Company lists · Data verified August 2026

Top 25 Defense software companies based in the United States

Name: Defense software companies based in the United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 727 companies tracked

There are 727 defense software companies headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 220,046 professional contacts across them, including 15,207 with verified work emails and 105,148 with mobile numbers. Huntsville is the largest hub.

This list covers defense software companies headquartered in the United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Data current as of August 28, 2026.

727Companies

220,046Contacts tracked

15,207Verified emails

105,148Mobile numbers

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The 25 largest defense software companies based in the United States

Ranked by team size

Top 25 of 727 defense software companies based in the United States, ranked by team size, largest first. Data verified Aug 28, 2026. Click a count to unlock that company's people.
#	Company	HQ	Employees	Contacts	Verified emails
1	Northrop Grumman	San Diego, CA	10001+	75,000	1,247
2	Raytheon	Arlington, VA	10001+	42,746	1,421
3	L3harris Technologies	Melbourne, FL	10001+	24,757	932
4	BAE Systems, INC	Falls Church, VA	10001+	12,874	494
5	Anduril Industries	CA	1,001-5,000	2,686	1,957
6	Textron Systems	Sterling, VA	1,001-5,000	2,023	66
7	Scientific Research Corporation	South Atlanta, GA	1,001-5,000	1,914	2
8	Modern Technology Solutions, Inc. Mtsi	Las Vegas, NV	1,001-5,000	1,909	50
9	Thales Defense & Security, INC	Clarksburg, MD	1,001-5,000	1,520	1
10	Csra INC	Falls Church, VA	10001+	1,489	47
11	Qinetiq US	Reston, VA	1,001-5,000	1,388	17
12	CAE USA	Tampa, FL	1,001-5,000	1,288	473
13	VT Group VTG	California, MD	1,001-5,000	1,180	481
14	Agile Defense	Huntsville, AL	1,001-5,000	1,080	402
15	Radiance Technologies	Baton Rouge, LA	1,001-5,000	1,037	19
16	Tyto Athene, LLC	Amherst, VA	1,001-5,000	858	16
17	Precise Systems, INC	Oxnard, CA	1,001-5,000	735	16
18	Bluehalo, An AV Company	Chantilly, VA	1,001-5,000	658	16
19	TWO SIX Technologies	Austin, TX	501-1,000	648	435
20	Planned Systems International	Valparaiso, FL	1,001-5,000	608	316
21	Applied Research Solutions	Boston, MA	501-1,000	595	18
22	By Light Professional IT Services	Arlington, VA	1,001-5,000	562	280
23	Icr, INC	Louisville, CO	501-1,000	534	6
24	Peopletec, INC	Huntsville, AL	501-1,000	525	11
25	Butler Aerospace & Defense	Arlington, TX	1,001-5,000	464	5

Showing 25 of 727 defense software companies based in the United States

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Defense software companies based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HuntsvilleLargest hub · 44 HQs

105,148Contacts with mobile numbers

55Emails re-verified in last 30 days

Companies by employee count

1-10

220

11-50

215

51-200

177

201-500

501-1,000

1,001-5,000

10001+

Defense software companies by metro

Metro	Companies
Defense software companies in Huntsville	44
Defense software companies in Orlando	28
Defense software companies in San Diego	22
Defense software companies in Washington	19
Defense software companies in Columbia	19
Defense software companies in Herndon	18
Defense software companies in Arlington	17
Defense software companies in Reston	14

How this list was built

Source: The RevenueBase company graph: 21.3 million companies and 398.9 million professional contacts resolved from primary sources.
Inclusion: Companies whose own business descriptions match “defense software companies”, with match quality audited by blind human judging, and headquartered in the United States.
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: Contact records re-verify on a rolling cadence; 55 contacts on this list were re-verified in the last 30 days.
Refresh: Lists are refreshed periodically as the underlying company graph is re-verified. Last verified Aug 28, 2026.

Frequently asked

How many defense software companies are there based in the United States?

There are 727 defense software companies headquartered in the United States as of August 2026 (RevenueBase).

What is the largest company on this list?

Northrop Grumman, headquartered in San Diego, tops this list with the largest team on record.

Which city has the most defense software companies?

Huntsville leads with 44 headquartered companies, followed by Orlando (28) and San Diego (22).

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 15,207 verified decision-maker contacts tracked across these 727 companies.

How current is this list?

The list is refreshed periodically as the underlying company graph is re-verified. It was last verified on August 28, 2026.

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About this data

RevenueBase is a B2B contact data platform. Its company graph covers 21.3 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, the same data that powers RevenueBase's B2B data products and the free research portal.