforce, Microsoft 365, ServiceNow, Google Workspace, and Workday. AppOmni integrates with over 100 SaaS applications, and the app coverage spans productivity, CRM, ITSM, identity, ERP, collaboration, legal, healthcare, and developer tools.[1][4]

The problem AppOmni says it addresses is that misconfigured apps, shadow access, and unsafe AI actions often go undetected. AppOmni describes a lifecycle approach with four stages: Identify, Protect, Detect, and Respond. In the Identify stage, AppOmni discovers SaaS and AI in use and who has access, including unsanctioned apps and shadow agents. In the Respond stage, AppOmni integrates with SOC tools so teams can block AI prompts, revoke access, disable a risky integration, or trigger incident response steps.[4]

The platform has several components.

AppOmni also offers Marlin AI, which autonomously correlates security indicators, investigates risks, surfaces incidents, and delivers expert-guided remediation. AskOmni is an AI security assistant integrated into the AppOmni platform, where users can ask questions in plain language and receive contextual answers based on their SaaS data.[5][6][7]

On deployment, AppOmni connects to SaaS applications via native APIs, so there is no hardware to install, no network changes required, and no agents to deploy. AppOmni says most organizations achieve full connectivity and their first security findings within hours of starting onboarding. Unlike Cloud Access Security Brokers, which sit inline to monitor traffic, AppOmni connects directly to SaaS application APIs to inspect configurations, permission structures, and data access.[4]

AppOmni says it is used by enterprise security and IT teams, including cloud security architects, vulnerability management, SecOps, IAM, and GRC, at global organizations. Current customers span financial services, healthcare and life sciences, legal services, technology, and the public sector. AppOmni says it is designed for companies subject to compliance requirements such as SOC 2, HIPAA, FedRAMP, NIST CSF, SSCF, GDPR, or ISO 27001.[4]

AppOmni was founded in 2018 by CEO Brendan O’Connor and CTO Brian Soby, and it is headquartered in San Mateo, California. AppOmni lists Cisco Investments, Salesforce Ventures, ServiceNow, Thoma Bravo, and Scale Venture Partners among its investors.[4][5]

AppOmni on the record

Sources

AppOmni full record

  1. [1]appomni.comAppOmni · appomni.com · undated page, accessed September 27, 2026 · Tier A
  2. [2]About usAppOmni · appomni.com · undated page, accessed September 27, 2026 · Tier A
  3. [3]Appomni raises 70 million in a series c funding round led by thoma bravo to scale market leading saas security solutionThoma Bravo · thomabravo.com · published June 6, 2022 · Tier B
  4. [4]SaaS and AI Security for Enterprises | AppOmniAppOmni · undated page, accessed October 23, 2026 · Tier A
  5. [5]The SaaS Security & AI Platform | AppOmniAppOmni · undated page, accessed November 5, 2026 · Tier A
  6. [6]Marlin AI: Autonomous AI-Powered SaaS Security - AppOmniAppOmni · undated page, accessed November 5, 2026 · Tier A
  7. [7]AskOmni: AI-Powered SaaS Security Assistant | AppOmniAppOmni · undated page, accessed November 5, 2026 · Tier A
  8. [8]About AppOmni - SaaS Security CompanyAppOmni · undated page, accessed November 5, 2026 · Tier A

Onyx Security full record

  1. [1]onyx.securityOnyx Security · onyx.security · undated page, accessed October 19, 2026 · Tier A
  2. [2]The Secure AI Control Plane for the Agentic Era | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  3. [3]About Onyx | The Team Behind the AI Control PlaneOnyx Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]One Platform to Discover and Control Every AI Agent | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  5. [5]AI Observability – Discover Every Agent & Session | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI Agent Security | Block Prompt Injection in Real TimeOnyx Security · undated page, accessed November 10, 2026 · Tier A
  7. [7]AI Governance Platform Built for the EU AI Act | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  8. [8]AI Orchestration – Governed Routing & Control | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]AI ROI Platform – Prove Value & Control Costs | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Secure Claude Enterprise with Onyx | Anthropic IntegrationOnyx Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Secure ChatGPT Enterprise with Onyx | OpenAI IntegrationOnyx Security · undated page, accessed November 10, 2026 · Tier A
  12. [12]Secure Amazon Bedrock Agents | Onyx IntegrationOnyx Security · undated page, accessed November 10, 2026 · Tier A
  13. [13]Copilot Studio Security – Discover, Govern & Control | OnyxOnyx Security · undated page, accessed November 10, 2026 · Tier A
  14. [14]Israeli cyber firm Onyx Security launches operations with $40 million funding round | ReutersReuters · published March 12, 2026 · Tier B
  15. [15]Onyx Security Raises $113M Series B to Control Advanced AI, Quadrupling Revenue since Stealth Launch Four Months AgoBusiness Wire · published July 29, 2026 · Tier A

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