Company lists · Data refreshed September 2026
Top 25 Data exfiltration prevention companies based in the United States
RevenueBase identified 212 data exfiltration prevention companies headquartered in the United States as of September 2026 and tracks 4,866 professional contacts across them, including 1,910 with verified work emails. New York is the largest hub.
This list covers data exfiltration prevention companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 19, 2026.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.
The 25 largest data exfiltration prevention companies based in the United States
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 497 contacts → | ||||
Partial evidence “Seclore is the Data Security Intelligence company for the era of enterprise AI, helping organizations turn data and AI risk into readiness.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 348 contacts → | ||||
Partial evidence “Protegrity protects the sensitive data and enterprise knowledge that power AI.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 3 | 276 contacts → | ||||
Partial evidence “In the ever-growing world of Cloud Computing, Big Data and the Internet of Things, NIKSUN® is the industry leader in making the unknown known.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 4 | 255 contacts → | ||||
Partial evidence “Cyberhaven is a leader in Data Security for the Agentic Enterprise, trusted by the world's most innovative companies to protect their most sensitive data.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 5 | 253 contacts → | ||||
Strong evidence “Owl Cyber Defense provides hardened network security checkpoints for absolute threat prevention and secure data availability through cross domain and data diode solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 6 | 154 contacts → | ||||
Strong evidence “Digital Guardian is Fortra's solution for data loss prevention.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 128 contacts → | ||||
Partial evidence “LinkShadow is redefining cybersecurity with CyberMeshX, a unified platform that integrates Data, Identity, and Network protection.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 125 contacts → | ||||
Partial evidence “As the global leader for insider risk management, DTEX empowers organizations to prevent data loss and support a trusted workforce by stopping insider risks from becoming insider…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 108 contacts → | ||||
Partial evidence “LayerX agentless AI & Browser Security Platform protects organizations against AI, SaaS, web & data leakage risks across any browser, application, device, and identity, with no…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 10 | 106 contacts → | ||||
Indirect evidence “ThreatDown is a standalone leader in elite Managed Detection and Response (MDR), purpose-built to empower resource-constrained security teams with high-efficacy protection…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 89 contacts → | ||||
Strong evidence “Nightfall AI the AI-native, all-in-one data loss prevention platform.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 83 contacts → | ||||
Partial evidence “GTB Technologies® delivers a data-centric platform unifying DLP and DSPM to protect sensitive data across endpoints, network, cloud, and SaaS-leveraging deep content inspection to…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 81 contacts → | ||||
Partial evidence “ACTFORE delivers AI/ML-powered data mining response solutions for legal teams, insurance carriers, and corporations.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 61 contacts → | ||||
Indirect evidence “MIND is on a mission to help organizations thrive in a digital world by protecting their most sensitive information.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 61 contacts → | ||||
Indirect evidence “Founded in 2014, IronNet Cybersecurity is a global cybersecurity leader that is revolutionizing how enterprises, industries, and governments secure their networks.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 59 contacts → | ||||
Partial evidence “SecureData delivers enterprise-grade data security products and managed IT services trusted by organizations of every size across regulated industries worldwide.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 54 contacts → | ||||
Partial evidence “Certes has been a pioneer in delivering advanced cybersecurity solutions focused on Data Protection and Risk Mitigation (DPRM) for more than 20 years.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 38 contacts → | ||||
Indirect evidence “ManTech Cyber Solutions International (MCSI) delivers advanced cybersecurity and information security products to the federal and commercial marketplace.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 36 contacts → | ||||
Partial evidence “In a world that relies more and more on data, understanding and protecting it is crucial.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 34 contacts → | ||||
Indirect evidence “We took a different path when developing our threat detection and response solutions.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 34 contacts → | ||||
Indirect evidence “Established in 2001, Zecurion has emerged as a worldwide authority in IT security solutions, safeguarding the interests of more than corporate clients spanning across 70+…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 32 contacts → | ||||
Partial evidence “Vormetric Data Security was acquired by Thales in March 2016.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 31 contacts → | ||||
Indirect evidence “ObserveIT was acquired by Proofpoint.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 30 contacts → | ||||
Indirect evidence “Arista’s suite of security solutions helps customers accelerate their journey toward zero-trust maturity.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 29 contacts → | ||||
Partial evidence “Baffle secures data in the cloud and when shared across the entire analytics pipeline with no performance impact on the user experience.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
RevenueBase Smart Search
RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: data exfiltration prevention companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.
- Strong evidence
- The company's own public description of its business names data exfiltration prevention companies.
- Partial evidence
- Its own public description names part of data exfiltration prevention companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name data exfiltration prevention companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.
RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.
Showing 25 of 212 data exfiltration prevention companies based in the United States
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Data exfiltration prevention companies based in the United States at a glance
As of Sep 19, 2026Companies by employee count
Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 212 companies.
How this list was built
Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among data exfiltration prevention companies, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
- What qualifies
- Companies headquartered in the United States whose own description of what they do matches “data exfiltration prevention companies”. Matching reads each company's description, not its industry code or its name.
- RevenueBase Smart Search
- RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names data exfiltration prevention companies), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
- What we exclude
- Companies whose own description does not clearly place them among data exfiltration prevention companies, and records with no verified work email. Companies headquartered outside United States are excluded even when they keep an office there.
- Match quality
- In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
- Ranking
- Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
- Verification
- Every listed company carries at least one verified work email, 1,910 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
- Refresh
- This page's figures were pulled from the company graph on September 19, 2026. Lists refresh periodically as the graph is re-checked.
- Corrections
- Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.
Frequently asked
What is RevenueBase Smart Search?
RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names data exfiltration prevention companies, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.
How many data exfiltration prevention companies are there based in the United States?
RevenueBase identified 212 data exfiltration prevention companies headquartered in the United States as of September 2026, matched on each company's own description of what it does rather than its industry code.
What is the largest company on this list?
Seclore, headquartered in Santa Clara, tops this list with the largest team on record.
Which city has the most data exfiltration prevention companies?
New York leads with 17 headquartered companies, followed by Austin (8) and San Francisco (7).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 1,910 verified decision-maker contacts tracked across these 212 companies.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 19, 2026.
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About this data
RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.
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