Company lists · Data refreshed September 2026

Top 25 Defense contractor cybersecurity services based in Alexandria, United States

Name: Defense contractor cybersecurity services based in Alexandria, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 28, 2026 57 companies tracked

RevenueBase identified 57 defense contractor cybersecurity services headquartered in Alexandria, United States as of September 2026 and tracks 4,697 professional contacts across them, including 725 with verified work emails. Across the United States, Washington is the largest hub for this category (115 companies); Alexandria has 57.

This list covers defense contractor cybersecurity services headquartered in Alexandria, 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

57Companies

4,697Contacts tracked

725Verified emails

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The 25 largest defense contractor cybersecurity services based in Alexandria, United States

Ranked by team size

Top 25 of 57 defense contractor cybersecurity services based in Alexandria, United States, ranked by team size, largest first. Data refreshed Sep 28, 2026. RevenueBase Smart Search rates how each company's information relates to defense contractor cybersecurity 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	Modern Technology Solutions, Inc. Mtsi	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,920 contacts →
	Indirect evidence “Modern Technology Solutions, Inc.(MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of…” Source: RevenueBase Database · checked Sep 28, 2026
2	VT Group VTG	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1,001-5,000	1,168 contacts →
	Indirect evidence “VTG delivers force modernization and digital transformation solutions that expand America’s competitive advantage in the modern battlespace.” Source: RevenueBase Database · checked Sep 28, 2026
3	Invictus International Consulting, LLC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	201-500	206 contacts →
	Indirect evidence “Invictus is a leading provider of technology services for national security systems.” Source: RevenueBase Database · checked Sep 28, 2026
4	DSD Laboratories	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	157 contacts →
	Partial evidence “DSD Laboratories delivers smart, dependable technology solutions that support critical national defense missions.” Source: RevenueBase Database · checked Sep 28, 2026
5	Brycetech	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	201-500	144 contacts →
	Partial evidence “BryceTech is a trusted leader in complex technology domains, delivering data-driven solutions in aerospace, biosecurity, and defense.” Source: RevenueBase Database · checked Sep 28, 2026
6	Darkstar Intelligence	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	125 contacts →
	Indirect evidence “DarkStar Intelligence is a Service-Disabled Veteran-Owned Small Business (SDVOSB) delivering advanced intelligence solutions to government and private sectors.” Source: RevenueBase Database · checked Sep 28, 2026
7	Mobius	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	123 contacts →
	Indirect evidence “Mobius is an award winning, Small Business Administration (SBA) certified Historically Underutilized Business Zone (HUBZone) company and certified Woman-Owned Small Business…” Source: RevenueBase Database · checked Sep 28, 2026
8	Edgesource Corporation	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	114 contacts →
	Indirect evidence “NATIONAL SECURITY EXPERTISE THAT POWERS MISSION SUCCESS Edgesource doesn't observe the mission from afar-we advance it from within.* 24/7/365 Vigilance * Automated Insights *…” Source: RevenueBase Database · checked Sep 28, 2026
9	AGE Solutions LLC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	109 contacts →
	Indirect evidence “AGE Solutions is a premier technology and professional services company, providing in-depth consulting, advanced technology solutions, and essential services throughout the U.S.” Source: RevenueBase Database · checked Sep 28, 2026
10	Dignari	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	201-500	103 contacts →
	Indirect evidence “Effective October 25, 2024, Dignari has been acquired by EY and will now be known as EY Dignari.” Source: RevenueBase Database · checked Sep 28, 2026
11	SBG Technology Solutions, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	82 contacts →
	Indirect evidence “SBG Technology Solutions, Inc.(SBG) a wholly-owned subsidiary of DSS, Inc, offers IT Governance, Program Management, Systems Engineering, Enterprise Modernization, Artificial…” Source: RevenueBase Database · checked Sep 28, 2026
12	Onezero Solutions	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	201-500	68 contacts →
	Indirect evidence “OneZero Solutions is an 8(a), Service-Disabled Veteran-Owned Small Business (SDVOSB) that is problem-solving and solutions-oriented.” Source: RevenueBase Database · checked Sep 28, 2026
13	Advantage Sci, LLC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	201-500	56 contacts →
	Indirect evidence “Advantage SCI is a professional security and counterintelligence firm, headquartered in Alexandria, Virginia.” Source: RevenueBase Database · checked Sep 28, 2026
14	Arrowpoint Corporation	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	47 contacts →
	Indirect evidence “Arrowpoint, a MorphWorks company, has delivered premiere information technology and consulting services.” Source: RevenueBase Database · checked Sep 28, 2026
15	Commonwealth Technology Innovation, An HII Company	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	47 contacts →
	Partial evidence “CTI, an HII company, provides specialized hardware, software, and mission support to our nation’s Defense, Intelligence, and Security communities.” Source: RevenueBase Database · checked Sep 28, 2026
16	Securicon, LLC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	11-50	27 contacts →
	Indirect evidence “Securicon provides expert consulting for application, system and network security.” Source: RevenueBase Database · checked Sep 28, 2026
17	Antean Technology	Indirect evidence	Alexandria, United StatesHQ checked Sep 28, 2026	11-50	14 contacts →
	Indirect evidence “3x Inc.” Source: RevenueBase Database · checked Sep 28, 2026
18	Gray Tier Technologies, LLC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	11-50	9 contacts →
	Partial evidence “Gray Tier Technolgies is a privately held company providing full cyclic cybersecurity services and products.” Source: RevenueBase Database · checked Sep 28, 2026
19	Pendulum	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1-10	9 contacts →
	Partial evidence “Pendulum is transforming cyber defense and information security.” Source: RevenueBase Database · checked Sep 28, 2026
20	Tech Leader Solutions, LLC	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1-10	7 contacts →
	Partial evidence “HUBZone Certified, Tech Leader Solutions, LLC provides Cybersecurity and IT Consulting services to CIOs and CTOs, supporting a wide range of IT programs through strategy…” Source: RevenueBase Database · checked Sep 28, 2026
21	Deployed Global Solutions, LLC	Strong evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	51-200	6 contacts →
	Strong evidence “Deployed Global Solutions, LLC is a defense contractor.” Source: RevenueBase Database · checked Sep 28, 2026
22	SWG Solutions	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Indirect evidence “At SWG, we provide comprehensive, cost-effective professional services support and expertise in system engineering solutions for our customer’s complex mission and enterprise IT…” Source: RevenueBase Database · checked Sep 28, 2026
23	Rosetech Marketing	Partial evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1-10	4 contacts →
	Partial evidence “A specialized marketing agency with deep domain knowledge of cybersecurity, data analytics, integrated risk management, software engineering, and strategy and transformation for…” Source: RevenueBase Database · checked Sep 28, 2026
24	Cerium Technology, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	11-50	3 contacts →
	Indirect evidence “Cerium Technology Services was established in 2009 to provide professional and affordable IT services.” Source: RevenueBase Database · checked Sep 28, 2026
25	Fusion Technology Strategies, INC	Indirect evidence	Alexandria, VA, United StatesHQ checked Sep 28, 2026	1-10	2 contacts →
	Indirect evidence “Fusion Technology Strategies (Fusion) is an SBA-certified Woman-Owned Small Business (WOSB) that specializes in delivering exceptional Cyber Security, CIO and CISO Advisory…” 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: defense contractor cybersecurity 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 defense contractor cybersecurity services.
Partial evidence: Its own public description names part of defense contractor cybersecurity services, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense contractor cybersecurity 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 57 defense contractor cybersecurity services based in Alexandria, United States

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Defense contractor cybersecurity services based in Alexandria, United States at a glance

As of Sep 28, 2026

15.4%Verified-email coverage

82.4Average contacts per company

11-50Median size (employees)

Sep 28, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

Email recency for this list is measured across the whole United States list rather than for Alexandria, so it is reported there. Company counts and contact totals on this page are exact for Alexandria, over 57 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 defense contractor cybersecurity 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 Alexandria, United States whose own description of what they do matches “defense contractor cybersecurity 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 defense contractor cybersecurity 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 defense contractor cybersecurity services, and records with no verified work email. Companies headquartered outside Alexandria 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, 725 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.

Defense contractor cybersecurity services by metro in the United States

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 defense contractor cybersecurity 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 defense contractor cybersecurity services are there based in Alexandria, United States?

RevenueBase identified 57 defense contractor cybersecurity services headquartered in Alexandria, 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?

Modern Technology Solutions, Inc. Mtsi, headquartered in Alexandria, tops this list with the largest team on record.

Which city in the United States has the most defense contractor cybersecurity services?

Washington leads the United States with 115 headquartered companies, followed by New York (81) and Arlington (76). Alexandria has 57.

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 725 verified decision-maker contacts tracked across these 57 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.