Company lists · Data refreshed September 2026

Top 25 Defense technology consulting companies based in Chantilly, United States

Name: Defense technology consulting companies based in Chantilly, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 16, 2026 59 companies tracked

RevenueBase identified 59 defense technology consulting companies headquartered in Chantilly, United States as of September 2026 and tracks 23,336 professional contacts across them, including 6,690 with verified work emails. Washington is the largest hub.

This list covers defense technology consulting companies headquartered in Chantilly, 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 16, 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 16, 2026 86% judged on-target in blind review

59Companies

23,336Contacts tracked

6,690Verified emails

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The 25 largest defense technology consulting companies based in Chantilly, United States

Ranked by team size

Top 25 of 59 defense technology consulting companies based in Chantilly, United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to defense technology consulting companies: 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	Parsons Corporation	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	10001+	19,456 contacts →
	Partial evidence “Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Source: RevenueBase Database · checked Sep 16, 2026
2	Arcfield	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	798 contacts →
	Indirect evidence “Arcfield was purpose-built to protect the nation and its allies through innovations in systems engineering and integration, space and mission launch assurance, cybersecurity and…” Source: RevenueBase Database · checked Sep 16, 2026
3	Vencore INC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	485 contacts →
	Indirect evidence “As of June 1, 2018, we are Perspecta.” Source: RevenueBase Database · checked Sep 16, 2026
4	Noblis ESI	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	272 contacts →
	Indirect evidence “Noblis ESI is part of the Noblis family of companies.” Source: RevenueBase Database · checked Sep 16, 2026
5	Loginsoft	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	220 contacts →
	Partial evidence “For over 20 years, leading companies in Telecom, Cybersecurity, Healthcare, Banking, New Media, and more have come to rely on Loginsoft as a trusted resource for technology talent.” Source: RevenueBase Database · checked Sep 16, 2026
6	Bluewater Federal Solutions	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	192 contacts →
	Indirect evidence “BlueWater Federal, a Tetra Tech company, is a business provider of Enterprise IT and Operational and Program Support to the Federal Government and its agencies including: •…” Source: RevenueBase Database · checked Sep 16, 2026
7	Anavation LLC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	181 contacts →
	Indirect evidence “AnaVation is a trusted partner that delivers high-value, cost-effective solutions to solve our customers’ most complex technical and analytical problems.” Source: RevenueBase Database · checked Sep 16, 2026
8	Tenica Global Solutions	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	143 contacts →
	Strong evidence “TENICA and Associates LLC is a leading provider of government services and consulting solutions in the areas of national defense and intelligence.” Source: RevenueBase Database · checked Sep 16, 2026
9	Sciolex Corporation	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	501-1,000	142 contacts →
	Indirect evidence “Sciolex Corporation was established in February 2006 to provide Program Management, System Engineering, Architecture Development, System Integration, and Operations Support to…” Source: RevenueBase Database · checked Sep 16, 2026
10	MBA Consulting Services, Inc. MBA CSI	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	125 contacts →
	Partial evidence “MBA Consulting Services, Inc (MBA CSi) creates innovative and transformative solutions that help government agencies optimize their technical systems, data, and mobility.” Source: RevenueBase Database · checked Sep 16, 2026
11	Integrity Applications Incorporated	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	1,001-5,000	123 contacts →
	Partial evidence “Centauri is a leading provider of high-end engineering, intelligence, cyber security, and advanced technology solutions that keep our nation safe and secure from today’s…” Source: RevenueBase Database · checked Sep 16, 2026
12	RED Gate Group	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	65 contacts →
	Indirect evidence “The Red Gate Group empowers our clients to make impactful, sustainable change, and assists them in creating solutions for challenges confronting the Nation.” Source: RevenueBase Database · checked Sep 16, 2026
13	Ns2 Mission	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	61 contacts →
	Partial evidence “NS2 Mission’s expert engineers and intelligence analysts provide tailored solutions to our nation’s classified Department of Defense and Intelligence Community, employing emerging…” Source: RevenueBase Database · checked Sep 16, 2026
14	FCI Enterprises LLC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	60 contacts →
	Indirect evidence “FCI is an ISO 9001:2015 certified, small business providing quality systems engineering, cybersecurity and IT services, and innovative financial and management solutions.” Source: RevenueBase Database · checked Sep 16, 2026
15	Ogsystems	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	201-500	58 contacts →
	Indirect evidence “At OGSystems, we exist to challenge the status quo and create something better.” Source: RevenueBase Database · checked Sep 16, 2026
16	Elegant Enterprise-Wide Solutions, INC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	57 contacts →
	Indirect evidence “Elegant Enterprise-Wide Solutions, Inc is a disruptively innovative Government-focused IT professional service provider and high end specialized consultancy with decades of…” Source: RevenueBase Database · checked Sep 16, 2026
17	Apogee Integration LLC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	54 contacts →
	Indirect evidence “Applied Intelligence.” Source: RevenueBase Database · checked Sep 16, 2026
18	Caci IDT	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	11-50	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
19	Altron, INC	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	50 contacts →
	Strong evidence “ALTRON is a mission-focused engineering and technology solutions company with more than 25 years of experience supporting federal defense and civilian agencies.” Source: RevenueBase Database · checked Sep 16, 2026
20	Space Systems Integration LLC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	48 contacts →
	Indirect evidence “Space Systems Integration (SSI) is an engineering services company that supports government customers in the areas of aircraft and space systems design, acquisition, and…” Source: RevenueBase Database · checked Sep 16, 2026
21	Cape FOX Federal Integrators A Cape FOX Company	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	46 contacts →
	Indirect evidence “Cape Fox Federal Integrators, LLC (CFFI) was founded in February 2008 as an Alaska Native Corporation (ANC), and was certified as a Small Business Administration 8(a) in December…” Source: RevenueBase Database · checked Sep 16, 2026
22	Millennial Software	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	11-50	43 contacts →
	Strong evidence “Empowering Innovation in Defense & National Security Millennial Software is a trusted partner in defense technology, delivering cutting-edge software solutions, automation…” Source: RevenueBase Database · checked Sep 16, 2026
23	Welkin Associates, LTD	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	51-200	39 contacts →
	Indirect evidence “Founded in 1988, Welkin Associates, Ltd.” Source: RevenueBase Database · checked Sep 16, 2026
24	Government Technical Services Corporation	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	1-10	23 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 16, 2026
25	Elluminates Software	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 16, 2026	11-50	17 contacts →
	Indirect evidence “Elluminates Software, We Make Your Infrastructure Intelligent Build your next generation organization with advanced automation and AI tools, purpose-built for enterprise scale.” Source: RevenueBase Database · checked Sep 16, 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 technology consulting companies. 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 technology consulting companies.
Partial evidence: Its own public description names part of defense technology consulting companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense technology consulting companies. 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 59 defense technology consulting companies based in Chantilly, United States

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Defense technology consulting companies based in Chantilly, United States at a glance

As of Sep 16, 2026

28.7%Verified-email coverage

395.5Average contacts per company

11-50Median size (employees)

272.9%Largest-city concentration · Washington

Sep 16, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

1,001-5,000

10001+

Email recency for this list is measured across the whole United States list rather than for Chantilly, so it is reported there. Company counts and contact totals on this page are exact for Chantilly, over 59 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 technology consulting companies, 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 Chantilly, United States whose own description of what they do matches “defense technology consulting companies”. 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 technology consulting companies), 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 technology consulting companies, and records with no verified work email. Companies headquartered outside Chantilly 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, 6,690 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 16, 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 technology consulting companies 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 technology consulting companies, 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 technology consulting companies are there based in Chantilly, United States?

RevenueBase identified 59 defense technology consulting companies headquartered in Chantilly, 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?

Parsons Corporation, headquartered in Chantilly, tops this list with the largest team on record.

Which city has the most defense technology consulting companies?

Washington leads with 161 headquartered companies, followed by Huntsville (130) and Arlington (122).

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 6,690 verified decision-maker contacts tracked across these 59 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 16, 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.