Company lists · Data refreshed September 2026

Top 23 Defense technology software startups based in Chantilly, United States

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

Compiled by the RevenueBase Data Team Data refreshed Sep 10, 2026 36 companies tracked

RevenueBase identified 36 defense technology software startups headquartered in Chantilly, United States as of September 2026 and tracks 22,423 professional contacts across them, including 6,348 with verified work emails and 6,887 with mobile numbers. Huntsville is the largest hub.

This list covers defense technology software startups 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 10, 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 10, 2026 86% judged on-target in blind review

36Companies

22,423Contacts tracked

6,348Verified emails

6,887Mobile numbers

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The 23 largest defense technology software startups based in Chantilly, United States

Ranked by team size

Top 23 of 36 defense technology software startups based in Chantilly, United States, ranked by team size, largest first. Data refreshed Sep 10, 2026. RevenueBase Smart Search rates how each company's information relates to defense technology software startups: 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 10, 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 10, 2026
2	Arcfield	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
3	Loginsoft	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
4	Legal Interpreting Services, INC DBA LIS Solutions	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	201-500	212 contacts →
	Partial evidence “Effective strategies for successful solutions With the right mix of specialists, we provide cyber security, language, intelligence, and information technology solutions for both…” Source: RevenueBase Database · checked Sep 10, 2026
5	Anavation LLC	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
6	Inactive	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	n/a	142 contacts →
	Indirect evidence “N/A inactive account.” Source: RevenueBase Database · checked Sep 10, 2026
7	Integrity Applications Incorporated	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
8	I-Link Solutions	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	51-200	103 contacts →
	Indirect evidence “i-Link Solutions, Inc.” Source: RevenueBase Database · checked Sep 10, 2026
9	Ns2 Mission	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
10	Ogsystems	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
11	Caci IDT	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	52 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 10, 2026
12	Altron, INC	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
13	Cape FOX Federal Integrators A Cape FOX Company	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
14	Millennial Software	Strong evidence	Chantilly, VA, United StatesHQ checked Sep 10, 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 10, 2026
15	Onyx Government Services	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	25 contacts →
	Indirect evidence “Onyx Government Services, a Service-Disabled Veteran-Owned Small Business (SDVOSB), is headquartered in Chantilly, Virginia, with an additional office in Huntsville, Alabama.” Source: RevenueBase Database · checked Sep 10, 2026
16	Government Technical Services Corporation	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	1-10	23 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 10, 2026
17	Flipside Innovation	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	20 contacts →
	Partial evidence “At Flipside Innovation, we design and build software people love to use-especially in places where that hasn't always been the norm.” Source: RevenueBase Database · checked Sep 10, 2026
18	Blue Ridge Dynamics, INC	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	14 contacts →
	Partial evidence “Blue Ridge Dynamics is a software development and engineering services company centered on the commitment to deliver agile solutions that will ensure mission success for our…” Source: RevenueBase Database · checked Sep 10, 2026
19	Domenix	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	12 contacts →
	Partial evidence “Domenix is a team of dedicated and experienced defense industry professionals specializing in Department of Defense support by providing innovative, world-class information…” Source: RevenueBase Database · checked Sep 10, 2026
20	Data Intelligence Solutions LLC	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	8 contacts →
	Partial evidence “Data Intelligence Solutions LLC's mission is to create, deliver and grow practical technology driven solutions to the US Federal Government.” Source: RevenueBase Database · checked Sep 10, 2026
21	Newbrook Solutions, Inc. An Edgesource Company	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	11-50	8 contacts →
	Partial evidence “Our mission is to provide every customer with unparalleled solutions through the intelligent and appropriate use of information technology.” Source: RevenueBase Database · checked Sep 10, 2026
22	Phantom Forge	Indirect evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	1-10	6 contacts →
	Indirect evidence “Phantom Forge strives to advance our customers most critical missions through providing the highest caliber engineers.” Source: RevenueBase Database · checked Sep 10, 2026
23	Elambda Technologies INC	Partial evidence	Chantilly, VA, United StatesHQ checked Sep 10, 2026	1-10	2 contacts →
	Partial evidence “eLambda Technologies was founded in 2011 and has more than 25 years of expertise in the digital signal processing and architectural design space.” Source: RevenueBase Database · checked Sep 10, 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 software startups. 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 software startups.
Partial evidence: Its own public description names part of defense technology software startups, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name defense technology software startups. 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 23 of 36 defense technology software startups based in Chantilly, United States

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Defense technology software startups based in Chantilly, United States at a glance

As of Sep 10, 2026

28.3%Verified-email coverage

30.7%Mobile-number coverage

622.9Average contacts per company

11-50Median size (employees)

188.9%Largest-city concentration · Huntsville

Sep 10, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

1,001-5,000

10001+

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 12.0d

5,6870–30

55831–60

061–90

090–180

103180+

Company record updated

Median 73.0d

00–30

8,89231–60

8,68461–90

1,95890–180

2,889180+

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 software startups, 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 software startups”. 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 software startups), 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 software startups, 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, 6,348 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 10, 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 software startups by metro in the United States

Defense technology software startups in Huntsville68
Defense technology software startups in Reston47
Defense technology software startups in Washington46
Defense technology software startups in Columbia39
Defense technology software startups in Herndon37
Defense technology software startups in Arlington34
Defense technology software startups in Chantilly32
Defense technology software startups in San Diego31

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 software startups, 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 software startups are there based in Chantilly, United States?

RevenueBase identified 36 defense technology software startups 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 software startups?

Huntsville leads with 68 headquartered companies, followed by Reston (47) and Washington (46).

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 6,348 verified decision-maker contacts tracked across these 36 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 10, 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.