CISO Tribune

Vendor comparison · 2 companies

BigID vs Realm Security

BigID sells one platform for security controls, compliance and privacy automation, and AI governance. Realm Security sells a SOC-aware Security Data Pipeline Platform, abbreviated SDPP. 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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  • BigID
  • Realm Security
BigID vs Realm Security: Products, Customers and Funding Compared
BigIDBigID sells one platform for security controls, compliance and privacy automation, and AI governance.bigid.comRealm SecurityRealm Security sells a SOC-aware Security Data Pipeline Platform, abbreviated SDPP.realm.security
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.
  • Realm Platform[1][2][3]A SOC-aware security data pipeline that connects any source and sends data to any destination.
  • Realm Clarity AI[1][5]Understands what each source produces and what each destination needs, then shapes the flow between them.
  • Detection Integrity[1][8]Proves that a data cut did not cost a detection.
  • Privacy Guard[1][8]Discovers and masks PII, PHI and PCI in transit.
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]Not stated on its pages
Named customers
Not stated on its pagesNot stated on its pages
Recent news
Not stated on its pages
  • October 29, 2026Realm Security expanded its Realm Partner Program by adding Crush Security and ProCern Technology Solutions in North America.[11]
G2 and Gartner Peer Insights
  • G2: Not stated on its pages
  • 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.Realm Security reports enterprise demand for vendor-neutral control over the telemetry feeding SIEMs, data lakes and AI agents in the security operations center. The company states that delivering value quickly for resource-constrained security defenders is at the core of its mission. Realm Security's partner program is aimed at resellers, MSSPs, technology advisors and cybersecurity consultancies. One partner type it names is an MSSP that integrates the Realm Platform into a fully managed data pipeline service.
Last verified
September 27, 2026November 5, 2026

Where they overlap

  • BigID and Realm Security are both filed under Data security posture management.

Where they differ, field by field

  • BigID's primary category is Data security posture management; Realm Security's is Security data lakes and pipelines.
  • BigID is also filed under Data loss prevention and Privacy management. Realm Security is also filed under SIEM.
  • BigID lists Discovery & Classification, DSPM, AI SPM, Agentic SPM, Unstructured Data Minimization, Context engineering for AI Agents, AgentIQ and 1 more. Realm Security lists Realm Platform, Realm Clarity AI, Detection Integrity and Privacy Guard.
  • BigID is headquartered in New York, United States.
  • BigID was founded in 2016.
  • BigID is privately held.

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: Realm Security

What Realm Platform does[1][2][3]
The Realm Platform is the SOC-aware security data pipeline. The Realm Platform connects any source and sends data to any destination. Realm manages the infrastructure while the customer's SOC owns the decisions.
What Realm Clarity AI does[1][5]
Clarity AI profiles every source at the field level and models what each destination can consume. Recommendations are shown with a match rate and run in a pending state against live data before they go active. Clarity AI does the analysis and the customer's team approves the changes.
What Detection Integrity does[1][8]
Detection Integrity proves that a data cut did not cost a detection. Realm checks every reduction against the customer's live detections.
What Privacy Guard does[1][8]
Privacy Guard masks sensitive data in transit without altering structure, so parsers and detection logic keep working. Authorized investigators can retrieve unredacted values from Data Haven.

Questions about BigID and Realm Security

What do BigID and Realm Security sell?
BigID sells Discovery & Classification, DSPM, AI SPM, Agentic SPM, Unstructured Data Minimization, Context engineering for AI Agents, AgentIQ and 1 more. Realm Security sells Realm Platform, Realm Clarity AI, Detection Integrity and Privacy Guard.
Are BigID and Realm Security in the same category?
They share Data security posture management. BigID's primary category is Data security posture management and Realm Security's is Security data lakes and pipelines.
Where are BigID and Realm Security headquartered?
BigID is headquartered in New York, United States.
When were BigID and Realm Security founded?
BigID was founded in 2016.
Who owns BigID and Realm Security?
BigID is privately held.
Who are BigID and Realm Security 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. Realm Security reports enterprise demand for vendor-neutral control over the telemetry feeding SIEMs, data lakes and AI agents in the security operations center.
What have BigID and Realm Security announced recently?
October 29, 2026: Realm Security expanded its Realm Partner Program by adding Crush Security and ProCern Technology Solutions in North America.

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

Realm Security full record

  1. [1]realm.securityRealm Security · realm.security · undated page, accessed November 5, 2026 · Tier A
  2. [2]Realm Expands Channel Program with Crush Security and ProCernRealm Security · published October 29, 2026 · Tier A
  3. [3]Realm Security | The SOC-Aware Security Data PipelineRealm Security · undated page, accessed November 10, 2026 · Tier A
  4. [4]Realm.Security Doubles Customers in Q1 2026 | Realm.SecurityRealm Security · published June 3, 2026 · Tier A
  5. [5]Integrations: Any Source to Any SIEM or Lake | RealmRealm Security · undated page, accessed November 10, 2026 · Tier A
  6. [6]Realm.Security Raises $15 Million in Series A Funding - Realm.SecurityRealm Security · published October 8, 2025 · Tier A
  7. [7]Realm.Security Emerges from Stealth, Raises $5M to Manage Explosion of Cyber Security DataRealm Security · published September 12, 2024 · Tier A
  8. [8]Realm Platform: The SOC-Aware Security Data PipelineRealm Security · undated page, accessed November 10, 2026 · Tier A
  9. [9]Realm.Security Caps 2025 with $2M Strategic Investment from Presidio Ventures - Realm.SecurityRealm Security · published December 11, 2025 · Tier A
  10. [10]About Realm Security | Built by Security Data ExpertsRealm Security · undated page, accessed November 10, 2026 · Tier A
  11. [11]Realm Security Expands Channel Program with Crush Security and ProCern as Demand for Independent Data Pipelines Accelerates in AI EraPRNewswire · published October 29, 2026 · Tier A

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