Company lists · Data refreshed September 2026

Top 25 Cybersecurity investigation companies based in the United States

Name: Cybersecurity investigation companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 1, 2026 3,975 companies tracked

RevenueBase identified 3,975 cybersecurity investigation companies headquartered in the United States as of September 2026 and tracks 82,526 professional contacts across them, including 28,481 with verified work emails and 24,118 with mobile numbers. New York is the largest hub.

This list covers cybersecurity investigation 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 1, 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 RevenueBase Smart Search rating on every row Refreshed Sep 1, 2026 86% judged on-target in blind review

3,975Companies

82,526Contacts tracked

28,481Verified emails

24,118Mobile numbers

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The 25 largest cybersecurity investigation companies based in the United States

Ranked by team size

Top 25 of 3,975 cybersecurity investigation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 1, 2026. RevenueBase Smart Search rates how each company's information relates to cybersecurity investigation 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Symantec	Partial evidence	San Jose, CA, United States	10001+	11,179 contacts →
	Partial evidence “Your backstage pass to the most epic cybersecurity solutions on the market for Endpoint, Network, Data and Cloud security.” Source: RevenueBase Database · checked Sep 1, 2026
2	Trellix	Partial evidence	Plano, TX, United States	1,001-5,000	3,490 contacts →
	Partial evidence “Trellix is a global cybersecurity company delivering intelligence-led cyber resilience for security-conscious organizations at any stage of their journey.” Source: RevenueBase Database · checked Sep 1, 2026
3	OPTIV	Indirect evidence	Chantilly, VA, United States	1,001-5,000	2,206 contacts →
	Indirect evidence “Optiv is the cyber advisory and solutions leader, delivering strategic and technical expertise to nearly companies across every major industry.” Source: RevenueBase Database · checked Sep 1, 2026
4	Bitdefender	Partial evidence	Fort Lauderdale, FL, United States	1,001-5,000	2,141 contacts →
	Partial evidence “Bitdefender is a cybersecurity leader delivering best-in-class threat prevention, detection, and response solutions worldwide.” Source: RevenueBase Database · checked Sep 1, 2026
5	Barracuda	Partial evidence	Alpharetta, GA, United States	1,001-5,000	2,108 contacts →
	Partial evidence “Barracuda is a leading global cybersecurity company providing complete protection against complex threats for all size business.” Source: RevenueBase Database · checked Sep 1, 2026
6	Paragon Systems INC	Strong evidence	Herndon, VA, United States	10001+	1,946 contacts →
	Strong evidence “Paragon Systems employs over 10,500 professionals in specialized operations providing security, fire, investigations, inspections, cybersecurity, risk management, and mission…” Source: RevenueBase Database · checked Sep 1, 2026
7	Reliaquest	Indirect evidence	Sandy, UT, United States	1,001-5,000	1,252 contacts →
	Indirect evidence “ReliaQuest exists to Make Security Possible.” Source: RevenueBase Database · checked Sep 1, 2026
8	Thales Cybersecurity Products	Partial evidence	Austin, TX, United States	1,001-5,000	1,252 contacts →
	Partial evidence “Thales is a global leader in cybersecurity, helping the most trusted organizations in the world protect their most critical applications, data, and identities anywhere at scale.” Source: RevenueBase Database · checked Sep 1, 2026
9	Guidepoint Security	Partial evidence	Tampa, FL, United States	1,001-5,000	1,234 contacts →
	Partial evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 1, 2026
10	Cellebrite	Partial evidence	Parsippany, United States	1,001-5,000	1,223 contacts →
	Partial evidence “Cellebrite is the leader in digital intelligence and investigative analytics, partnering with public and private organizations to transform how they manage data in investigations…” Source: RevenueBase Database · checked Sep 1, 2026
11	Coalfire	Partial evidence	Chicago, IL, United States	1,001-5,000	960 contacts →
	Partial evidence “Coalfire is the premier Cybersecurity and Compliance Services leader for the tech, healthcare, and finance industries.(This page is maintained by Marketing.” Source: RevenueBase Database · checked Sep 1, 2026
12	Omniplex World Services Corporation	Partial evidence	Herndon, VA, United States	1,001-5,000	682 contacts →
	Partial evidence “OMNIPLEX World Services Corporation is a leader and innovator in delivering professional background investigations, intelligence support, and physical security services to…” Source: RevenueBase Database · checked Sep 1, 2026
13	Telos Corporation	Indirect evidence	Las Vegas, NV, United States	501-1,000	636 contacts →
	Indirect evidence “Telos empowers and protects the world’s most security-conscious organizations with solutions for continuous security assurance of individuals, systems, and information.” Source: RevenueBase Database · checked Sep 1, 2026
14	Vikingcloud	Partial evidence	Chicago, IL, United States	1,001-5,000	618 contacts →
	Partial evidence “VikingCloud delivers battle-tested cybersecurity and compliance solutions that simply work.” Source: RevenueBase Database · checked Sep 1, 2026
15	Ultraviolet Cyber	Indirect evidence	Phoenix, AZ, United States	501-1,000	517 contacts →
	Indirect evidence “UltraViolet Cyber is the only security operations partner that unifies red, blue, and purple team capabilities into one integrated program.” Source: RevenueBase Database · checked Sep 1, 2026
16	Guidance Software	Indirect evidence	Las Vegas, NV, United States	501-1,000	496 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 1, 2026
17	Securityhq	Partial evidence	New York, NY, United States	501-1,000	492 contacts →
	Partial evidence “SecurityHQ, a global cybersecurity company pioneering Security Performance Engineering for stronger operational performance and resilience.” Source: RevenueBase Database · checked Sep 1, 2026
18	Kudelski Security	Partial evidence	Irving, TX, United States	201-500	404 contacts →
	Partial evidence “Kudelski Security is a premier cybersecurity solutions provider, working with the most security-conscious organizations in Europe and across the United States.” Source: RevenueBase Database · checked Sep 1, 2026
19	RED Canary, A Zscaler Company	Indirect evidence	Denver, CO, United States	201-500	402 contacts →
	Indirect evidence “Red Canary stops cyber threats no one else does, so organizations can fearlessly pursue their missions.” Source: RevenueBase Database · checked Sep 1, 2026
20	Novacoast	Partial evidence	Arlington, TX, United States	201-500	378 contacts →
	Partial evidence “Novacoast is an international cybersecurity company specializing in IT services and software development.” Source: RevenueBase Database · checked Sep 1, 2026
21	horizon3.ai	Partial evidence	Durham, NC, United States	201-500	356 contacts →
	Partial evidence “Horizon3.ai answers the two most important questions in cybersecurity: If someone tried to compromise us, would we hold up?” Source: RevenueBase Database · checked Sep 1, 2026
22	Penlink	Indirect evidence	Lincoln, NE, United States	201-500	337 contacts →
	Indirect evidence “Penlink, the leading authority in digital intelligence, provides seamless integration of open-source intelligence and digital evidence for law enforcement, national security, the…” Source: RevenueBase Database · checked Sep 1, 2026
23	Vcheck	Partial evidence	New York, NY, United States	201-500	322 contacts →
	Partial evidence “Vcheck is a global investigations firm that helps institutions protect their investments by providing intelligence on individuals and entities.” Source: RevenueBase Database · checked Sep 1, 2026
24	Security Risk Advisors	Partial evidence	Philadelphia, PA, United States	201-500	311 contacts →
	Partial evidence “We deliver cybersecurity consulting, 24x7 operations and SaaS to leading companies in the Financial Services, Healthcare, Pharmaceuticals, Technology and Retail industries.” Source: RevenueBase Database · checked Sep 1, 2026
25	Logically	Indirect evidence	Danbury, CT, United States	201-500	307 contacts →
	Indirect evidence “Welcome to Logically.” Source: RevenueBase Database · checked Sep 1, 2026

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: cybersecurity investigation 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 cybersecurity investigation companies.
Partial evidence: Its own public description names part of cybersecurity investigation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity investigation 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 3,975 cybersecurity investigation companies based in the United States

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Cybersecurity investigation companies based in the United States at a glance

As of Sep 1, 2026

34.5%Verified-email coverage

29.2%Mobile-number coverage

20.8Average contacts per company

1-10Median size (employees)

3.4%Largest-city concentration · New York

Sep 1, 2026Page data refreshed

Companies by employee count

1-10

2,244

11-50

1,223

51-200

359

201-500

501-1,000

1,001-5,000

10001+

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 cybersecurity investigation 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 “cybersecurity investigation 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 cybersecurity investigation 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 cybersecurity investigation 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, 28,481 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 1, 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.

Cybersecurity investigation companies by metro

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 cybersecurity investigation 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 cybersecurity investigation companies are there based in the United States?

RevenueBase identified 3,975 cybersecurity investigation 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?

Symantec, headquartered in San Jose, tops this list with the largest team on record.

Which city has the most cybersecurity investigation companies?

New York leads with 136 headquartered companies, followed by Washington (84) and Atlanta (75).

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 28,481 verified decision-maker contacts tracked across these 3,975 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 1, 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.