Company lists · Data verified August 2026

Top 25 Cybersecurity training companies based in the United States

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

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 2,746 companies tracked

There are 2,746 cybersecurity training companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 57,637 professional contacts across them, including 16,584 with verified work emails and 15,352 with mobile numbers. New York is the largest hub.

This list covers cybersecurity training 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. Data current as of August 28, 2026.

2,746Companies

57,637Contacts tracked

16,584Verified emails

15,352Mobile numbers

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The 25 largest cybersecurity training companies based in the United States

Ranked by team size

Top 25 of 2,746 cybersecurity training companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Symantec	San Jose, CA	10001+	11,179	876
2	Trellix	Plano, TX	1,001-5,000	3,490	1,633
3	Knowbe4	Clearwater, FL	1,001-5,000	2,378	1,484
4	Sans Institute	Rockville, MD	n/a	1,877	521
5	Fortra	Eden Prairie, MN	1,001-5,000	1,640	1,037
6	Ec-Council	Albuquerque, NM	1,001-5,000	1,269	330
7	Thales Cybersecurity Products	Austin, TX	1,001-5,000	1,252	645
8	Guidepoint Security	Tampa, FL	1,001-5,000	1,234	809
9	Offsec	New York, NY	201-500	878	43
10	ACI Learning	San Antonio, TX	201-500	538	99
11	Ultraviolet Cyber	Phoenix, AZ	501-1,000	517	258
12	Securityhq	New York, NY	501-1,000	492	279
13	Security Risk Advisors	Philadelphia, PA	201-500	311	216
14	Cipher A Prosegur Company	Miami, FL	201-500	294	70
15	Baxter Clewis Cybersecurity	Cedar Hill, TX	201-500	251	17
16	GM Sectec	Santurce	1,001-5,000	241	69
17	Netdata Cybersecurity	Miami, FL	201-500	209	78
18	Mindpoint Group, A Tyto Athene Company	Reston, VA	1,001-5,000	208	7
19	Deepseas	n/a	201-500	185	132
20	Cyber Advisors	Maple Grove, MN	201-500	180	112
21	Stratascale	Charlotte, NC	201-500	173	86
22	At&t Cybersecurity	Dallas, TX	1,001-5,000	158	29
23	Ciso Global	Scottsdale, AZ	201-500	134	85
24	Ishpi Information Technologies, Inc. Ishpi	Peoria, IL	201-500	127	32
25	Thrivedx	Miami, FL	1,001-5,000	78	4

Showing 25 of 2,746 cybersecurity training companies based in the United States

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Cybersecurity training companies based in the United States at a glance

As of Aug 28, 2026

1-10Median size (employees)

New YorkLargest hub · 83 HQs

15,352Contacts with mobile numbers

27Emails re-verified in last 30 days

Companies by employee count

1-10

1,581

11-50

852

51-200

227

201-500

501-1,000

1,001-5,000

10001+

Cybersecurity training companies by metro

Metro	Companies
Cybersecurity training companies in New York	83
Cybersecurity training companies in Austin	50
Cybersecurity training companies in Dallas	50
Cybersecurity training companies in Miami	49
Cybersecurity training companies in Atlanta	48
Cybersecurity training companies in Houston	46
Cybersecurity training companies in Chicago	43

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “cybersecurity training companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 27 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many cybersecurity training companies are there based in the United States?

There are 2,746 cybersecurity training companies headquartered in the United States as of August 2026 (RevenueBase).

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 training companies?

New York leads with 83 headquartered companies, followed by Austin (50) and Dallas (50).

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 16,584 verified decision-maker contacts tracked across these 2,746 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.