Company lists · Data refreshed September 2026

Top 25 Defense systems integration consultants based in Herndon, United States

Name: Defense systems integration consultants based in Herndon, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 14, 2026 40 companies tracked

RevenueBase identified 40 defense systems integration consultants headquartered in Herndon, United States as of September 2026 and tracks 12,411 professional contacts across them, including 3,415 with verified work emails. Washington is the largest hub.

This list covers defense systems integration consultants headquartered in Herndon, 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 14, 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 14, 2026 86% judged on-target in blind review

40Companies

12,411Contacts tracked

3,415Verified emails

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The 25 largest defense systems integration consultants based in Herndon, United States

Ranked by team size

Top 25 of 40 defense systems integration consultants based in Herndon, United States, ranked by team size, largest first. Data refreshed Sep 14, 2026. RevenueBase Smart Search rates how each company's information relates to defense systems integration consultants: 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	Mantech	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	5,001-10,000	9,697 contacts →
	Indirect evidence “MANTECH is more than a technology company.” Source: RevenueBase Database · checked Sep 14, 2026
2	Linquest	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1,001-5,000	642 contacts →
	Indirect evidence “LinQuest delivers performance excellence across the Air, Land, Sea, Space, and Cyberspace domains.” Source: RevenueBase Database · checked Sep 14, 2026
3	LTS	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	356 contacts →
	Indirect evidence “From disaster response and automated healthcare kiosks to occupational health services and federal IT consulting, we operate at the intersection of mission-critical need and…” Source: RevenueBase Database · checked Sep 14, 2026
4	Sotera Defense Solutions, INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1,001-5,000	214 contacts →
	Partial evidence “Sotera Defense Solutions (Sotera) has joined KeyW Corporation.” Source: RevenueBase Database · checked Sep 14, 2026
5	EMW	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	127 contacts →
	Indirect evidence “EMW was founded in 1995 by engineers and managers who formerly held senior positions in well known telecommunications and information technology companies to pursue their vision…” Source: RevenueBase Database · checked Sep 14, 2026
6	Nextpoint Group	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	201-500	119 contacts →
	Indirect evidence “NextPoint Group is a mission enablement, technology focused and culture rich IT professional service provider.” Source: RevenueBase Database · checked Sep 14, 2026
7	Foxhole Technology	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	117 contacts →
	Partial evidence “Foxhole Technology is a thought-leading technology firm offering a robust suite of cybersecurity, software development, systems engineering, and test & evaluation solutions for…” Source: RevenueBase Database · checked Sep 14, 2026
8	Alku Government Solutions	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	102 contacts →
	Partial evidence “ALKU Government Solutions is a National Security Defense Contractor serving the defense, energy, homeland security and intelligence communities.” Source: RevenueBase Database · checked Sep 14, 2026
9	Indigo IT LLC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	101 contacts →
	Indirect evidence “Founded in 2001, Indigo IT is an award winning information technology consulting and services company.” Source: RevenueBase Database · checked Sep 14, 2026
10	Blackhorse Solutions	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	97 contacts →
	Indirect evidence “BlackHorse Solutions, Inc.” Source: RevenueBase Database · checked Sep 14, 2026
11	Reston Consulting Group, INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	65 contacts →
	Partial evidence “Network Design * Engineering * Integration * Operations * Security RCG has more than 35 years' experience supporting some of the world's largest and most highly visible IT…” Source: RevenueBase Database · checked Sep 14, 2026
12	Integrated Security Technologies, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	61 contacts →
	Indirect evidence “Integrated Security Technologies designs, integrates, installs and maintains comprehensive solutions for the most complex and important IT, electronic, physical and cyber security…” Source: RevenueBase Database · checked Sep 14, 2026
13	Chameleon Consulting Group LLC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	59 contacts →
	Indirect evidence “Chameleon Consulting Group, LLC was founded by a small group of professionals with extensive experience in cyber operations, software engineering, data analysis, and physical…” Source: RevenueBase Database · checked Sep 14, 2026
14	Exatech Solutions, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	29 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
15	Roka Security, LLC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	27 contacts →
	Indirect evidence “Roka Security, LLC is a computer security firm located in the Washington D.C.” Source: RevenueBase Database · checked Sep 14, 2026
16	IP Network Solutions	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	26 contacts →
	Strong evidence “At IPNS, we work exclusively in the Federal marketplace, providing agencies in the Civilian, Defense and Intelligence communities with advanced IT systems solutions and…” Source: RevenueBase Database · checked Sep 14, 2026
17	Athena Technology Group	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	21 contacts →
	Indirect evidence “Provides information and communications technology services to the military and government agencies.” Source: RevenueBase Database · checked Sep 14, 2026
18	Delex Systems, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	51-200	19 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 14, 2026
19	Modern Government Solutions MGS	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	9 contacts →
	Partial evidence “At Modern Government Solutions (MGS), we deliver mission-critical solutions that empower the Department of Defense, Intelligence Community, and federal agencies to achieve…” Source: RevenueBase Database · checked Sep 14, 2026
20	ARC Space Innovation	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	4 contacts →
	Strong evidence “Arc Space Innovation delivers high-impact engineering services, systems integration, and subject matter expertise supporting the Department of War, Intelligence Community, and…” Source: RevenueBase Database · checked Sep 14, 2026
21	Acelar, INC	Partial evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	3 contacts →
	Partial evidence “Acelar provides Enterprise-wide Information Technology and Consulting services to several DoD Agencies (Navy, Army, Defense Logistics Agency, Defense Security Cooperation Agency)…” Source: RevenueBase Database · checked Sep 14, 2026
22	Veloxxity	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	1-10	3 contacts →
	Indirect evidence “Veloxxity delivers tailored solutions that enable our clients to think and act strategically.” Source: RevenueBase Database · checked Sep 14, 2026
23	Phantom Engineering, INC	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	2 contacts →
	Indirect evidence “Phantom Engineering is a technical services consulting firm supporting customers in the federal government sector.” Source: RevenueBase Database · checked Sep 14, 2026
24	Westway Enterprises	Indirect evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	1 contacts →
	Indirect evidence “Westway Enterprises LLC is a transformational security company providing first of its kind security services to the U.S.” Source: RevenueBase Database · checked Sep 14, 2026
25	IIT	Strong evidence	Herndon, VA, United StatesHQ checked Sep 14, 2026	11-50	1 contacts →
	Strong evidence “Information & Infrastructure Technologies Corporation (IIT) is an American information security, technology services and defense consultancy founded in 1997.” Source: RevenueBase Database · checked Sep 14, 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 systems integration consultants. 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 systems integration consultants.
Partial evidence: Its own public description names part of defense systems integration consultants, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense systems integration consultants. 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 40 defense systems integration consultants based in Herndon, United States

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Defense systems integration consultants based in Herndon, United States at a glance

As of Sep 14, 2026

27.5%Verified-email coverage

310.3Average contacts per company

51-200Median size (employees)

182.5%Largest-city concentration · Washington

Sep 14, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

5,001-10,000

Email recency for this list is measured across the whole United States list rather than for Herndon, so it is reported there. Company counts and contact totals on this page are exact for Herndon, over 40 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 systems integration consultants, 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 Herndon, United States whose own description of what they do matches “defense systems integration consultants”. 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 systems integration consultants), 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 systems integration consultants, and records with no verified work email. Companies headquartered outside Herndon 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, 3,415 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 14, 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 systems integration consultants 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 systems integration consultants, 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 systems integration consultants are there based in Herndon, United States?

RevenueBase identified 40 defense systems integration consultants headquartered in Herndon, 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?

Mantech, headquartered in Herndon, tops this list with the largest team on record.

Which city has the most defense systems integration consultants?

Washington leads with 73 headquartered companies, followed by San Diego (57) and Huntsville (53).

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 3,415 verified decision-maker contacts tracked across these 40 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 14, 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.