CISO Tribune

Vendor comparison · 2 companies

BigID vs Island

BigID sells one platform for security controls, compliance and privacy automation, and AI governance. Island sells an enterprise browser that provides a managed environment for secure application access. CISO Tribune files both under Data loss prevention. 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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  • BigID
  • Island
BigID vs Island: Products, Customers and Funding Compared
BigIDBigID sells one platform for security controls, compliance and privacy automation, and AI governance.bigid.comIslandIsland sells an enterprise browser that provides a managed environment for secure application access.island.io
What it sells
  • Discovery & ClassificationFinds and classifies sensitive data across data center, cloud, SaaS and code. It also inventories the AI models and agents that reach that data.
  • DSPM, AI SPM, Agentic SPMPosture management across data, AI and the agents acting on both. It surfaces exposures and guides the fix.
  • Unstructured Data MinimizationClassifies and minimizes files, email and chat. Flagged content moves through review to archive or purge.
  • Context engineering for AI Agents[6]Catalogs data and metadata and controls what each AI agent can see.
  • AgentIQ[6][9]Runs a data and AI security program from a prompt or an agent.
  • Data & AI sovereignty[6]Maps data residency and cross-border flows and applies localization policy. The platform can run in-country or air-gapped.
  • Enterprise Browser[2][4][5][6]A browser that provides a managed environment for secure application access.
  • Island Private Access[5]A ZTNA solution for web and desktop apps.
  • Island DEX[6]Collects analytics on application usage, performance, network and device health.
Categories
Headquarters
New York, United StatesNot stated on its pages
Founded
2016[4]Not stated on its pages
Ownership and funding
Privately held[4][14][15]Privately held[5][6][16]
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • September 24, 2026Island announced a $400 million Series F round led by Evolution Equity Partners, bringing its valuation to $6.4 billion.[14]
  • June 8, 2026Island and Pax8 introduced Island for SMBs on the Pax8 Marketplace, making it available to managed service provider partners and their SMB customers.[15]
G2 and Gartner Peer Insights
  • G2: listed, seen November 10, 2026[16]
  • Gartner Peer Insights: Not stated on its pages
Who it fits
From its own pages, BigID sells mainly to security, privacy and AI teams that want one set of findings rather than separate tools. BigID describes privacy and compliance teams as answering to national privacy laws, industry controls and AI obligations. BigID offers self-managed VPC and fully air-gapped on-premises deployments that run the same software as its SaaS. BigID for Federal is aimed at federal programs, on a FedRAMP High authorized platform.Island addresses users who need to securely access their data and applications on any device, anywhere. Island is sold to organizations whose contractors need access to apps and resources from any device. Island is used by M&A teams for onboarding. Island sells to organizations that want employees to use approved AI tools while keeping PII, IP and financial records out of prompts and outputs.
Last verified
September 27, 2026November 4, 2026

Where they overlap

  • BigID and Island are both filed under Data loss prevention.
  • Both are privately held.

Where they differ, field by field

  • BigID's primary category is Data security posture management; Island's is Enterprise browsers.
  • BigID is also filed under Privacy management. Island is also filed under SASE and SSE and Zero trust network access.
  • BigID lists Discovery & Classification, DSPM, AI SPM, Agentic SPM, Unstructured Data Minimization, Context engineering for AI Agents, AgentIQ and 1 more. Island lists Enterprise Browser, Island Private Access and Island DEX.
  • BigID is headquartered in New York, United States.
  • BigID was founded in 2016.

What it sells: BigID

What Discovery & Classification does
The page describes agentless discovery with hundreds of connectors across the data center, cloud, SaaS and code, with scan depth set per source. Data is read and classified into 2,000+ categories. Models and agents that reach the data, sanctioned or not, are inventoried as assets in their own right.
What DSPM, AI SPM, Agentic SPM does
The page says DSPM began as data risk discovery: find the sensitive data, assess the risk around it. BigID then guides the fix with access governance, activity monitoring, DLP and disposition. It extends all of this to the AI models and agents now reaching the same data.
What Unstructured Data Minimization does
The page says BigID classifies unstructured data at scale and finds duplicates, stale files and out-of-compliance data. Flagged content moves through review to archive or purge, with legal hold checked first.
What Context engineering for AI Agents does[6]
The page says BigID indexes structured and unstructured data and catalogs that metadata behind APIs and MCP. It discovers each agent and what it is approved to do. It also controls which data and metadata every agent can see.
What AgentIQ does[6][9]
The page lets users run a data and AI program from a prompt or an agent. It works inside BigID or from third-party assistants and enterprise agents. Agents that a buyer buys, builds or brings ask the questions, investigate the risk, take the action and keep the work running.
What Data & AI sovereignty does[6]
The page says BigID maps residency, cross-border flows and third-party access from discovery. It applies localization policy and keeps the evidence regulators ask for. The platform can run in-country or fully air-gapped, with zero outbound connectivity.

What it sells: Island

What Enterprise Browser does[2][4][5][6]
The Enterprise Browser installs locally on any device and is managed centrally through the cloud-based Island Management Console. Island automatically assesses device posture to ensure devices meet policy requirements. The Enterprise Browser defends against web-based threats, including malware, phishing attacks and session hijacking.
What Island Private Access does[5]
Island Private Access is a ZTNA solution for both web and desktop apps. Island Private Access offers a second deployment option for the Island Enterprise Browser to support access to private web applications and semi-private SaaS applications.

Questions about BigID and Island

What do BigID and Island sell?
BigID sells Discovery & Classification, DSPM, AI SPM, Agentic SPM, Unstructured Data Minimization, Context engineering for AI Agents, AgentIQ and 1 more. Island sells Enterprise Browser, Island Private Access and Island DEX.
Are BigID and Island in the same category?
They share Data loss prevention. BigID's primary category is Data security posture management and Island's is Enterprise browsers.
Where are BigID and Island headquartered?
BigID is headquartered in New York, United States.
When were BigID and Island founded?
BigID was founded in 2016.
Who owns BigID and Island?
BigID is privately held. Island is privately held.
Who are BigID and Island sold to?
From its own pages, BigID sells mainly to security, privacy and AI teams that want one set of findings rather than separate tools. Island addresses users who need to securely access their data and applications on any device, anywhere.
What have BigID and Island announced recently?
September 24, 2026: Island announced a $400 million Series F round led by Evolution Equity Partners, bringing its valuation to $6.4 billion.

About BigID

BigID sells one platform for security controls, compliance and privacy automation, and AI governance. BigID says it detects sensitive data, AI and identities across an organization's estate, protects them, and governs who and what can reach them.[1][5]

BigID says security, privacy and AI teams usually work from separate tools and separate answers. BigID gives those teams one catalog and one graph. BigID builds one catalog across cloud, SaaS, on-prem and mainframe, and classifies it automatically. BigID governs AI models and the data they run on together, so policy becomes a control and every control leaves evidence behind.[5][16]

On the data security side, BigID includes access governance, activity monitoring, loss prevention, lifecycle and privacy management natively within its DSPM offering. BigID discovers sensitive data in every store, classifies it, and flags overshared files, stale access, and unmanaged models and agents. BigID classification uses 2,000+ pretrained classifiers and prompt based LLM classification for structured and unstructured data. BigID reads permissions metadata at the source and reviews it against policy, surfacing the conflicts for attestation. BigID discovers agents, sanctioned and unsanctioned, and shows the data each one reaches through the identity it runs under.[3][6][8][13][17]

Agents reach BigID through an RBAC-controlled MCP, approved agents are recognized by identity, and each one is limited to the context data its role and stated intent call for.[6][18]

On deployment, BigID offers multi-tenant SaaS with full data segregation options, data ringfenced inside any of 30+ countries, and single tenant full isolation set as a deployment flag on the same product. BigID says an air-gapped deployment delivers the same discovery, classification, remediation, and AI governance as BigID SaaS. In a sealed, air-gapped environment, BigID runs with zero outbound connectivity and no phone-home telemetry. BigID for Federal is described as secure data for federal programs, on a platform that is FedRAMP High authorized.[6][8][10][16][19]

On privacy, BigID privacy requests arrive through a branded portal, forms, APIs or internal teams, identities are verified, and each request is routed by type, jurisdiction and brand. BigID lifecycle management covers ROT detection, sandboxed review before anything moves, and soft and hard delete, with legal hold and downstream impact checked first.[8][13][20]

BigID pushes classification and labeling into Microsoft Purview.[2][5][6][7][8][9][10][11][12][13][19][20][21][22]

BigID on the record

Sources

BigID full record

  1. [1]Data security platformBigID · bigid.com · published August 5, 2026 · Tier A
  2. [2]Bigid recognized as a leader in independent evaluation of sensitive data discovery and classification solutions as company expands ai security and governance platform 302739331BigID via PR Newswire · prnewswire.com · published April 10, 2026 · Tier A
  3. [3]Fortune venture dealsBigID (republishing Fortune) · bigid.com · undated page, accessed September 27, 2026 · Tier A
  4. [4]Rk42qzuraCTech (Calcalist) · calcalistech.com · published March 20, 2024 · Tier B
  5. [5]BigID: Enterprise Data Security Platform for DSPM & AIBigID · undated page, accessed October 23, 2026 · Tier A
  6. [6]Data Security, Privacy, and AI Governance Solutions | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  7. [7]Data Discovery and Classification for Data and AI | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  8. [8]DSPM, AI SPM, and Agentic SPM Platform | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  9. [9]AgentIQ: Agentic Automation for Data and AI Security | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  10. [10]Data and AI Sovereignty Solutions | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  11. [11]Databricks | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  12. [12]Context Engineering for AI Agents | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  13. [13]Unstructured Data Minimization and Retention | BigIDBigID · undated page, accessed October 23, 2026 · Tier A
  14. [14]BigID Reviews 2026: Details, Pricing, & Features - G2G2 · undated page, accessed October 23, 2026 · Tier C
  15. [15]BigID Reviews, Ratings & Features 2026 | Gartner Peer InsightsGartner Peer Insights · undated page, accessed October 23, 2026 · Tier C
  16. [16]AI Governance for Models, Agents, and Their Data | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  17. [17]Data Access Governance for Employees and AI Agents | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  18. [18]Data Governance Automation Software | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  19. [19]Secure AI-First Architecture: SaaS to Air-Gapped | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  20. [20]Privacy and Compliance Automation for the AI Era | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  21. [21]Purview | BigIDBigID · undated page, accessed November 4, 2026 · Tier A
  22. [22]Collibra | BigIDBigID · undated page, accessed November 4, 2026 · Tier A

Island full record

  1. [1]island.ioIsland · island.io · undated page, accessed November 4, 2026 · Tier A
  2. [2]island.ioIsland · island.io · undated page, accessed November 4, 2026 · Tier A
  3. [3]PressIsland · island.io · undated page, accessed November 4, 2026 · Tier A
  4. [4]VDI Alternative | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  5. [5]Zero Trust | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  6. [6]Enterprise Browser | Data Protection and DLP | IslandIsland · undated page, accessed November 10, 2026 · Tier A
  7. [7]M&A Onboarding | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  8. [8]Island Platform | The Frontier Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  9. [9]BYOD Workforce | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  10. [10]Third-Party Contractors | Island - The Enterprise BrowserIsland · undated page, accessed November 10, 2026 · Tier A
  11. [11]Privileged Access Management | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  12. [12]AI Agent Governance, AI Protection, and AI Browser | IslandIsland · undated page, accessed November 10, 2026 · Tier A
  13. [13]SaaS and Web Apps | Island Control PlaneIsland · undated page, accessed November 10, 2026 · Tier A
  14. [14]Island Announces $400 Million Series F, Bringing Valuation to $6.4 BillionIsland · published September 24, 2026 · Tier A
  15. [15]Island Brings the First Purpose-Built Workspace for SMBs to the Pax8 MarketplaceIsland · published June 8, 2026 · Tier A
  16. [16]Island Reviews 2026: Details, Pricing, & FeaturesG2 · undated page, accessed November 10, 2026 · Tier C

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