Company lists · Data verified August 2026

Top 25 Defense systems integrators based in the United States

Name: Defense systems integrators 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 598 companies tracked

There are 598 defense systems integrators headquartered in the United States (RevenueBase, August 2026). RevenueBase tracks 301,346 professional contacts across them, including 17,784 with verified work emails and 138,789 with mobile numbers. Huntsville is the largest hub.

This list covers defense systems integrators 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.

598Companies

301,346Contacts tracked

17,784Verified emails

138,789Mobile numbers

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The 25 largest defense systems integrators based in the United States

Ranked by team size

Top 25 of 598 defense systems integrators 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	Booz Allen Hamilton	Mclean, VA	10001+	34,223	1
4	L3harris Technologies	Melbourne, FL	10001+	24,757	932
5	BAE Systems, INC	Falls Church, VA	10001+	12,874	494
6	Harris Corporation	Colorado Springs, CO	10001+	6,276	186
7	Leonardo DRS	Arlington, VA	5,001-10,000	5,947	38
8	Convergint	Hoffman Estates, IL	10001+	5,729	3,252
9	Anduril Industries	Seattle, WA	1,001-5,000	3,905	2,163
10	Kratos Defense And Security Solutions	Englewood, CO	1,001-5,000	2,533	47
11	Mercury Systems	Upper Saddle River, NJ	1,001-5,000	2,152	54
12	Scientific Research Corporation	South Atlanta, GA	1,001-5,000	1,914	2
13	Modern Technology Solutions, Inc. Mtsi	Las Vegas, NV	1,001-5,000	1,909	50
14	AV	Moorpark, CA	1,001-5,000	1,894	218
15	Communications & Power Industries CPI	Irving, TX	1,001-5,000	1,569	30
16	Thales Defense & Security, INC	Clarksburg, MD	1,001-5,000	1,520	1
17	Precise Systems, INC	Oxnard, CA	1,001-5,000	735	16
18	Spectrum Control	Delmar, DE	1,001-5,000	502	19
19	SMS Data Products Group, INC	Mclean, VA	501-1,000	450	139
20	York Space Systems	Denver, CO	501-1,000	426	7
21	Innovative Defense Technologies IDT	Fall River, MA	201-500	386	12
22	Njvc-Llc	St. Louis, MO	201-500	358	15
23	Scitec	Huntsville, AL	201-500	354	2
24	Survice Engineering	Fort Walton Beach, FL	201-500	350	7
25	ITC Federal	Fairfax, VA	501-1,000	342	143

Showing 25 of 598 defense systems integrators based in the United States

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Defense systems integrators based in the United States at a glance

As of Aug 28, 2026

11-50Median size (employees)

HuntsvilleLargest hub · 17 HQs

138,789Contacts with mobile numbers

51Emails re-verified in last 30 days

Companies by employee count

1-10

172

11-50

208

51-200

118

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

Defense systems integrators by metro

Metro	Companies
Defense systems integrators in Huntsville	17
Defense systems integrators in Washington	14
Defense systems integrators in Tampa	12
Defense systems integrators in San Diego	11
Defense systems integrators in Arlington	10
Defense systems integrators in Austin	9
Defense systems integrators in Ashburn	9
Defense systems integrators in Melbourne	8

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 systems integrators”, 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; 51 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 systems integrators are there based in the United States?

There are 598 defense systems integrators 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 systems integrators?

Huntsville leads with 17 headquartered companies, followed by Washington (14) and Tampa (12).

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 17,784 verified decision-maker contacts tracked across these 598 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.