Company lists · Data refreshed September 2026

Top 25 Insider threat detection software companies based in the United States

RevenueBase identified 252 insider threat detection software companies headquartered in the United States as of September 2026 and tracks 15,996 professional contacts across them, including 9,213 with verified work emails. New York is the largest hub.

This list covers insider threat detection software 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 28, 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 28, 2026 86% judged on-target in blind review
252Companies
15,996Contacts tracked
9,213Verified emails
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The 25 largest insider threat detection software companies based in the United States

Ranked by team size
Top 25 of 252 insider threat detection software companies based in the United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to insider threat detection software companies: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceSunnyvale, CA, United StatesHQ checked Sep 28, 20261,001-5,0004,722 contacts →

Indirect evidence

“Intent-based protection for every human and every AI agent, across all data.”

Source: RevenueBase Database · checked Sep 28, 2026
2Strong evidenceMiami, FL, United StatesHQ checked Sep 28, 20261,001-5,0002,715 contacts →

Strong evidence

“Varonis unifies AI-native data security, AI security and governance, and behavior-based threat detection.”

Source: RevenueBase Database · checked Sep 28, 2026
3Indirect evidenceBoston, MA, United StatesHQ checked Sep 28, 2026501-1,0001,030 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
4Indirect evidenceBroomfield, CO, United StatesHQ checked Sep 28, 2026501-1,000876 contacts →

Indirect evidence

“Exabeam is the leader in Behavior Intelligence for the agentic enterprise.”

Source: RevenueBase Database · checked Sep 28, 2026
5Indirect evidencePasadena, CA, United StatesHQ checked Sep 28, 2026501-1,000492 contacts →

Indirect evidence

“Guidance (NASDAQ: GUID) exists to turn chaos and the unknown into order and the known-so that companies and their customers can go about their daily lives as usual without worry…”

Source: RevenueBase Database · checked Sep 28, 2026
6Indirect evidenceEl Segundo, CA, United StatesHQ checked Sep 28, 2026201-500325 contacts →

Indirect evidence

“Gurucul is a security analytics company founded in data science that delivers radical clarity about cyber risk.”

Source: RevenueBase Database · checked Sep 28, 2026
7Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 2026201-500317 contacts →

Indirect evidence

“At Ontic, you’ll join a team driven by collaboration, innovation, and a shared sense of purpose.”

Source: RevenueBase Database · checked Sep 28, 2026
8Indirect evidenceArlington, VA, United StatesHQ checked Sep 28, 202651-200303 contacts →

Indirect evidence

“Dexis is a mission-driven security analytics company that helps U.S.”

Source: RevenueBase Database · checked Sep 28, 2026
9Indirect evidenceWashington, DC, United StatesHQ checked Sep 28, 2026201-500273 contacts →

Indirect evidence

“Babel Street delivers mission-grade risk intelligence for organizations across government, defense, and the private sector to expose hidden identities, secure vendor networks, and…”

Source: RevenueBase Database · checked Sep 28, 2026
10Indirect evidencePalo Alto, United StatesHQ checked Sep 28, 2026201-500255 contacts →

Indirect 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 28, 2026
11Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 2026201-500245 contacts →

Indirect evidence

“SpyCloud transforms recaptured darknet data to disrupt cybercrime.”

Source: RevenueBase Database · checked Sep 28, 2026
12Indirect evidenceFrisco, United StatesHQ checked Sep 28, 2026201-500191 contacts →

Indirect evidence

“Intel 471 is the premier provider of cybercrime intelligence.”

Source: RevenueBase Database · checked Sep 28, 2026
13Strong evidenceBoston, MA, United StatesHQ checked Sep 28, 20261,001-5,000191 contacts →

Strong evidence

“NetWitness provides comprehensive and highly scalable threat detection and response capabilities for organizations around the world.”

Source: RevenueBase Database · checked Sep 28, 2026
14Indirect evidenceCheyenne, WY, United StatesHQ checked Sep 28, 202651-200191 contacts →

Indirect evidence

“At Teramind, we're pioneering a predictive, AI-driven approach to safeguarding organizations' people, data, and operations.”

Source: RevenueBase Database · checked Sep 28, 2026
15Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-200130 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 28, 2026
16Partial evidenceSaratoga, CA, United StatesHQ checked Sep 28, 202651-200125 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 28, 2026
17Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 28, 202651-200108 contacts →

Indirect evidence

“Forward Slope is now part of Lyntris.”

Source: RevenueBase Database · checked Sep 28, 2026
18Partial evidenceBoston, MA, United StatesHQ checked Sep 28, 202651-200100 contacts →

Partial evidence

“AI-turbocharged detection intelligence.”

Source: RevenueBase Database · checked Sep 28, 2026
19Indirect evidenceSan Francisco, CA, United StatesHQ checked Sep 28, 202651-20089 contacts →

Indirect evidence

“Nightfall AI the AI-native, all-in-one data loss prevention platform.”

Source: RevenueBase Database · checked Sep 28, 2026
20Partial evidenceHenderson, NV, United StatesHQ checked Sep 28, 202611-5085 contacts →

Partial evidence

“Virtual Guard, Inc.offers cost-effective surveillance, intrusion detection, and reporting solutions that translate into a proactive, event-driven process for enhanced safety and…”

Source: RevenueBase Database · checked Sep 28, 2026
21Partial evidenceMiami, FL, United StatesHQ checked Sep 28, 202651-20082 contacts →

Partial evidence

“Apura Cyber Corp is a company with deep technical expertise and extensive experience in threat intelligence, digital forensics, incident response, and anti-fraud operations.”

Source: RevenueBase Database · checked Sep 28, 2026
22Partial evidenceCupertino, CA, United StatesHQ checked Sep 28, 202651-20079 contacts →

Partial evidence

“Threatcop, a leading security awareness company, is a pioneer in People Security Management that offers leading AI-powered technology focused on social engineering and email-based…”

Source: RevenueBase Database · checked Sep 28, 2026
23Indirect evidenceAustin, TX, United StatesHQ checked Sep 28, 202651-20078 contacts →

Indirect evidence

“Athena Security, a recognized leader in the security industry, our mission is to help #SaveLives.”

Source: RevenueBase Database · checked Sep 28, 2026
24Indirect evidenceTacoma, WA, United StatesHQ checked Sep 28, 202651-20068 contacts →

Indirect evidence

“IID is an Infoblox company.”

Source: RevenueBase Database · checked Sep 28, 2026
25Partial evidenceMiami, FL, United StatesHQ checked Sep 28, 202651-20065 contacts →

Partial evidence

“Q6 Cyber is an innovative threat intelligence company.”

Source: RevenueBase Database · checked Sep 28, 2026

Showing 25 of 252 insider threat detection software companies based in the United States

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Insider threat detection software companies based in the United States at a glance

As of Sep 28, 2026
57.6%Verified-email coverage
63.5Average contacts per company
11-50Median size (employees)
7.1%Largest-city concentration · New York
Sep 28, 2026Page data refreshed

Companies by employee count

1-10
68
11-50
105
51-200
54
201-500
13
501-1,000
4
1,001-5,000
5
10001+
2

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 252 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 insider threat detection software 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 “insider threat detection software 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 insider threat detection software 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 insider threat detection software 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, 9,213 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 28, 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 insider threat detection software 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 insider threat detection software companies are there based in the United States?

RevenueBase identified 252 insider threat detection software 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?

Proofpoint, headquartered in Sunnyvale, tops this list with the largest team on record.

Which city has the most insider threat detection software companies?

New York leads with 18 headquartered companies, followed by San Francisco (12) and Austin (10).

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 9,213 verified decision-maker contacts tracked across these 252 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 28, 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.