cybersecdirectory

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
CompanyBased inFoundedSizeOwnershipRevenue
Kiteworks

Kiteworks provides a platform for secure data exchange and governance across email, file sharing, and APIs.

San Mateo, United States1999530 staffPrivate
Cyberhaven

Cyberhaven provides a data security platform that traces data lineage to protect information across human and AI workflows.

Austin, United StatesPrivate
Data & More

Data & More is a Danish software company founded in 2016.

Copenhagen, Denmark2016Private
Forcepoint

Forcepoint provides data security software that controls how AI applications and agents access sensitive information.

Austin, United States1994Owned by Francisco Partners
PII Crawler

PII Crawler scans files, network shares and email for personal data on your own hardware.

Vancouver, Washington, United States2023Private
Siberson

Siberson provides data security software for discovering, classifying, preventing loss of and monitoring sensitive data.

Amsterdam, NetherlandsPrivate
SmartKeeper

SmartKeeper is a security company that sells endpoint protection and control products.

Seoul, South Korea2001Private
MarkAny

MarkAny develops document security, forgery prevention, content protection, and AI video surveillance software.

Seoul, South Korea1999Private
Netwrix

Netwrix provides software to protect data and secure identities across IT environments.

Frisco, United States2006Owned by TA Associates
Safetica Technologies

Safetica provides AI-powered data protection, insider risk, cloud security, and compliance software.

San Jose, United States2007Private

Also active in data loss prevention

34 companies
CompanyBased inFoundedSizeOwnershipRevenue
Microsoft

Microsoft sells software, cloud services, hardware, and gaming products.

Redmond, United States1975228,000 staffPublic, MSFT$331.8bn (FY2026)
Palo Alto Networks

Palo Alto Networks provides cybersecurity platforms and services to protect organizations from cyber threats.

Santa Clara, United States200513,900 staffPublic, PANW$11.5bn (FY2026)
Open Text Corporation

OpenText provides software and services for managing information across an organisation.

Waterloo, Canada1991Public, OTEX$5.2bn (FY2026)
Zscaler

Zscaler provides a cloud-native zero trust cybersecurity platform that securely connects users, devices, and applications.

San Jose, United States2007Public, ZS$3.4bn (FY2026)
Netskope, Inc

Netskope provides cloud security and networking services for organisations.

Santa Clara, United States2012Public, NTSK$709.0m (FY2026)
Varonis

Varonis provides data security software that protects data across cloud, SaaS and on-premises environments.

Miami, United States2005Public, 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 States2018Private
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 States2024Private
BigID

BigID provides a data intelligence platform for discovering, classifying, and governing enterprise data and AI.

New York City, Israel2016Private
Cyera

Cyera provides a data security platform that discovers and protects sensitive data across cloud environments.

New York, United States2021Private
Cymphony

Cymphony provides an AI-native workforce security platform that maps identities, data, and permissions to reduce risk.

Tel Aviv, IsraelPrivate
dope.security

dope.security sells a secure web gateway called dope.swg.

Mountain View, United States2021Private
Egress Software Technologies Ltd

Egress provides cloud email security that uses adaptive controls to stop phishing and data loss.

London, United Kingdom2007Part of KnowBe4
Everfox

Everfox provides cybersecurity solutions for cross domain, threat protection, and insider risk management.

Herndon, United StatesPrivate
Fendr

Fendr provides AI usage controls for businesses.

London, United Kingdom2025Private
Harmonic Security

Harmonic Security provides software that discovers, classifies and controls how employees use AI tools at work.

San Francisco, United States2023Private
Island

Island provides an enterprise browser that integrates security, IT, and AI-powered productivity for organisations.

Dallas, United StatesPrivate
Jscrambler

Jscrambler provides client-side security software that protects code and data in web browsers.

Porto, Portugal2010Private
Lakera

Lakera provides security software that protects enterprise AI applications from prompt attacks and data leakage.

Zurich, Switzerland2021Part of Check Point
Lasso Security

Lasso Security provides a platform to secure AI agents and applications at enterprise scale.

Tel Aviv, Israel2023Private
Lepide

Lepide provides software to audit and secure Active Directory, files, and Microsoft 365.

Austin, United States2005Private
Mimecast

Mimecast provides email security and human risk management services for organisations.

London, United Kingdom2003Owned by Permira
Paubox

Paubox provides HIPAA compliant email and security services for healthcare organisations.

San Francisco, United States2014Private
Sealgate

SealGate provides a security gateway that governs how AI agents access company data.

London, United Kingdom2025Private
Securiti

Securiti provides a platform for data security, privacy, governance and compliance across hybrid multicloud environments.

San Jose, United States2018Part of Veeam
Sentra

Sentra provides data security solutions to discover and protect sensitive data from AI applications.

New York, United StatesPrivate
Skyhigh Security

Skyhigh Security provides data-first security service edge for cloud and hybrid environments.

San Jose, United States2011Private
Versa Networks

Versa Networks provides secure access service edge (SASE) solutions that combine networking and security.

Santa Clara, United States2012Private
Virtru

Virtru provides encryption and access control for email, files, and SaaS applications.

Washington, United States2012Private
Deep Instinct

Deep Instinct provides deep learning-based data security that prevents malware and ransomware across cloud, NAS, applications, and endpoints.

New York, United States2014Private
Lattix Technologies Corp

Lattix Technologies Corp provides data security with encryption, policy, and audit trails.

Culpeper, United States2024Private
OPSWAT

OPSWAT provides cybersecurity solutions to protect critical infrastructure from file-borne and device-borne threats.

Tampa, United StatesPrivate
Proofpoint

Proofpoint provides cybersecurity solutions to protect people, data, and AI across email, cloud, and collaboration tools.

Sunnyvale, United States2002Owned by Thoma Bravo
Vireo Sentinel

Vireo Sentinel provides browser-based AI governance to monitor and protect sensitive data.

Perth, Australia2025Private

Recent deals in data loss prevention

All data loss prevention deals
DateDealAmountSource
16 Oct 2026Proofpoint acquired VaronisSource for Proofpoint buying Varonis, opens in a new tab$6.3bnSource for Proofpoint buying Varonis, opens in a new tab
15 Oct 2026Proofpoint acquired VaronisSource for Proofpoint buying Varonis, opens in a new tab$6.3bnSource for Proofpoint buying Varonis, opens in a new tab
1 Sept 2026Palo Alto Networks acquired ConsoleSource for Palo Alto Networks buying Console, opens in a new tabUndisclosedSource for Palo Alto Networks buying Console, opens in a new tab
September 2026Kiteworks acquired Bonfy.AISource for Kiteworks buying Bonfy.AI, opens in a new tabUndisclosedSource for Kiteworks buying Bonfy.AI, opens in a new tab
August 2026Kiteworks acquired WAMNET Japan K.KSource for Kiteworks buying WAMNET Japan K.K, opens in a new tabUndisclosedSource for Kiteworks buying WAMNET Japan K.K, opens in a new tab
July 2026Cyera acquired Oasis SecuritySource for Cyera buying Oasis Security, opens in a new tab$1bnSource for Cyera buying Oasis Security, opens in a new tab
May 2026Zscaler acquired Symmetry SystemsSource for Zscaler buying Symmetry Systems, opens in a new tabUndisclosedSource for Zscaler buying Symmetry Systems, opens in a new tab
May 2026Cyera acquired Genie SecuritySource for Cyera buying Genie Security, opens in a new tab$50mSource for Cyera buying Genie Security, opens in a new tab
April 2026Cyera acquired RyftSource for Cyera buying Ryft, opens in a new tabUndisclosedSource for Cyera buying Ryft, opens in a new tab
February 2026Proofpoint acquired AcuvitySource for Proofpoint buying Acuvity, opens in a new tabUndisclosedSource for Proofpoint buying Acuvity, opens in a new tab

Acquisitions 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.

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Often listed alongside data loss prevention