Company lists · Data refreshed September 2026

Top 25 Breach investigation companies based in the United States

Name: Breach 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 19, 2026 1,248 companies tracked

RevenueBase identified 1,248 breach investigation companies headquartered in the United States as of September 2026 and tracks 20,582 professional contacts across them, including 8,994 with verified work emails. New York is the largest hub.

This list covers breach 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 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.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 19, 2026 86% judged on-target in blind review

1,248Companies

20,582Contacts tracked

8,994Verified emails

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The 25 largest breach investigation companies based in the United States

Ranked by team size

Top 25 of 1,248 breach investigation companies based in the United States, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to breach 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	Guidepoint Security	Indirect evidence	Reston, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,232 contacts →
	Indirect evidence “GuidePoint Security provides trusted cybersecurity expertise, solutions, and services that help organizations make informed decisions and minimize risk.” Source: RevenueBase Database · checked Sep 19, 2026
2	Cellebrite	Partial evidence	Vienna, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,230 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 19, 2026
3	Trustwave, A Levelblue Company	Indirect evidence	Chicago, IL, United StatesHQ checked Sep 19, 2026	501-1,000	874 contacts →
	Indirect evidence “Trustwave, a LevelBlue Company, is a globally recognized cybersecurity leader that reduces cyber risk and fortifies organizations against disruptive and damaging cyber threats.” Source: RevenueBase Database · checked Sep 19, 2026
4	Cyderes	Indirect evidence	Kansas City, MO, United StatesHQ checked Sep 19, 2026	1,001-5,000	844 contacts →
	Indirect evidence “Today’s threatscape is relentless.” Source: RevenueBase Database · checked Sep 19, 2026
5	Network Intelligence	Indirect evidence	Plano, TX, United StatesHQ checked Sep 19, 2026	501-1,000	641 contacts →
	Indirect evidence “At Network Intelligence, we combine our team of 500+ security professionals with Transilience – our cutting-edge AI platform.” Source: RevenueBase Database · checked Sep 19, 2026
6	Aujas Cybersecurity	Indirect evidence	Cupertino, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	473 contacts →
	Indirect evidence “At Aujas Cybersecurity, we specialize in building and transforming cybersecurity postures to help businesses effectively mitigate risks.” Source: RevenueBase Database · checked Sep 19, 2026
7	ARETE	Indirect evidence	Boca Raton, FL, United StatesHQ checked Sep 19, 2026	201-500	462 contacts →
	Indirect evidence “Arete helps organizations stay ahead of cyber threats with standardized, intelligence-led detection, response, resolution, and resilience capabilities.” Source: RevenueBase Database · checked Sep 19, 2026
8	Palo Alto Networks Unit 42	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	5,001-10,000	441 contacts →
	Indirect evidence “Palo Alto Networks Unit 42 brings together world-renowned threat researchers with an elite team of incident responders and security consultants to create an intelligence-driven…” Source: RevenueBase Database · checked Sep 19, 2026
9	Cipher A Prosegur Company	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	201-500	295 contacts →
	Indirect evidence “We are Cipher, a company from the Prosegur group specializing in Cybersecurity.” Source: RevenueBase Database · checked Sep 19, 2026
10	Prescient Security	Indirect evidence	Nashville, TN, United StatesHQ checked Sep 19, 2026	201-500	272 contacts →
	Indirect evidence “Prescient Security is a global cybersecurity and compliance firm delivering risk-based audits, advanced penetration testing, and end-to-end framework support.” Source: RevenueBase Database · checked Sep 19, 2026
11	Baxter Clewis Cybersecurity	Indirect evidence	Cedar Hill, TX, United StatesHQ checked Sep 19, 2026	201-500	255 contacts →
	Indirect evidence “Baxter Clewis Cybersecurity, we bring to the table a unique set of experiences that allow us to best serve your cybersecurity needs.” Source: RevenueBase Database · checked Sep 19, 2026
12	GM Sectec	Indirect evidence	San Juan, PR, United StatesHQ checked Sep 19, 2026	1,001-5,000	239 contacts →
	Indirect evidence “GM Sectec is a multi-national organization laser focused on cyber defense, advisory and fraud prevention.” Source: RevenueBase Database · checked Sep 19, 2026
13	Loginsoft	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	201-500	220 contacts →
	Indirect evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Sep 19, 2026
14	Mindpoint Group, A Quantum SKY Company	Indirect evidence	Reston, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	204 contacts →
	Indirect evidence “MindPoint Group, a Quantum Sky company, is a cybersecurity specialist trusted by U.S.” Source: RevenueBase Database · checked Sep 19, 2026
15	Tevora	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	201-500	199 contacts →
	Indirect evidence “Founded in 2003, Tevora is a specialized management consultancy focused on cybersecurity, risk, and compliance services.” Source: RevenueBase Database · checked Sep 19, 2026
16	Safeaeon INC	Indirect evidence	Pleasanton, CA, United StatesHQ checked Sep 19, 2026	51-200	196 contacts →
	Indirect evidence “SafeAeon leads the industry as a top-tier Cybersecurity-as-a-Service provider, delivering 24x7 premium Managed Security Services with AI-powered and human-driven 24x7 SOC…” Source: RevenueBase Database · checked Sep 19, 2026
17	Deepseas	Indirect evidence	Globally Distributed, United StatesHQ checked Sep 19, 2026	201-500	182 contacts →
	Indirect evidence “With 30 years of experience in cyber defense, DeepSeas is trusted by nearly clients around the world, including Fortune 100 enterprises and mid-market organizations, municipality…” Source: RevenueBase Database · checked Sep 19, 2026
18	Cypfer	Indirect evidence	Miami, FL, United StatesHQ checked Sep 19, 2026	51-200	178 contacts →
	Indirect evidence “Global Cyber Certainty Champions, in an uncertain digital world.” Source: RevenueBase Database · checked Sep 19, 2026
19	Cyber Advisors	Indirect evidence	Maple Grove, MN, United StatesHQ checked Sep 19, 2026	201-500	176 contacts →
	Indirect evidence “Cyber Advisors is a nationwide leader in cyber security, providing a comprehensive range of Offensive, Defensive, and Risk Management services.” Source: RevenueBase Database · checked Sep 19, 2026
20	Ampcus Cyber	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 19, 2026	1,001-5,000	170 contacts →
	Indirect evidence “Trusted By 2,880+ World-Class Brands And Organizations Of All Sizes…!” Source: RevenueBase Database · checked Sep 19, 2026
21	Valuementor	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	51-200	167 contacts →
	Indirect evidence “ValueMentor is a global information security consulting & services company that delivers real results to global business in maximizing cybersecurity.” Source: RevenueBase Database · checked Sep 19, 2026
22	Hitachi Cyber	Indirect evidence	Santa Clara, CA, United StatesHQ checked Sep 19, 2026	501-1,000	159 contacts →
	Indirect evidence “Hitachi Systems Trusted Cyber Management Inc.” Source: RevenueBase Database · checked Sep 19, 2026
23	Beazley Security	Indirect evidence	West Hartford, CT, United StatesHQ checked Sep 19, 2026	51-200	157 contacts →
	Indirect evidence “Beazley Security is a global cyber risk management firm committed to helping clients develop true cyber resilience, improving their ability to withstand and recover from any…” Source: RevenueBase Database · checked Sep 19, 2026
24	At&t Cybersecurity	Indirect evidence	Dallas, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	156 contacts →
	Indirect evidence “AT & T Cybersecurity’s Edge-to-Edge technologies provide phenomenal threat intelligence, collaborative defense, security without the seams, and solutions that fit your business.” Source: RevenueBase Database · checked Sep 19, 2026
25	Nuharbor	Indirect evidence	Colchester, VT, United StatesHQ checked Sep 19, 2026	51-200	151 contacts →
	Indirect evidence “nuHarbor is a U.S-based cybersecurity firm trusted by public sector and critical infrastructure organizations nationwide.” Source: RevenueBase Database · checked Sep 19, 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: breach 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 breach investigation companies.
Partial evidence: Its own public description names part of breach investigation companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name breach 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 1,248 breach investigation companies based in the United States

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Breach investigation companies based in the United States at a glance

As of Sep 19, 2026

43.7%Verified-email coverage

16.5Average contacts per company

1-10Median size (employees)

3.6%Largest-city concentration · New York

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

695

11-50

379

51-200

122

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 1,248 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 breach 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 “breach 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 breach 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 breach 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, 8,994 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.

Breach investigation companies by metro

Breach investigation companies in New York45
Breach investigation companies in Austin25
Breach investigation companies in Miami25

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

RevenueBase identified 1,248 breach 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?

Guidepoint Security, headquartered in Reston, tops this list with the largest team on record.

Which city has the most breach investigation companies?

New York leads with 45 headquartered companies, followed by Austin (25) and Miami (25).

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 8,994 verified decision-maker contacts tracked across these 1,248 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.