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Company lists · Data verified August 2026

Top 25 Defense technology software startups based in the United States

Compiled by the RevenueBase Data Team Verified Aug 28, 2026 1,375 companies tracked

There are 1,375 defense technology software startups headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 333,618 professional contacts across them, including 28,094 with verified work emails and 161,916 with mobile numbers. Huntsville is the largest hub.

This list covers defense technology software startups 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.

1,375Companies
333,618Contacts tracked
28,094Verified emails
161,916Mobile numbers
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The 25 largest defense technology software startups based in the United States

Ranked by team size
Top 25 of 1,375 defense technology software startups 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.
#CompanyHQEmployeesContactsVerified emails
1Northrop GrummanSan Diego, CA10001+75,0001,247
2RaytheonArlington, VA10001+42,7461,421
3Booz Allen HamiltonMclean, VA10001+34,2231
4L3harris TechnologiesMelbourne, FL10001+24,757932
5General Dynamics Information TechnologyFalls Church, VA10001+24,019675
6BAE Systems, INCFalls Church, VA10001+12,874494
7PeratonSan Diego, CA10001+10,741197
8MantechHerndon, VA5,001-10,0009,7563,116
9Leonardo DRSArlington, VA5,001-10,0005,94738
10Asrc FederalReston, VA5,001-10,0004,5242,934
11Systems Planning & AnalysisAlexandria, VA1,001-5,0002,08267
12Scientific Research CorporationSouth Atlanta, GA1,001-5,0001,9142
13Modern Technology Solutions, Inc. MtsiLas Vegas, NV1,001-5,0001,90950
14American SystemsMclean, VA1,001-5,0001,899694
15Dynetics, INCHuntsville, AL10001+1,53341
16Qinetiq USReston, VA1,001-5,0001,38817
17CAE USATampa, FL1,001-5,0001,288473
18VT Group VTGCalifornia, MD1,001-5,0001,180481
19Agile DefenseHuntsville, AL1,001-5,0001,080402
20Radiance TechnologiesBaton Rouge, LA1,001-5,0001,03719
21Tyto Athene, LLCAmherst, VA1,001-5,00085816
22ArcfieldChantilly, VA1,001-5,00079112
23Camber CorporationWarren, MI1,001-5,00076316
24Precise Systems, INCOxnard, CA1,001-5,00073516
25Bluehalo, An AV CompanyChantilly, VA1,001-5,00065816

Showing 25 of 1,375 defense technology software startups based in the United States

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Defense technology software startups based in the United States at a glance

As of Aug 28, 2026
11-50Median size (employees)
HuntsvilleLargest hub · 68 HQs
161,916Contacts with mobile numbers
76Emails re-verified in last 30 days

Companies by employee count

1-10
438
11-50
397
51-200
335
201-500
109
501-1,000
40
1,001-5,000
35
5,001-10,000
5
10001+
13

Defense technology software startups by metro

MetroCompanies
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

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 technology software startups”, 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; 76 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 technology software startups are there based in the United States?

There are 1,375 defense technology software startups 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 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 28,094 verified decision-maker contacts tracked across these 1,375 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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Related lists

Browse: Companies home · All United States lists · All Defense technology software startups lists · New lists

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.

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