CISO Tribune

Vendor comparison · 2 companies

Immuta vs Onyx Security

Immuta sells software that connects to data platforms so customers can register their data and manage access controls on that data. Onyx Security sells a secure control plane for AI agents and models. CISO Tribune files both under Non-human identity 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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  • Immuta
  • Onyx Security
Immuta vs Onyx Security: Products, Customers and Funding Compared
ImmutaImmuta sells software that connects to data platforms so customers can register their data and manage access controls on that data.immuta.comOnyx SecurityOnyx Security sells a secure control plane for AI agents and models.onyx.security
What it sells
  • Govern[1][4]Writes data access policies in plain language and enforces them across connected data systems.
  • Provision[1]Manages access requests and masking exceptions, routing routine access automatically and sending genuine exceptions for a decision.
  • Comply[1]Records every access decision as it happens so compliance and audit questions can be answered quickly.
  • Agentic Data Access[1]Issues AI agents scoped, temporary credentials tied to the human they act on behalf of.
  • Immuta Detect[2]Provides continuous user and data activity monitoring across cloud data platforms for risk remediation and posture management.
  • 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
Boston, United States[2]Not stated on its pages
Founded
2015[2]Not stated on its pages
Ownership and funding
Privately held[5]Not 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: listed, seen November 10, 2026[5]
  • 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
Immuta addresses organisations where AI agents request data on behalf of named people. Immuta also speaks to teams that connect data platforms and want access controls managed on the data held in them. Immuta describes a division of work in which policy answers routine requests and people own the exceptions.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 8, 2026October 19, 2026

Where they overlap

  • Immuta and Onyx Security are both filed under Non-human identity security.

Where they differ, field by field

  • Immuta's primary category is Data security posture management; Onyx Security's is AI model and agent security.
  • Immuta is also filed under Identity governance and administration and Privacy management. Onyx Security is also filed under AI governance and Workforce AI usage security.
  • Immuta lists Govern, Provision, Comply, Agentic Data Access and Immuta Detect. Onyx Security lists AI Security and MCP Gateway.
  • Immuta is headquartered in Boston, United States.
  • Immuta was founded in 2015.
  • Immuta is privately held.

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 Immuta and Onyx Security

What do Immuta and Onyx Security sell?
Immuta sells Govern, Provision, Comply, Agentic Data Access and Immuta Detect. Onyx Security sells AI Security and MCP Gateway.
Are Immuta and Onyx Security in the same category?
They share Non-human identity security. Immuta's primary category is Data security posture management and Onyx Security's is AI model and agent security.
Where are Immuta and Onyx Security headquartered?
Immuta is headquartered in Boston, United States.
When were Immuta and Onyx Security founded?
Immuta was founded in 2015.
Who owns Immuta and Onyx Security?
Immuta is privately held.
Who are Immuta and Onyx Security sold to?
Immuta addresses organisations where AI agents request data on behalf of named people. 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 Immuta and Onyx Security announced recently?
July 29, 2026: Onyx Security announced a $113 million Series B funding round led by Bessemer Venture Partners.

About Immuta

Immuta sells software that connects to data platforms so customers can register their data and manage access controls on that data. Immuta applies one set of rules to every request, from every human and every agent. Immuta describes a policy engine that governs every human, every agent and every data system on every request they make. Banks, pharmaceutical companies, insurers and government agencies run their data access on Immuta.[1][3][4]

Immuta states that the right answer to a data request depends on who is asking, what they want and why. Immuta states that an agent cannot sit in a review queue for a week. Immuta states that people should still write the rules and own the exceptions.[4]

Immuta offers four modules on one policy engine, and a customer can adopt one and add the rest. Immuta lets a rule be written once in plain language, and Immuta compiles the rule into the real controls inside the customer's data infrastructure. Immuta policy answers routine access requests on its own, and people decide the genuine exceptions with the reason attached.[1][4]

Immuta delegation from a human to an agent can only narrow access, never widen it. Immuta records every access decision as it happens.[4]

Immuta provides guidance for connecting a data platform and keeping it synced with Immuta. Immuta identification support varies by data source technology and identifier type.[1][3][4]

Immuta on the record

Sources

Immuta full record

  1. [1]immuta.comImmuta · immuta.com · undated page, accessed November 8, 2026 · Tier A
  2. [2]Immuta recognized as a top company on forbes annual list of americas best startup employers 2Immuta · immuta.com · published March 22, 2023 · Tier A
  3. [3]Integrations | Documentation - SaaSImmuta · undated page, accessed November 10, 2026 · Tier A
  4. [4]The Authorization Layer for Data Access | ImmutaImmuta · undated page, accessed November 10, 2026 · Tier A
  5. [5]Immuta Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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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