Top 10 Best Pii Data Discovery Software of 2026

BigID is a premier PII data discovery platform that automates the scanning, identification, and classification of sensitive personal data across structured, unstructured, and semi-structured sources in on-premises, cloud, and hybrid environments. Leveraging advanced AI and machine learning, it provides high-accuracy detection of over 1,000 data types, including PII, PHI, and financial data, while offering contextual insights and remediation recommendations. The solution integrates seamlessly with data governance, security, and compliance tools to help organizations manage privacy risks and achieve regulatory adherence like GDPR, CCPA, and HIPAA.

Microsoft Purview is a unified data governance solution that enables organizations to discover, classify, and govern sensitive data, including PII, across Microsoft 365, Azure, Power Platform, SaaS applications, and on-premises sources. It leverages AI-powered scanning and over 250 built-in classifiers to automatically identify PII entities like credit card numbers, SSNs, and health data in structured and unstructured formats. Purview provides a centralized data map for lineage, cataloging, and compliance insights, helping enterprises manage data privacy and regulatory requirements effectively.

AWS Macie is a fully managed data security and privacy service that uses machine learning and pattern matching to discover, classify, and protect sensitive data like PII in Amazon S3 buckets. It scans data at scale, assigns sensitivity scores, and generates findings with risk prioritization for quick remediation. Macie integrates with AWS services for automated alerts and supports custom data identifiers for tailored PII detection.

Google Cloud DLP is a robust data loss prevention service designed to discover, classify, and protect sensitive data, including PII, across Google Cloud Storage, BigQuery, Datastore, and other GCP services. It employs advanced machine learning models to detect over 100 predefined infoTypes like emails, phone numbers, credit cards, and health data, while supporting custom classifiers for organization-specific PII. The tool enables automated scanning of structured and unstructured data at rest and in transit, with de-identification, risk scoring, and templated jobs for scalable discovery.

Securiti.ai is a unified Data Command Center platform specializing in automated discovery, classification, and governance of sensitive data, including PII, across multi-cloud, SaaS, and on-premises environments. It employs AI and machine learning for precise PII detection in structured and unstructured data, while providing data lineage, flow mapping, and contextual risk analysis. The solution integrates privacy, security, and compliance workflows to support regulations like GDPR, CCPA, and HIPAA, enabling proactive data protection at scale.

OneTrust is a leading privacy management platform with robust PII data discovery capabilities, scanning structured and unstructured data across cloud, on-premises, and SaaS environments to identify, classify, and map personal information. It leverages AI and machine learning for accurate detection of over 1,000 data types, including sensitive PII, and integrates discovery results into broader data mapping and governance workflows. This helps organizations achieve compliance with regulations like GDPR, CCPA, and HIPAA through automated scanning and continuous monitoring.

Varonis DatAdvantage is a leading data security platform specializing in the discovery, classification, and protection of sensitive data, including PII, across file shares, Active Directory, Exchange, and cloud environments. It uses advanced analytics to map data access patterns, identify over-permissions, and detect anomalous behavior, enabling organizations to enforce least privilege and automate remediation. The solution provides granular visibility into unstructured data risks, supporting compliance with GDPR, HIPAA, and other regulations through accurate PII detection and classification.

Collibra is an enterprise-grade data intelligence platform focused on governance, cataloging, and quality, with robust capabilities for discovering and classifying PII across structured and unstructured data sources using automated scanning, machine learning, and rule-based detection. It centralizes data assets in a collaborative catalog, enabling lineage tracking, policy enforcement, and compliance with regulations like GDPR and CCPA. While powerful for holistic data management, its PII discovery is embedded within a broader governance framework rather than being a standalone tool.

Immuta is an automated data governance platform specializing in PII discovery, classification, and protection across multi-cloud, on-premises, and hybrid environments. It uses machine learning and rule-based scanning to identify sensitive data like PII in structured, semi-structured, and unstructured sources, tagging assets for compliance. Beyond discovery, it provides dynamic policy enforcement, data lineage, and universal access controls to streamline governance at scale.

Alation is a leading data catalog and governance platform that facilitates PII data discovery by automatically harvesting metadata, classifying sensitive data, and enabling tagging across diverse data sources like databases, cloud storage, and BI tools. It supports compliance through custom classifiers for PII patterns such as emails, SSNs, and credit card numbers, integrated with data lineage to track sensitive data flows. While not a standalone PII scanner, its metadata-driven approach provides robust discovery within broader data intelligence workflows.