CISO Tribune

Vendor comparison · 2 companies

Arexdata vs Sentra

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. Sentra sells a platform that finds sensitive datasets across cloud, SaaS, on-prem and AI services and shows which people and AI agents can reach them. CISO Tribune files both under Data security posture management. 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
  • Sentra
Arexdata vs Sentra: 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.comSentraSentra sells a platform that finds sensitive datasets across cloud, SaaS, on-prem and AI services and shows which people and AI agents can reach them.sentra.io
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.
  • Shadow AI DLP[3]A module of the platform aimed at sensitive data being shared with AI applications.
Categories
Headquarters
Not stated on its pagesNew York, United States[1]
Founded
Not stated on its pages2021[1]
Ownership and funding
Not stated on its pagesPrivately held[13][15][19]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • November 4, 2026Sentra announced a $150 million strategic investment led by Capital One Ventures, with a Capital One representative joining its board of directors.[18]
  • June 2, 2026Sentra announced the launch of its Platform for Continuous AI Data Readiness and Governance.[12]
  • March 25, 2026Sentra launched a solution for securely adopting Google Workspace with Gemini.[17]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • Gartner Peer Insights: Not stated on its pages
Who it fits
Not written yetFrom its own pages, Sentra sells mainly to organizations that hold sensitive data across cloud, SaaS, on-prem and AI services. Sentra addresses organizations that want a safer rollout of copilots and agents. Sentra publishes offerings for financial organizations that need to limit access to financial data with least-privilege policies, for healthcare organizations that hold PHI in cloud environments, and for retailers with e-commerce systems. Sentra says scanning occurs in the customer's environment and data never leaves it, which speaks to buyers who want data to stay in their own environment.
Last verified
October 23, 2026September 27, 2026

Where they overlap

  • Data security posture management is the primary category of both Arexdata and Sentra.

Where they differ, field by field

  • Arexdata is also filed under Workforce AI usage security.
  • Arexdata lists Arexdata DSPM. Sentra lists Shadow AI DLP.
  • Sentra is headquartered in New York, United States.
  • Sentra was founded in 2021.
  • Sentra is privately held.

How they differ

CISO Tribune files Arexdata under Data security posture management and Workforce AI usage security, with Data security posture management as its primary category. CISO Tribune files Sentra under Data security posture management, which is also its primary category. Arexdata sells Arexdata DSPM, a single platform covering data, users, permissions, activity and AI, which protects information in the cloud, SaaS, on-premises, and on endpoints. Sentra sells a platform that finds sensitive datasets across cloud, SaaS, on-prem and AI services and shows which people and AI agents can reach them.

Both companies address AI-related data risk. Arexdata DSPM detects Shadow AI and sensitive information exposed in prompts, and it runs its AI risk analytics locally. Sentra sells Shadow AI DLP, a module that pairs Shadow AI Discovery with browser-based data protection, and it can block, warn, or require user justification before sensitive data is shared with AI. Sentra also says it can classify the knowledge bases and data stores behind Microsoft 365 Copilot and Gemini for Workspace. On remediation, Arexdata DSPM can revoke permissions or run actions through a customer's SIEM, SOAR and DLP tools. Sentra says a policy can disable public links, remove external users or quarantine files, and it routes judgment calls to the data owner in Slack, Teams, Jira or ServiceNow.

Sentra is headquartered in New York, United States, was founded in 2021, and is privately held. On November 4, 2026, Sentra announced a $150 million strategic investment led by Capital One Ventures. Sentra also announced the launch of its Platform for Continuous AI Data Readiness and Governance on June 2, 2026. Sentra publishes offerings for financial organizations, healthcare organizations that hold PHI, and retailers.

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 Sentra

What do Arexdata and Sentra sell?
Arexdata sells Arexdata DSPM. Sentra sells Shadow AI DLP.
Are Arexdata and Sentra in the same category?
Yes. Data security posture management is the primary category of both on CISO Tribune.
Where are Arexdata and Sentra headquartered?
Sentra is headquartered in New York, United States.
When were Arexdata and Sentra founded?
Sentra was founded in 2021.
Who owns Arexdata and Sentra?
Sentra is privately held.
Who are Arexdata and Sentra sold to?
From its own pages, Sentra sells mainly to organizations that hold sensitive data across cloud, SaaS, on-prem and AI services.
What have Arexdata and Sentra announced recently?
November 4, 2026: Sentra announced a $150 million strategic investment led by Capital One Ventures, with a Capital One representative joining its board of directors.

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

Sentra full record

  1. [1]Sentra adds advanced data detection and response solutionSentra · sentra.io · undated page, accessed September 27, 2026 · Tier A
  2. [2]Sentra closes 50 million series b amid surging demand for securing data for ai adoptionSentra via PR Newswire · sentra.io · published April 22, 2025 · Tier A
  3. [3]Data Security Platform | Cloud Security | SentraSentra · undated page, accessed October 23, 2026 · Tier A
  4. [4]Sentra | AI Data Security & AI Data Governance PlatformSentra · undated page, accessed October 23, 2026 · Tier A
  5. [5]Solution: Financial ServicesSentra · undated page, accessed October 23, 2026 · Tier A
  6. [6]Solution HealthcareSentra · undated page, accessed October 23, 2026 · Tier A
  7. [7]Solution: RetailSentra · undated page, accessed October 23, 2026 · Tier A
  8. [8]Trust Center | SentraSentra · undated page, accessed October 23, 2026 · Tier A
  9. [9]Sentra PricingSentra · undated page, accessed October 23, 2026 · Tier A
  10. [10]About Sentra: Get to Know the Leadership TeamSentra · undated page, accessed October 23, 2026 · Tier A
  11. [11]Integrations | SentraSentra · undated page, accessed October 23, 2026 · Tier A
  12. [12]Sentra Launches Platform to Deliver the Missing Data Readiness Layer for Enterprise AISentra · published June 2, 2026 · Tier A
  13. [13]Sentra Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 23, 2026 · Tier C
  14. [14]Data Discovery and Classification | SentraSentra · undated page, accessed November 5, 2026 · Tier A
  15. [15]Automated Remediation | SentraSentra · undated page, accessed November 5, 2026 · Tier A
  16. [16]Continuous AI Compliance | SentraSentra · undated page, accessed November 5, 2026 · Tier A
  17. [17]Sentra Launches the Only Scalable Google Workspace Gemini Security to Protect Sensitive Data from AI RiskPR Newswire · published March 25, 2026 · Tier A
  18. [18]Sentra Raises $150M to Secure Data for the Agentic AI EraPR Newswire · published November 4, 2026 · Tier A
  19. [19]Sentra Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed November 5, 2026 · Tier C

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