Company lists · Data refreshed September 2026

Top 25 Cybersecurity transformation services based in the United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 7,055 companies tracked

RevenueBase identified 7,055 cybersecurity transformation services headquartered in the United States as of September 2026 and tracks 314,249 professional contacts across them, including 115,892 with verified work emails. New York is the largest hub.

This list covers cybersecurity transformation services 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

7,055Companies

314,249Contacts tracked

115,892Verified emails

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The 25 largest cybersecurity transformation services based in the United States

Ranked by team size

Top 25 of 7,055 cybersecurity transformation services 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 cybersecurity transformation services: 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	DXC Technology	Indirect evidence	Ashburn, VA, United StatesHQ checked Sep 28, 2026	10001+	82,768 contacts →
	Indirect evidence “DXC Technology helps global companies run their mission-critical systems and operations while modernizing IT, optimizing data architectures, and ensuring security and scalability…” Source: RevenueBase Database · checked Sep 28, 2026
2	Palo Alto Networks	Partial evidence	Santa Clara, CA, United StatesHQ checked Sep 28, 2026	10001+	18,431 contacts →
	Partial evidence “Palo Alto Networks, the global cybersecurity leader, is shaping the cloud-centric future with technology that is transforming the way people and organizations operate.” Source: RevenueBase Database · checked Sep 28, 2026
3	Fortinet	Indirect evidence	Sunnyvale, CA, United StatesHQ checked Sep 28, 2026	10001+	14,289 contacts →
	Indirect evidence “Fortinet makes possible a digital world that we can always trust through its mission to protect people, devices, and data everywhere.” Source: RevenueBase Database · checked Sep 28, 2026
4	Insight	Indirect evidence	Chandler, AZ, United StatesHQ checked Sep 28, 2026	10001+	12,899 contacts →
	Indirect evidence “Insight Enterprises, Inc.” Source: RevenueBase Database · checked Sep 28, 2026
5	Apex Systems	Indirect evidence	Glen Allen, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	12,231 contacts →
	Indirect evidence “Everforth Apex Systems, part of the Everforth ™ Network, is a leading global technology services company specializing in customizable industry-specific solutions that turns…” Source: RevenueBase Database · checked Sep 28, 2026
6	Symantec	Partial evidence	San Jose, CA, United StatesHQ checked Sep 28, 2026	10001+	11,169 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 28, 2026
7	Compunnel INC	Partial evidence	Princeton, NJ, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,502 contacts →
	Partial evidence “Compunnel serves as a global partner for talent, digital, and cybersecurity solutions, designed to help enterprises staff critical roles, modernize technology, and strengthen…” Source: RevenueBase Database · checked Sep 28, 2026
8	Trianz	Partial evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,331 contacts →
	Partial evidence “Trianz is a "transformation services as a software" company - helping enterprises accelerate cloud adoption and AI transformation through Concierto, our unified, AI-first platform…” Source: RevenueBase Database · checked Sep 28, 2026
9	CTG	Partial evidence	Amherst, NY, United StatesHQ checked Sep 28, 2026	5,001-10,000	2,264 contacts →
	Partial evidence “CTG, a Cegeka company, is at the forefront of digital transformation, offering innovative IT solutions and services that accelerate your strategy and project momentum.” Source: RevenueBase Database · checked Sep 28, 2026
10	OPTIV	Indirect evidence	Leawood, KS, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,222 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 28, 2026
11	Techwave	Partial evidence	Houston, TX, United StatesHQ checked Sep 28, 2026	1,001-5,000	2,140 contacts →
	Partial evidence “Techwave is a leading global IT and engineering services and solutions company revolutionizing digital transformation.” Source: RevenueBase Database · checked Sep 28, 2026
12	Eplus INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,749 contacts →
	Indirect evidence “ePlus is a customer-first, services-led, results-driven and trusted industry leader that helps organizations secure, modernize, optimize, and scale every aspect of their IT…” Source: RevenueBase Database · checked Sep 28, 2026
13	DMI	Partial evidence	Mclean, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,683 contacts →
	Partial evidence “DMI is a leading provider of digital services and technology solutions with a focus on end-to-end managed services, including managed mobility, cloud, cybersecurity, network…” Source: RevenueBase Database · checked Sep 28, 2026
14	Fortra	Partial evidence	Eden Prairie, MN, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,648 contacts →
	Partial evidence “Fortra delivers AI-amplified cybersecurity solutions that help organizations use and protect data with confidence.” Source: RevenueBase Database · checked Sep 28, 2026
15	Dynetics, INC	Partial evidence	Huntsville, AL, United StatesHQ checked Sep 28, 2026	10001+	1,532 contacts →
	Partial evidence “Leidos Dynetics provides responsive, cost-effective engineering, scientific, IT solutions to the national security, cybersecurity, space, and critical infrastructure sectors.” Source: RevenueBase Database · checked Sep 28, 2026
16	Government Acquisitions	Partial evidence	Cincinnati, OH, United StatesHQ checked Sep 28, 2026	n/a	1,440 contacts →
	Partial evidence “Government Acquisitions, LLC (GAI) stands at the forefront of a transformative era, where artificial intelligence is reshaping our world and the stakes have never been higher.” Source: RevenueBase Database · checked Sep 28, 2026
17	OSI Digital	Indirect evidence	Calabasas, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,398 contacts →
	Indirect evidence “Established in California in 1993, OSI Digital has grown into a truly global business and technology solutions provider, committed to helping organizations transform, perform and…” Source: RevenueBase Database · checked Sep 28, 2026
18	Trace3	Partial evidence	Irvine, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,345 contacts →
	Partial evidence “Trace3 delivers business transformation.” Source: RevenueBase Database · checked Sep 28, 2026
19	Thales Cybersecurity Products	Partial evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	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 28, 2026
20	Guidepoint Security	Partial evidence	Reston, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,232 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 28, 2026
21	Imperva	Indirect evidence	Austin, TX, United StatesHQ checked Sep 28, 2026	10001+	1,217 contacts →
	Indirect evidence “On Dec.” Source: RevenueBase Database · checked Sep 28, 2026
22	programming.com	Indirect evidence	Los Angeles, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,114 contacts →
	Indirect evidence “Programming.com is a leading AI development and software development company helping global enterprises turn complex ideas into secure, intelligent and business-ready solutions.” Source: RevenueBase Database · checked Sep 28, 2026
23	Solugenix	Indirect evidence	Brea, CA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,063 contacts →
	Indirect evidence “Technology only matters when it helps the business run better.” Source: RevenueBase Database · checked Sep 28, 2026
24	GDT	Partial evidence	Dallas, TX, United StatesHQ checked Sep 28, 2026	501-1,000	1,032 contacts →
	Partial evidence “As an award-winning, global IT solutions provider, we are changing the nature of transformation.” Source: RevenueBase Database · checked Sep 28, 2026
25	Navisite	Partial evidence	Andover, MA, United StatesHQ checked Sep 28, 2026	1,001-5,000	982 contacts →
	Partial evidence “Navisite, part of Accenture, is a trusted digital transformation partner for growing and established global brands.” Source: RevenueBase Database · checked Sep 28, 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 transformation services. 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 transformation services.
Partial evidence: Its own public description names part of cybersecurity transformation services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name cybersecurity transformation services. 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 7,055 cybersecurity transformation services based in the United States

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Cybersecurity transformation services based in the United States at a glance

As of Sep 28, 2026

36.9%Verified-email coverage

44.5Average contacts per company

1-10Median size (employees)

2.9%Largest-city concentration · New York

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

3,655

11-50

2,244

51-200

792

201-500

189

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 7,055 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 cybersecurity transformation services, 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 transformation services”. 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 transformation services), 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 transformation services, 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, 115,892 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.

Cybersecurity transformation services 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 transformation services, 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 transformation services are there based in the United States?

RevenueBase identified 7,055 cybersecurity transformation services 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?

DXC Technology, headquartered in Ashburn, tops this list with the largest team on record.

Which city has the most cybersecurity transformation services?

New York leads with 204 headquartered companies, followed by Houston (146) and Washington (139).

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 115,892 verified decision-maker contacts tracked across these 7,055 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.