DLP vendors
We list 44 companies active in data loss prevention, and 10 of them have it as their main focus. 6 are public, 7 are owned by another company and 31 are private. Most are based in the United States (29). The oldest, Microsoft, was founded in 1975. By revenue from annual reports, the largest company here is Microsoft ($331.8bn in FY2026).
By countryUnited States 29
Companies focused on data loss prevention
10 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Kiteworks Kiteworks provides a platform for secure data exchange and governance across email, file sharing, and APIs. | San Mateo, United States | 1999 | 530 staff | Private | |
Cyberhaven Cyberhaven provides a data security platform that traces data lineage to protect information across human and AI workflows. | Austin, United States | Private | |||
D Data & More Data & More is a Danish software company founded in 2016. | Copenhagen, Denmark | 2016 | Private | ||
Forcepoint Forcepoint provides data security software that controls how AI applications and agents access sensitive information. | Austin, United States | 1994 | Owned by Francisco Partners | ||
PII Crawler PII Crawler scans files, network shares and email for personal data on your own hardware. | Vancouver, Washington, United States | 2023 | Private | ||
Siberson Siberson provides data security software for discovering, classifying, preventing loss of and monitoring sensitive data. | Amsterdam, Netherlands | Private | |||
S SmartKeeper SmartKeeper is a security company that sells endpoint protection and control products. | Seoul, South Korea | 2001 | Private | ||
MarkAny MarkAny develops document security, forgery prevention, content protection, and AI video surveillance software. | Seoul, South Korea | 1999 | Private | ||
Netwrix Netwrix provides software to protect data and secure identities across IT environments. | Frisco, United States | 2006 | Owned by TA Associates | ||
Safetica Technologies Safetica provides AI-powered data protection, insider risk, cloud security, and compliance software. | San Jose, United States | 2007 | Private |
Also active in data loss prevention
34 companies| Company | Based in | Founded | Size | Ownership | Revenue |
|---|---|---|---|---|---|
Microsoft Microsoft sells software, cloud services, hardware, and gaming products. | Redmond, United States | 1975 | 228,000 staff | Public, MSFT | $331.8bn (FY2026) |
Palo Alto Networks Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats. | Santa Clara, United States | 2005 | 13,900 staff | Public, PANW | $11.5bn (FY2026) |
Open Text Corporation OpenText provides software and services for managing information across an organisation. | Waterloo, Canada | 1991 | Public, OTEX | $5.2bn (FY2026) | |
Zscaler Zscaler provides a cloud-native zero trust cybersecurity platform that securely connects users, devices, and applications. | San Jose, United States | 2007 | Public, ZS | $3.4bn (FY2026) | |
Netskope, Inc Netskope provides cloud security and networking services for organisations. | Santa Clara, United States | 2012 | Public, NTSK | $709.0m (FY2026) | |
Varonis Varonis provides data security software that protects data across cloud, SaaS and on-premises environments. | Miami, United States | 2005 | Public, VRNS | $623.5m (FY2025) | |
Abnormal AI Abnormal AI uses behavioural analysis to detect and stop email, identity, and AI-driven cyber attacks. | San Francisco, United States | 2018 | Private | ||
Acium Acium provides an AI security and governance platform that makes AI usage visible, secure, and governed across users, browsers, agents, and devices. | Miami, United States | 2024 | Private | ||
BigID BigID provides a data intelligence platform for discovering, classifying, and governing enterprise data and AI. | New York City, Israel | 2016 | Private | ||
Cyera Cyera provides a data security platform that discovers and protects sensitive data across cloud environments. | New York, United States | 2021 | Private | ||
Cymphony Cymphony provides an AI-native workforce security platform that maps identities, data, and permissions to reduce risk. | Tel Aviv, Israel | Private | |||
dope.security dope.security sells a secure web gateway called dope.swg. | Mountain View, United States | 2021 | Private | ||
Egress Software Technologies Ltd Egress provides cloud email security that uses adaptive controls to stop phishing and data loss. | London, United Kingdom | 2007 | Part of KnowBe4 | ||
E Everfox Everfox provides cybersecurity solutions for cross domain, threat protection, and insider risk management. | Herndon, United States | Private | |||
Fendr Fendr provides AI usage controls for businesses. | London, United Kingdom | 2025 | Private | ||
Harmonic Security Harmonic Security provides software that discovers, classifies and controls how employees use AI tools at work. | San Francisco, United States | 2023 | Private | ||
Island Island provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations. | Dallas, United States | Private | |||
Jscrambler Jscrambler provides client-side security software that protects code and data in web browsers. | Porto, Portugal | 2010 | Private | ||
Lakera Lakera provides security software that protects enterprise AI applications from prompt attacks and data leakage. | Zurich, Switzerland | 2021 | Part of Check Point | ||
Lasso Security Lasso Security provides a platform to secure AI agents and applications at enterprise scale. | Tel Aviv, Israel | 2023 | Private | ||
L Lepide Lepide provides software to audit and secure Active Directory, files, and Microsoft 365. | Austin, United States | 2005 | Private | ||
Mimecast Mimecast provides email security and human risk management services for organisations. | London, United Kingdom | 2003 | Owned by Permira | ||
Paubox Paubox provides HIPAA compliant email and security services for healthcare organisations. | San Francisco, United States | 2014 | Private | ||
Sealgate SealGate provides a security gateway that governs how AI agents access company data. | London, United Kingdom | 2025 | Private | ||
Securiti Securiti provides a platform for data security, privacy, governance and compliance across hybrid multicloud environments. | San Jose, United States | 2018 | Part of Veeam | ||
Sentra Sentra provides data security solutions to discover and protect sensitive data from AI applications. | New York, United States | Private | |||
Skyhigh Security Skyhigh Security provides data-first security service edge for cloud and hybrid environments. | San Jose, United States | 2011 | Private | ||
Versa Networks Versa Networks provides secure access service edge (SASE) solutions that combine networking and security. | Santa Clara, United States | 2012 | Private | ||
Virtru Virtru provides encryption and access control for email, files, and SaaS applications. | Washington, United States | 2012 | Private | ||
Deep Instinct Deep Instinct provides deep learning-based data security that prevents malware and ransomware across cloud, NAS, applications, and endpoints. | New York, United States | 2014 | Private | ||
Lattix Technologies Corp Lattix Technologies Corp provides data security with encryption, policy, and audit trails. | Culpeper, United States | 2024 | Private | ||
OPSWAT OPSWAT provides cybersecurity solutions to protect critical infrastructure from file-borne and device-borne threats. | Tampa, United States | Private | |||
Proofpoint Proofpoint provides cybersecurity solutions to protect people, data, and AI across email, cloud, and collaboration tools. | Sunnyvale, United States | 2002 | Owned by Thoma Bravo | ||
Vireo Sentinel Vireo Sentinel provides browser-based AI governance to monitor and protect sensitive data. | Perth, Australia | 2025 | Private |
Recent deals in data loss prevention
All data loss prevention dealsAcquisitions come from SecurityWeek's monthly M&A round-ups from 2021 onwards, from Cybersecurity Ventures' quarterly M&A reports for 2020, and a few from Wikipedia lists. These are dated to the month. A few deals added from the news are dated to the day. Smaller deals may be missing. Amounts are in US dollars.