CISO Tribune

Vendor comparison · 2 companies

Impart Security vs WitnessAI

Impart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs. WitnessAI sells an AI security and governance platform that brings humans and agents under one platform. CISO Tribune files both under AI firewalls and guardrails. 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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  • Impart Security
  • WitnessAI
Impart Security vs WitnessAI: Products, Customers and Funding Compared
Impart SecurityImpart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs.impart.aiWitnessAIWitnessAI sells an AI security and governance platform that brings humans and agents under one platform.witness.ai
What it sells
  • Agent Protection[3][10]Enforces application-specific policies on agent traffic and tool interactions.
  • API Security[5][8][10]Enforces controls based on how APIs behave across requests and sessions.
  • Runtime Defense Harness[10]Uses AI-assisted investigation to develop targeted virtual patches.
  • Observe[6][11]Finds and catalogs AI applications, agents and MCP servers, and visualizes AI conversations and agentic activity.
  • Control[1][5][6][7][10][11]Governs what AI agents and employees can do, routes prompts to models based on risk or purpose, and generates audit trails.
  • Protect[1][5][6][8][11]Applies runtime security controls and content guardrails intended to block prompt injection and jailbreak attempts and filter harmful responses.
Categories
Headquarters
San Francisco, United StatesMountain View, United States[4]
Founded
Not stated on its pages2023[3]
Ownership and funding
Privately heldPrivately held[2][13]
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: listed, seen November 10, 2026[13]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Impart describes protection that runs inside an organisation's existing ingress. The stated coverage spans AI, applications and APIs. Impart also describes integrating its protection into existing ingress and egress infrastructure, with policies and runtime state synchronized across distributed environments.From its own pages, the company sells mainly to enterprises, saying they need security and governance that extends from humans to agents. It addresses employee use of AI, citing risks around sensitive data, compliance, and shadow AI. It also addresses AI agents, which it describes as connecting to tools, accessing data, and taking actions on behalf of employees.
Last verified
September 27, 2026November 2, 2026

Where they overlap

  • Impart Security and WitnessAI are both filed under AI firewalls and guardrails.
  • Both are headquartered in the United States.
  • Both are privately held.

Where they differ, field by field

  • Impart Security's primary category is AI firewalls and guardrails; WitnessAI's is Workforce AI usage security.
  • Impart Security is also filed under AI model and agent security and Bot and abuse management. WitnessAI is also filed under AI governance.
  • Impart Security lists Agent Protection, API Security and Runtime Defense Harness. WitnessAI lists Observe, Control and Protect.
  • Impart Security is headquartered in San Francisco, United States. WitnessAI is headquartered in Mountain View, United States.
  • WitnessAI was founded in 2023.

What it sells: Impart Security

What Agent Protection does[3][10]
Agent Protection enforces application-specific policies on agent traffic and tool interactions, using runtime context to restrict unauthorized actions and access. Agent Protection runs on the same ingress-layer enforcement engine that inspects the full attack surface.
What API Security does[5][8][10]
API Security enforces controls based on how APIs behave across requests and sessions, not just individual request signatures. Impart applies inline, sequence-aware enforcement to every API call. API Security detects and blocks shadow APIs as they are accessed. API Security prevents sensitive data (PII) from leaving the system.
What Runtime Defense Harness does[10]
Runtime Defense Harness uses AI-assisted investigation to develop targeted virtual patches and deploy protection through the same engine already protecting the applications. Targeted virtual patches are generated and tested against runtime traffic, with Policy as Code validated before deployment. AI-generated virtual patches are informed by runtime behavior, tested against live traffic and enforced through programmable Layer 7 controls.

Questions about Impart Security and WitnessAI

What do Impart Security and WitnessAI sell?
Impart Security sells Agent Protection, API Security and Runtime Defense Harness. WitnessAI sells Observe, Control and Protect.
Are Impart Security and WitnessAI in the same category?
They share AI firewalls and guardrails. Impart Security's primary category is AI firewalls and guardrails and WitnessAI's is Workforce AI usage security.
Where are Impart Security and WitnessAI headquartered?
Impart Security is headquartered in San Francisco, United States. WitnessAI is headquartered in Mountain View, United States.
When were Impart Security and WitnessAI founded?
WitnessAI was founded in 2023.
Who owns Impart Security and WitnessAI?
Impart Security is privately held. WitnessAI is privately held.
Who are Impart Security and WitnessAI sold to?
Impart describes protection that runs inside an organisation's existing ingress. From its own pages, the company sells mainly to enterprises, saying they need security and governance that extends from humans to agents.

About Impart Security

Impart Security sells programmable, deterministic Layer 7 protection across AI, applications and APIs. Impart enforces security policies directly in the application traffic path. Impart describes one programmable engine that unifies OWASP coverage, stateful behavioral analysis and custom security logic to block threats inline. Impart defines runtime enforcement as the ability to detect and block a threat at the moment the request is made, inline in the path of live traffic. Impart integrates programmable Layer 7 protection into existing ingress and egress infrastructure, enforces deterministic controls locally, and synchronizes policies and runtime state across distributed environments.[4][6][9][10]

For bots, Impart blocks credential stuffing, scraping and AI-driven automation with stateful controls that evaluate request patterns and session behavior. For agents, Impart enforces application-specific policies on agent traffic and tool interactions, using runtime context to restrict unauthorized actions and access. Impart detects and blocks shadow APIs as they are accessed. Impart's API enforcement prevents sensitive data (PII) from leaving the system.[8][10]

Impart sits between the agent and the customer's systems, enforcing security before any action executes. Agent protection runs on the same ingress-layer enforcement engine that inspects the full attack surface. Impart evaluates each prompt using session history, identity, prior model interactions and the chain of tool calls behind it. Impart's LLM enforcement sits inline between the caller and the model and runs before the prompt reaches inference. Impart builds a live catalog of every MCP server reaching the environment, sanctioned or not, and every tool exposed by each one. Policy-as-code in Impart applies the same way to AI clients, CLI users, web apps and direct API callers.[3][5][6][8]

Runtime Defense Harness uses AI-assisted investigation to develop targeted virtual patches and deploy protection through the same engine already protecting the applications. Impart generates and tests targeted virtual patches against runtime traffic, validating Policy as Code before deployment. Impart deploys custom virtual patches in under 60 minutes. Impart executes custom security logic inline using request context and shared session state, and blocks attacks without model inference in the traffic path.[4][10]

Impart runs inside the existing ingress, without adding an extra traffic hop or single point of failure. A lightweight module runs inside the existing ingress controller, capturing HTTP requests after TLS termination and passing them to a local inspector. If the inspector fails or times out, the module fails open. The Impart inspector runs locally alongside the ingress to evaluate request context, runtime state and custom security logic. Enforcement decisions in Impart are deterministic, and no AI inference or cloud round trip is required. Impart Cloud keeps policies and shared state in sync. Impart extends programmable Layer 7 protection to outbound AI requests and agent interactions through supported AI gateway infrastructure. Impart inspects traffic, applies custom security logic and protects sensitive data without replacing the existing gateway, routing or cost controls. The Impart Security plugin runs natively inside Kong Gateway, paired with an Impart Inspector running in the customer's own environment.[5][9][10]

Impart inspects every request to AI applications, web applications and APIs in the traffic path where it sits. The Impart integration with Wiz sends hosts to a Wiz tenant as Imported Assets, next to the cloud resources. Impart sends hostnames to Wiz and does not read Wiz issues, findings or resources. FanDuel replaced black-box security with Impart. Impart offered Crossbeam a single solution for web application, API security and LLM protection.[1][2][3][4][5][6][7][8][9][10]

Impart Security on the record

Sources

Impart Security full record

  1. [1]impart.aiImpart Security · impart.ai · undated page, accessed September 27, 2026 · Tier A
  2. [2]impart.aiImpart Security · impart.ai · undated page, accessed September 27, 2026 · Tier A
  3. [3]Agent Protection - Control AI Agent Behavior | ImpartImpart Security · undated page, accessed September 27, 2026 · Tier A
  4. [4]AI Runtime Defense | Impart Security PlatformImpart Security · undated page, accessed October 25, 2026 · Tier A
  5. [5]LLM Protection | Deterministic Agent Controls | ImpartImpart Security · undated page, accessed October 25, 2026 · Tier A
  6. [6]MCP Protection | Runtime Control for MCP Layer | ImpartImpart Security · undated page, accessed October 25, 2026 · Tier A
  7. [7]WAF for the Agentic Era | Impart SecurityImpart Security · undated page, accessed October 25, 2026 · Tier A
  8. [8]API Security for the Agentic Era | Impart SecurityImpart Security · undated page, accessed October 25, 2026 · Tier A
  9. [9]Integrations with Impart Security | Impart Security Runtime ProtectionImpart Security · undated page, accessed November 10, 2026 · Tier A
  10. [10]Programmable Layer 7 Firewall | Impart SecurityImpart Security · undated page, accessed November 10, 2026 · Tier A

WitnessAI full record

  1. [1]Unified AI Security and Governance Platform | WitnessAIWitnessAI · undated page, accessed September 27, 2026 · Tier A
  2. [2]Witnessai raises 58 million for global expansion and announces new ways to secure ai agents 302659319WitnessAI via PR Newswire · prnewswire.com · published January 13, 2026 · Tier A
  3. [3]Witnessai launches with guardrails for aiDark Reading · darkreading.com · published May 21, 2024 · Tier B
  4. [4]WitnessaiAppSec Santa · appsecsanta.com · published April 3, 2026 · Tier C
  5. [5]Scaling AI Security with WitnessAI - WitnessAIWitnessAI · undated page, accessed November 10, 2026 · Tier A
  6. [6]AI Security Platform | Enterprise AI Governance | WitnessAIWitnessAI · undated page, accessed November 10, 2026 · Tier A
  7. [7]WitnessAI 2.0 Delivers New Regulatory Compliance Capabilities to Support Safe AI Adoption - WitnessAIWitnessAI · published April 30, 2025 · Tier A
  8. [8]Ensuring Compliance with the EU AI Act - WitnessAIWitnessAI · undated page, accessed November 10, 2026 · Tier A
  9. [9]WitnessAI Achieves SOC 2 Type II Compliance - WitnessAIWitnessAI · published October 21, 2025 · Tier A
  10. [10]WitnessAI Joins ServiceNow Control Tower Alliance - WitnessAIWitnessAI · undated page, accessed November 10, 2026 · Tier A
  11. [11]TENEX.AI and WitnessAI Partner to Deliver Managed Security and Compliance Services for Enterprise AI - WitnessAIWitnessAI · published June 17, 2025 · Tier A
  12. [12]How Security Leaders Prove ROI and Reduce Risk - WitnessAIWitnessAI · undated page, accessed November 10, 2026 · Tier A
  13. [13]WitnessAI Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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