Company lists · Data refreshed September 2026

Top 20 Infrastructure security companies based in Mclean, United States

Name: Infrastructure security companies based in Mclean, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 3, 2026 33 companies tracked

RevenueBase identified 33 infrastructure security companies headquartered in Mclean, United States as of September 2026 and tracks 1,267 professional contacts across them, including 407 with verified work emails. New York is the largest hub.

This list covers infrastructure security companies headquartered in Mclean, 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, how directly it supports the match, and when it was last checked. Data refreshed September 3, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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 Match evidence on every row Refreshed Sep 3, 2026 86% judged on-target in blind review

33Companies

1,267Contacts tracked

407Verified emails

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The 20 largest infrastructure security companies based in Mclean, United States

Ranked by team size

Top 20 of 33 infrastructure security companies based in Mclean, United States, ranked by team size, largest first. Data refreshed Sep 3, 2026. Evidence rates how directly each company's own description names infrastructure security companies: strong (names it), partial (names part of it), indirect (matched on its full profile rather than the summary shown). Click a count to unlock that company's people.
#	Company	Headquarters	Employees	Contacts
1	Xcelerate SolutionsIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	1,001-5,000	445
	“At Xcelerate, safeguarding the nation isn’t just a mission-it’s our obsession.” Source: company website · checked Sep 3, 2026
2	Valiant SolutionsPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	201-500	156
	“Valiant Solutions, LLC stands out as a premier provider of Cybersecurity and IT services aiding the Federal Government in staying ahead of complex information security challenges.” Source: company website · checked Sep 3, 2026
3	Network Designs, INCIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	51-200	151
	“NDi is a Verified Service-Disabled Veteran Owned Small Business [SDVOSB] professional services firm, supporting Federal and Commercial customers since 1995.” Source: company website · checked Sep 3, 2026
4	Easy Dynamics CorpIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	51-200	134
	“Easy Dynamics Corporation is a leading technology services provider with a core focus in Cybersecurity, Cloud Computing, and Information Sharing.” Source: company website · checked Sep 3, 2026
5	SalienseIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	51-200	106
	“Saliense is a high-end Technology Solutions provider based out of Tysons Corner, VA.” Source: company website · checked Sep 3, 2026
6	CRIPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	51-200	105
	“Communications Resource, Inc.(CRI) is a minority and Woman-Owned Small Business with over 30 years of focused security performance supporting over 40 government and commercial…” Source: company website · checked Sep 3, 2026
7	SquadraIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	29
	“Squadra Solutions delivers expert cybersecurity architecture, engineering, and advisory services to federal agencies, enterprises, and higher education institutions.” Source: company website · checked Sep 3, 2026
8	Digital Global Connectors, LLC DGCPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	20
	“Digital Global Connectors, LLC, is a Woman Owned Small Business that provides Cyber Security and Information Assurance services to the Federal and Private sectors, with core…” Source: company website · checked Sep 3, 2026
9	Tangent Technologies, LLCStrong evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	51-200	15
	“Tangent Technologies specializes in providing expert technical program management, cyber security infrastructure analysis, cloud services, and user-support services.” Source: company website · checked Sep 3, 2026
10	Axxum Technologies LLCPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	11
	“Axxum Technologies is a premier provider of Network Communications and Information Technology Security Solutions.” Source: company website · checked Sep 3, 2026
11	Techicon, INCPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	10
	“Experts in Cyber Security focusing on assessment, compliance, FedRAMP advisory, and IT and OT penetration testing.” Source: company website · checked Sep 3, 2026
12	The Shattuck GroupPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	8
	“The Shattuck Group is a cyber security engineering firm that specializes in protecting workloads from insider threats.” Source: company website · checked Sep 3, 2026
13	H3o Labs, LLCIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	3
	“H3O Labs is headquartered in VA with offices in McLean and Fairfax.” Source: company website · checked Sep 3, 2026
14	SengexIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	3
	“Sengex is a leader in large scale cyber and physical threat detection and mitigation.” Source: company website · checked Sep 3, 2026
15	SecureitsmPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	1-10	3
	“is a trusted cybersecurity and compliance partner helping organizations strengthen their security posture and meet complex regulatory requirements.” Source: company website · checked Sep 3, 2026
16	Clear EntropyIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	2
	“We're an innovative technology firm in the cybersecurity and digital transformation space, with disciplines in IT Solutions, Mission Support and Consulting for both federal…” Source: company website · checked Sep 3, 2026
17	W TchtowerPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	11-50	2
	“Founded in 2010 by former Director of US CERT Mischel Kwon, and headquartered in McLean, VA, W@tchTower® LLC is a premier cybersecurity firm leading the transformation of security…” Source: company website · checked Sep 3, 2026
18	Draco IT Services, LLCPartial evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	1-10	1
	“Draco IT Services offers exceptional cloud security technical support for federal, state, and local organizations, with a team of highly experienced IT professionals providing the…” Source: company website · checked Sep 3, 2026
19	Metavance SolutionsIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	1-10	1
	“Metavance Solutions is a management consulting and information technology services company serving clients in the private and public sectors.” Source: company website · checked Sep 3, 2026
20	Maximum Justice CybersecurityIndirect evidence	Mclean, VA, United StatesHQ checked Sep 3, 2026	1-10	1
	“MJC performs in-depth research to help businesses make decisions on technology upgrades.” Source: company website · checked Sep 3, 2026

Showing 20 of 33 infrastructure security companies based in Mclean, United States

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Infrastructure security companies based in Mclean, United States at a glance

As of Sep 3, 2026

11-50Median size (employees)

New YorkLargest hub · 141 HQs

Contacts with mobile numbers

Sep 3, 2026Data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than this city, so it is reported there. Company counts and contact totals on this page are exact for Mclean, over 33 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 infrastructure security companies, so some rows will be adjacent to the category rather than pure plays. The description and evidence 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 SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Mclean, United States whose own description of what they do matches “infrastructure security companies”. Matching reads each company's description, not its industry code or its name.
What we exclude: Companies whose own description does not clearly place them among infrastructure security companies, and records with no verified work email. Companies headquartered outside Mclean 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 an evidence 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, 407 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 3, 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.

Infrastructure security companies by metro in the United States

Frequently asked

How many infrastructure security companies are there based in Mclean, United States?

RevenueBase identified 33 infrastructure security companies headquartered in Mclean, 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?

Xcelerate Solutions, headquartered in Mclean, tops this list with the largest team on record.

Which city has the most infrastructure security companies?

New York leads with 141 headquartered companies, followed by Washington (105) and Houston (98).

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 407 verified decision-maker contacts tracked across these 33 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 3, 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 SmartSearch, 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.