CISO Tribune

Vendor comparison · 2 companies

Arexdata vs WitnessAI

Arexdata sells Arexdata DSPM, a data security posture management platform that helps identify sensitive data, who can access it, how it is used, and where the risks lie, including those associated with the use of AI. WitnessAI sells an AI security and governance platform that brings humans and agents under one platform. CISO Tribune files both under Workforce AI usage 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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  • Arexdata
  • WitnessAI
Arexdata vs WitnessAI: Products, Customers and Funding Compared
ArexdataArexdata sells Arexdata DSPM, a data security posture management platform that helps identify sensitive data, who can access it, how it is used, and where the risks lie, including those associated with the use of AI.arexdata.comWitnessAIWitnessAI sells an AI security and governance platform that brings humans and agents under one platform.witness.ai
What it sells
  • Arexdata DSPM[2][3]A platform for identifying sensitive data, who can access it, how it is used and where the risks lie, including those tied to AI use.
  • 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
Not stated on its pagesMountain View, United States[4]
Founded
Not stated on its pages2023[3]
Ownership and funding
Not stated on its pagesPrivately 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
Not written yetFrom 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
October 23, 2026November 2, 2026

Where they overlap

  • Arexdata and WitnessAI are both filed under Workforce AI usage security.

Where they differ, field by field

  • Arexdata's primary category is Data security posture management; WitnessAI's is Workforce AI usage security.
  • WitnessAI is also filed under AI firewalls and guardrails and AI governance.
  • Arexdata lists Arexdata DSPM. WitnessAI lists Observe, Control and Protect.
  • WitnessAI is headquartered in Mountain View, United States.
  • WitnessAI was founded in 2023.
  • WitnessAI is privately held.

What it sells: Arexdata

What Arexdata DSPM does[2][3]
Arexdata DSPM is one platform built for end-to-end visibility across data, users, permissions, activity, and AI. Arexdata DSPM protects information in the cloud, SaaS, on-premises, and on endpoints.

Questions about Arexdata and WitnessAI

What do Arexdata and WitnessAI sell?
Arexdata sells Arexdata DSPM. WitnessAI sells Observe, Control and Protect.
Are Arexdata and WitnessAI in the same category?
They share Workforce AI usage security. Arexdata's primary category is Data security posture management and WitnessAI's is Workforce AI usage security.
Where are Arexdata and WitnessAI headquartered?
WitnessAI is headquartered in Mountain View, United States.
When were Arexdata and WitnessAI founded?
WitnessAI was founded in 2023.
Who owns Arexdata and WitnessAI?
WitnessAI is privately held.
Who are Arexdata and WitnessAI sold to?
From its own pages, the company sells mainly to enterprises, saying they need security and governance that extends from humans to agents.

About Arexdata

Arexdata sells Arexdata DSPM, a data security posture management platform that helps identify sensitive data, who can access it, how it is used, and where the risks lie, including those associated with the use of AI. Arexdata DSPM is one platform built for end-to-end visibility across data, users, permissions, activity, and AI. Arexdata DSPM brings data, users, permissions, activity, AI and endpoints together in a single platform.[2][3]

Arexdata DSPM identifies and classifies sensitive information so that customers know what they have, where it is, and what level of protection it requires. Arexdata DSPM locates PII, PCI, PHI, intellectual property and other regulated data, and classifies it automatically using rules and tagging. Arexdata DSPM identifies sensitive data, access points, and risks across an entire infrastructure.[2][3]

Arexdata DSPM shows who can access each piece of data and helps identify excessive, inherited, or redundant permissions. Arexdata DSPM allows customers to apply the principle of least privilege. Arexdata DSPM applies Zero-Trust and least-privilege principles with traceability.[1][2][3]

Arexdata DSPM monitors accesses, changes, and actions so customers can track who did what, when, and to which data, without relying on ad hoc audits. Arexdata DSPM monitors accesses, changes, movements and data use to investigate incidents, detect risky behavior and generate evidence.[2][3]

Arexdata DSPM can revoke permissions, launch workflows, generate alerts or run actions through a customer's SIEM, SOAR and DLP tools. Arexdata DSPM allows customers to alert, escalate, or resolve each situation, either immediately or on a set schedule. Arexdata DSPM selectively mitigates exposures, automates where appropriate, and maintains oversight of critical actions.[2][3]

Arexdata DSPM detects Shadow AI, sensitive information exposed in prompts, anomalous behavior, and activity from users, agents, and non-human entities. Arexdata DSPM monitors which AI tools are used, what data they consume, and how users and agents interact with sensitive information. Arexdata detects the presence of sensitive data in chats and alerts administrators and users to prevent data exfiltration. Arexdata DSPM runs its AI risk analytics locally, and no data leaves the customer's infrastructure.[1][2][3]

Arexdata DSPM protects information in the cloud, SaaS, on-premises, and on endpoints. Arexdata DSPM analyzes information locally so that data does not have to leave a customer's infrastructure. Arexdata DSPM adds context to each exposure according to sensitivity, access and impact.[1][2][3]

Arexdata on the record

Sources

Arexdata full record

  1. [1]arexdata.comArexdata · arexdata.com · undated page, accessed October 23, 2026 · Tier A
  2. [2]The DSPM Platform \ Data & AI Security \ ArexdataArexdata · undated page, accessed November 10, 2026 · Tier A
  3. [3]Plataforma de Seguridad del Dato y la IA \ Arexdata DSPMArexdata · 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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