Company lists · Data refreshed October 2026
Top 25 Defense systems engineering firms worldwide
RevenueBase identified 2,215 company matches for defense systems engineering firms worldwide as of October 2026 and tracks 507,511 professional contacts across them, including 71,783 with verified work emails. The United States is the largest market and Huntsville the largest hub.
This list covers company matches for defense systems engineering firms worldwide, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed October 11, 2026. Country and city lists for defense systems engineering firms follow the table.
Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, 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.
The 25 largest defense systems engineering firms worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 76,380 contacts → | ||||
Exact match “We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 2 | 44,552 contacts → | ||||
Exact match “Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 3 | 41,648 contacts → | ||||
Exact match “At BAE Systems, we help our customers to stay a step ahead when protecting people and national security, critical infrastructure and vital information.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 4 | 34,132 contacts → | ||||
Exact match “Leonardo is a global security company that realises multi-domain technological capabilities in AD & S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 5 | 25,850 contacts → | ||||
Exact match “L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 6 | 20,226 contacts → | ||||
Exact match “Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 7 | 17,792 contacts → | ||||
Exact match “As a leading defence and security company, we offer solutions that range from the depths of the oceans to high in the sky, on land and in cyberspace, to keep people and society…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 8 | 14,325 contacts → | ||||
Exact match “ASELSAN is a company of Turkish Armed Forces Foundation, established in 1975 in order to meet the communication needs of the Turkish Armed Forces by national means.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 9 | 10,618 contacts → | ||||
Exact match “A world leader in missiles and missile systems.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 10 | 9,254 contacts → | ||||
Exact match “From Gulfstream business jets and combat vehicles to nuclear-powered submarines and communications systems, people around the world depend on our products and services for their…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 11 | 6,815 contacts → | ||||
Exact match “Anduril is not a traditional defense contractor.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 12 | 6,459 contacts → | ||||
Exact match “At Harris, our shared set of values, skills and experience have shaped some of the most remarkable communications technologies and cutting-edge innovations in the world.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 13 | 6,372 contacts → | ||||
Exact match “Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 14 | 5,397 contacts → | ||||
Exact match “We serve those who protect our freedom.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 15 | 4,903 contacts → | ||||
Exact match “Israel Aerospace Industries Ltd.(IAI) is Israel’s largest aerospace and defense company specializing in developing and manufacturing advanced, state-of-the-art systems for air…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 16 | 4,673 contacts → | ||||
Exact match “SNC is a trusted global leader in aerospace and national security.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 17 | 2,923 contacts → | ||||
Exact match “Boeing Defense, Space & Security is a division of The Boeing Company based in Arlington, Virginia.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 18 | 2,805 contacts → | ||||
Exact match “Applied Research Associates, Inc.(ARA) is the company that government and industry turn to for innovative technologies and solutions to problems that improve our safety, security…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 19 | 2,790 contacts → | ||||
Exact match “HENSOLDT is a leading company in the European defence industry with a global reach.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 20 | 2,712 contacts → | ||||
Exact match “At Kratos, we deliver affordable, disruptive technologies that enable real-world readiness for national security.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 21 | 2,508 contacts → | ||||
Exact match “KONGSBERG protects people and critical infrastructure – from deep sea to space.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 22 | 2,454 contacts → | ||||
Exact match “Aegis provides custom engineering and technology development services to a broad array of clients, including Fortune 100 companies, the U.S.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 23 | 2,246 contacts → | ||||
Exact match “Elbit Systems is a leading global defense technology company, delivering advanced solutions for a secure and safer world.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 24 | 2,218 contacts → | ||||
Exact match “Mercury Systems – Innovation that matters® Mercury Systems is a global leader in aerospace and defense electronics, providing breakthrough capabilities in signal and data…” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
| 25 | 2,088 contacts → | ||||
Exact match “Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded in the RevenueBase company graph · Oct 11, 2026 · View company records in RevenueBase | |||||
RevenueBase SmartSearch
Describe a niche business in your own words. RevenueBase SmartSearch compares the meaning of your description with company business descriptions compiled in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit.
This list uses Exact for “defense systems engineering firms”. Each Exact match badge shows membership in that saved search; it is not an individual similarity score or a service-quality rating. Recorded descriptions are shown where available.
Showing 25 of 2,215 defense systems engineering firms worldwide
See the full list, filter by size, metro and specialty, and access 71,783 tracked professional contacts with verified work emails. Direct dials are available where recorded.
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Defense systems engineering firms worldwide at a glance
As of Oct 11, 2026Companies by employee count
Email recency is reported on each country list linked below.
How this list was built
The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.
- Source
- The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
- Coverage
- Every country. Country and city lists for defense systems engineering firms are linked below.
- What qualifies
- Company records worldwide whose business descriptions match “defense systems engineering firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
- RevenueBase SmartSearch
- Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
- Public preview
- The public preview omits records without a verified work email. Dataset totals and geographic summaries describe the full matched records before these preview filters.
- Match quality
- RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
- 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 displayed company carries at least one verified work email. RevenueBase tracks 71,783 professional contacts with verified work emails across the full matched dataset. 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 October 11, 2026. Lists refresh periodically as the graph is re-checked.
- Record context
- Company records and descriptions can change. Check the company's website for its current services and locations.
Defense systems engineering firms by location
14 lists · largest firstEvery Defense systems engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Defense systems engineering firms based in the United States966
- Defense systems engineering firms based in India163
- Defense systems engineering firms based in Türkiye135
- Defense systems engineering firms based in the United Kingdom106
- Defense systems engineering firms based in Australia69
- Defense systems engineering firms based in Italy40
- Defense systems engineering firms based in Israel39
- Defense systems engineering firms based in Canada30
- Defense systems engineering firms based in Spain25
Cities
- Defense systems engineering firms based in Huntsville, United States69
- Defense systems engineering firms based in Ankara, Türkiye53
- Defense systems engineering firms based in Bangalore, India52
- Defense systems engineering firms based in Arlington, United States27
- Defense systems engineering firms based in San Diego, United States25
Frequently asked
What is RevenueBase SmartSearch?
RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “defense systems engineering firms”; each Exact match badge shows search membership, not an individual similarity or quality score.
How many defense systems engineering firms are there worldwide?
RevenueBase identified 2,215 company matches for defense systems engineering firms worldwide as of October 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.
What is the largest company on this list?
Northrop Grumman tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.
Which country has the most defense systems engineering firms?
The United States leads with 966 companies, followed by India (163) and Türkiye (135). Every defense systems engineering firms list by country and city is linked on this page.
Which city has the most defense systems engineering firms?
Huntsville leads with 69 company records, followed by Ankara (53) and Bangalore (52).
How do I get contact information for these companies?
A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 71,783 professional contacts with verified work emails tracked across these 2,215 companies; direct dials are available where recorded.
How current is this list?
The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on October 11, 2026.
Ready to reach these companies? Verified emails and direct dials for all 2,215 defense systems engineering firms worldwide. Start with a free account, no credit card.
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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 SmartSearch, 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.
More company lists
Company intelligence · public preview
Top 25 defense systems engineering firms worldwide
Find companies in any niche.
Describe the businesses you want in your own words. RevenueBase SmartSearch matches company descriptions by meaning.
RevenueBase records 2,215 matching company records for defense systems engineering firms worldwide, with 507,511 tracked contacts and 71,783 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 defense systems engineering firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 |  Northrop Grummannorthropgrumman.comHQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 76,380 contacts → |
“We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 |  Raytheonrtx.comHQ: Arlington, VA, United StatesReported employees: 10001+ | Arlington, VA, United States | 10001+ | Exact match | 44,552 contacts → |
“Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 |  BAE Systemsbaesystems.comHQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 41,648 contacts → |
“At BAE Systems, we help our customers to stay a step ahead when protecting people and national security, critical infrastructure and vital information.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 |  Leonardoleonardo.comHQ: Roma, TürkiyeReported employees: 10001+ | Roma, Türkiye | 10001+ | Exact match | 34,132 contacts → |
“Leonardo is a global security company that realises multi-domain technological capabilities in AD & S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 |  L3harris Technologiesl3harris.comHQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 25,850 contacts → |
“L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 |  Parsons Corporationparsons.comHQ: Chantilly, VA, United StatesReported employees: 10001+ | Chantilly, VA, United States | 10001+ | Exact match | 20,226 contacts → |
“Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SAABsaab.com HQ: Stockholm, SwedenReported employees: 10001+ | Stockholm, Sweden | 10001+ | Exact match | 17,792 contacts → |
“As a leading defence and security company, we offer solutions that range from the depths of the oceans to high in the sky, on land and in cyberspace, to keep people and society…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 |  Aselsanaselsan.comHQ: Mehmet Akif Ersoy, TürkiyeReported employees: 10001+ | Mehmet Akif Ersoy, Türkiye | 10001+ | Exact match | 14,325 contacts → |
“ASELSAN is a company of Turkish Armed Forces Foundation, established in 1975 in order to meet the communication needs of the Turkish Armed Forces by national means.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 |  MBDAmbda-systems.comHQ: Stevenage, FranceReported employees: 10001+ | Stevenage, France | 10001+ | Exact match | 10,618 contacts → |
“A world leader in missiles and missile systems.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 |  General Dynamicsgeneraldynamics.comHQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 9,254 contacts → |
“From Gulfstream business jets and combat vehicles to nuclear-powered submarines and communications systems, people around the world depend on our products and services for their…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 |  Anduril Industriesanduril.comHQ: Orange County, GA, United StatesReported employees: 1,001-5,000 | Orange County, GA, United States | 1,001-5,000 | Exact match | 6,815 contacts → |
“Anduril is not a traditional defense contractor.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 |  Harris Corporationharris.comHQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 6,459 contacts → |
“At Harris, our shared set of values, skills and experience have shaped some of the most remarkable communications technologies and cutting-edge innovations in the world.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 |  Leonardo DRSleonardodrs.comHQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 6,372 contacts → |
“Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 |  HIIhii.comHQ: Newport News, VA, United StatesReported employees: 10001+ | Newport News, VA, United States | 10001+ | Exact match | 5,397 contacts → |
“We serve those who protect our freedom.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 |  IAIiai.co.ilHQ: Ben Gurion International Airport, IsraelReported employees: 10001+ | Ben Gurion International Airport, Israel | 10001+ | Exact match | 4,903 contacts → |
“Israel Aerospace Industries Ltd.(IAI) is Israel’s largest aerospace and defense company specializing in developing and manufacturing advanced, state-of-the-art systems for air…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 |  Sierra Nevada Corporationsncorp.comHQ: Sparks, NV, United StatesReported employees: 1,001-5,000 | Sparks, NV, United States | 1,001-5,000 | Exact match | 4,673 contacts → |
“SNC is a trusted global leader in aerospace and national security.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 |  Boeing Defense, Space & Securityboeing.comHQ: Wayne, PA, United StatesReported employees: Not recorded | Wayne, PA, United States | Not recorded | Exact match | 2,923 contacts → |
“Boeing Defense, Space & Security is a division of The Boeing Company based in Arlington, Virginia.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 |  ARAara.comHQ: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | Albuquerque, NM, United States | 1,001-5,000 | Exact match | 2,805 contacts → |
“Applied Research Associates, Inc.(ARA) is the company that government and industry turn to for innovative technologies and solutions to problems that improve our safety, security…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 |  Hensoldthensoldt.netHQ: Taufkirchen, GermanyReported employees: 5,001-10,000 | Taufkirchen, Germany | 5,001-10,000 | Exact match | 2,790 contacts → |
“HENSOLDT is a leading company in the European defence industry with a global reach.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 |  Kratos Defense And Security Solutionskratosdefense.comHQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 2,712 contacts → |
“At Kratos, we deliver affordable, disruptive technologies that enable real-world readiness for national security.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 |  Kongsbergkongsberg.comHQ: Kongsberg, NorwayReported employees: 10001+ | Kongsberg, Norway | 10001+ | Exact match | 2,508 contacts → |
“KONGSBERG protects people and critical infrastructure – from deep sea to space.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 |  AEGISaegisgrp.comHQ: Seattle, WA, United StatesReported employees: Not recorded | Seattle, WA, United States | Not recorded | Exact match | 2,454 contacts → |
“Aegis provides custom engineering and technology development services to a broad array of clients, including Fortune 100 companies, the U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 |  Elbit Systemselbitsystems.comHQ: Haifa, IsraelReported employees: 10001+ | Haifa, Israel | 10001+ | Exact match | 2,246 contacts → |
“Elbit Systems is a leading global defense technology company, delivering advanced solutions for a secure and safer world.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 |  Mercury Systemsmrcy.comHQ: Andover, MA, United StatesReported employees: 1,001-5,000 | Andover, MA, United States | 1,001-5,000 | Exact match | 2,218 contacts → |
“Mercury Systems – Innovation that matters® Mercury Systems is a global leader in aerospace and defense electronics, providing breakthrough capabilities in signal and data…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 |  Textron Systemstextronsystems.comHQ: Haslet, TX, United StatesReported employees: 1,001-5,000 | Haslet, TX, United States | 1,001-5,000 | Exact match | 2,088 contacts → |
“Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
Showing 25 of 2,215 company matches
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Defense systems engineering firms: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,212 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,215 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Defense systems engineering firms by location
14 lists · largest firstEvery Defense systems engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Defense systems engineering firms based in the United States966
- Defense systems engineering firms based in India163
- Defense systems engineering firms based in Türkiye135
- Defense systems engineering firms based in the United Kingdom106
- Defense systems engineering firms based in Australia69
- Defense systems engineering firms based in Italy40
- Defense systems engineering firms based in Israel39
- Defense systems engineering firms based in Canada30
- Defense systems engineering firms based in Spain25
Cities
- Defense systems engineering firms based in Huntsville, United States69
- Defense systems engineering firms based in Ankara, Türkiye53
- Defense systems engineering firms based in Bangalore, India52
- Defense systems engineering firms based in Arlington, United States27
- Defense systems engineering firms based in San Diego, United States25
Questions about this company list
What does Exact match mean for defense systems engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many defense systems engineering firms did RevenueBase find worldwide?
The saved snapshot records 2,215 matching company records, 507,511 tracked contacts and 71,783 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
Adapt this niche search and work with available contacts in RevenueBase.
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Cite this list
RevenueBase Data Team. Top 25 defense systems engineering firms worldwide. Snapshot: October 11, 2026. https://revenuebase.ai/companies/browse/defense-systems-engineering-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗
More company lists
Company intelligence · public preview
Top 25 defense systems engineering firms worldwide
RevenueBase records 2,215 matching company records for defense systems engineering firms worldwide, with 507,511 tracked contacts and 71,783 verified work emails.
This public preview shows 25 selected records ordered by tracked contacts. RevenueBase SmartSearch finds company descriptions that match by meaning at Exact. Snapshot: October 11, 2026.
RevenueBase compiles business descriptions for niche-company discovery; each row shows a recorded excerpt where available. Adapt this search to find the companies and contacts you want.
Top 25 defense systems engineering firms worldwide
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
| # | Company | Headquarters on record | Reported employees | RevenueBase SmartSearch | Tracked contacts |
|---|---|---|---|---|---|
| 1 | Northrop Grummannorthropgrumman.com HQ: Falls Church, VA, United StatesReported employees: 10001+ | Falls Church, VA, United States | 10001+ | Exact match | 76,380 contacts → |
“We are a close-knit community of big thinkers collaborating to keep the world safe.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 2 | Raytheonrtx.com HQ: Arlington, VA, United StatesReported employees: 10001+ | Arlington, VA, United States | 10001+ | Exact match | 44,552 contacts → |
“Raytheon, an RTX business, creates next-generation defense solutions that are smarter, faster and better than previously thought possible.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 3 | BAE Systemsbaesystems.com HQ: London, United KingdomReported employees: 10001+ | London, United Kingdom | 10001+ | Exact match | 41,648 contacts → |
“At BAE Systems, we help our customers to stay a step ahead when protecting people and national security, critical infrastructure and vital information.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 4 | Leonardoleonardo.com HQ: Roma, TürkiyeReported employees: 10001+ | Roma, Türkiye | 10001+ | Exact match | 34,132 contacts → |
“Leonardo is a global security company that realises multi-domain technological capabilities in AD & S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 5 | L3harris Technologiesl3harris.com HQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 25,850 contacts → |
“L3Harris Technologies is the Trusted Disruptor in the defense industry.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 6 | Parsons Corporationparsons.com HQ: Chantilly, VA, United StatesReported employees: 10001+ | Chantilly, VA, United States | 10001+ | Exact match | 20,226 contacts → |
“Founded in 1944, Parsons Corporation, a digitally enabled solutions provider, is focused on creating the future of the defense, intelligence, and critical infrastructure markets.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 7 | SAABsaab.com HQ: Stockholm, SwedenReported employees: 10001+ | Stockholm, Sweden | 10001+ | Exact match | 17,792 contacts → |
“As a leading defence and security company, we offer solutions that range from the depths of the oceans to high in the sky, on land and in cyberspace, to keep people and society…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 8 | Aselsanaselsan.com HQ: Mehmet Akif Ersoy, TürkiyeReported employees: 10001+ | Mehmet Akif Ersoy, Türkiye | 10001+ | Exact match | 14,325 contacts → |
“ASELSAN is a company of Turkish Armed Forces Foundation, established in 1975 in order to meet the communication needs of the Turkish Armed Forces by national means.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 9 | MBDAmbda-systems.com HQ: Stevenage, FranceReported employees: 10001+ | Stevenage, France | 10001+ | Exact match | 10,618 contacts → |
“A world leader in missiles and missile systems.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 10 | General Dynamicsgeneraldynamics.com HQ: Reston, VA, United StatesReported employees: 10001+ | Reston, VA, United States | 10001+ | Exact match | 9,254 contacts → |
“From Gulfstream business jets and combat vehicles to nuclear-powered submarines and communications systems, people around the world depend on our products and services for their…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 11 | Anduril Industriesanduril.com HQ: Orange County, GA, United StatesReported employees: 1,001-5,000 | Orange County, GA, United States | 1,001-5,000 | Exact match | 6,815 contacts → |
“Anduril is not a traditional defense contractor.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 12 | Harris Corporationharris.com HQ: Melbourne, FL, United StatesReported employees: 10001+ | Melbourne, FL, United States | 10001+ | Exact match | 6,459 contacts → |
“At Harris, our shared set of values, skills and experience have shaped some of the most remarkable communications technologies and cutting-edge innovations in the world.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 13 | Leonardo DRSleonardodrs.com HQ: Arlington, VA, United StatesReported employees: 5,001-10,000 | Arlington, VA, United States | 5,001-10,000 | Exact match | 6,372 contacts → |
“Leonardo DRS Inc.(Nasdaq: DRS) is at the forefront of developing transformative defense technologies using its proven agility and delivering innovative solutions for U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 14 | HIIhii.com HQ: Newport News, VA, United StatesReported employees: 10001+ | Newport News, VA, United States | 10001+ | Exact match | 5,397 contacts → |
“We serve those who protect our freedom.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 15 | IAIiai.co.il HQ: Ben Gurion International Airport, IsraelReported employees: 10001+ | Ben Gurion International Airport, Israel | 10001+ | Exact match | 4,903 contacts → |
“Israel Aerospace Industries Ltd.(IAI) is Israel’s largest aerospace and defense company specializing in developing and manufacturing advanced, state-of-the-art systems for air…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 16 | Sierra Nevada Corporationsncorp.com HQ: Sparks, NV, United StatesReported employees: 1,001-5,000 | Sparks, NV, United States | 1,001-5,000 | Exact match | 4,673 contacts → |
“SNC is a trusted global leader in aerospace and national security.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 17 | Boeing Defense, Space & Securityboeing.com HQ: Wayne, PA, United StatesReported employees: Not recorded | Wayne, PA, United States | Not recorded | Exact match | 2,923 contacts → |
“Boeing Defense, Space & Security is a division of The Boeing Company based in Arlington, Virginia.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 18 | ARAara.com HQ: Albuquerque, NM, United StatesReported employees: 1,001-5,000 | Albuquerque, NM, United States | 1,001-5,000 | Exact match | 2,805 contacts → |
“Applied Research Associates, Inc.(ARA) is the company that government and industry turn to for innovative technologies and solutions to problems that improve our safety, security…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 19 | Hensoldthensoldt.net HQ: Taufkirchen, GermanyReported employees: 5,001-10,000 | Taufkirchen, Germany | 5,001-10,000 | Exact match | 2,790 contacts → |
“HENSOLDT is a leading company in the European defence industry with a global reach.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 20 | Kratos Defense And Security Solutionskratosdefense.com HQ: San Diego, CA, United StatesReported employees: 1,001-5,000 | San Diego, CA, United States | 1,001-5,000 | Exact match | 2,712 contacts → |
“At Kratos, we deliver affordable, disruptive technologies that enable real-world readiness for national security.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 21 | Kongsbergkongsberg.com HQ: Kongsberg, NorwayReported employees: 10001+ | Kongsberg, Norway | 10001+ | Exact match | 2,508 contacts → |
“KONGSBERG protects people and critical infrastructure – from deep sea to space.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 22 | AEGISaegisgrp.com HQ: Seattle, WA, United StatesReported employees: Not recorded | Seattle, WA, United States | Not recorded | Exact match | 2,454 contacts → |
“Aegis provides custom engineering and technology development services to a broad array of clients, including Fortune 100 companies, the U.S.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 23 | Elbit Systemselbitsystems.com HQ: Haifa, IsraelReported employees: 10001+ | Haifa, Israel | 10001+ | Exact match | 2,246 contacts → |
“Elbit Systems is a leading global defense technology company, delivering advanced solutions for a secure and safer world.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 24 | Mercury Systemsmrcy.com HQ: Andover, MA, United StatesReported employees: 1,001-5,000 | Andover, MA, United States | 1,001-5,000 | Exact match | 2,218 contacts → |
“Mercury Systems – Innovation that matters® Mercury Systems is a global leader in aerospace and defense electronics, providing breakthrough capabilities in signal and data…” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
| 25 | Textron Systemstextronsystems.com HQ: Haslet, TX, United StatesReported employees: 1,001-5,000 | Haslet, TX, United States | 1,001-5,000 | Exact match | 2,088 contacts → |
“Textron Systems has been providing innovative solutions to the defense, homeland security and aerospace communities for more than 50 years.” Recorded description excerpt · October 11, 2026Open company data in RevenueBase ↗Free signup required. | |||||
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Defense systems engineering firms: dataset insights
October 11, 2026These summaries describe recorded coverage in this saved dataset. This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Reported company sizes
2,212 records in the displayed employee bands.
3 matching records are outside the displayed bands or do not have a displayed size. Bars show shares of the displayed bands.
Email recency for this list is measured across the whole country list rather than for Worldwide, so it is reported there. Company counts and contact totals on this page are exact for Worldwide, over 2,215 companies.
How this company list was built
Describe a niche in your own words: companies installing commercial solar, or manufacturers of sustainable packaging. RevenueBase SmartSearch finds companies whose compiled business descriptions match by meaning. This list is one saved example to adapt.
Where the company descriptions come from
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
RevenueBase SmartSearch matching settings
- Exact
- Closest fits to the business described.
- Similar
- Similar businesses with a wider range of fits.
- Related
- Related businesses in and around the category.
- Broad
- A broader set of businesses connected to the description.
RevenueBase SmartSearch · Exact match identifies inclusion in this search's closest semantic matching setting. It is not a per-company confidence score, a literal keyword match, or a quality endorsement.
Selection, ordering and scope
The public list shows selected company records with contact and verified-email coverage. Reported employee bands provide separate company-size context.
This page is derived from saved source records; per-contact mobile coverage and email-recency results are not established by this snapshot.
Recorded company descriptions support research; check company websites for current services. The selected preview is ordered by tracked contacts and is not a list of the best service providers.
Snapshot: October 11, 2026.
RevenueBase is a B2B data infrastructure company. Its September 3, 2026 published methodology describes a graph of 60 million companies and 398.9 million professional contacts; these platform figures differ from this page's totals. Published methodology ↗
Defense systems engineering firms by location
14 lists · largest firstEvery Defense systems engineering firms list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.
Countries
- Defense systems engineering firms based in the United States966
- Defense systems engineering firms based in India163
- Defense systems engineering firms based in Türkiye135
- Defense systems engineering firms based in the United Kingdom106
- Defense systems engineering firms based in Australia69
- Defense systems engineering firms based in Italy40
- Defense systems engineering firms based in Israel39
- Defense systems engineering firms based in Canada30
- Defense systems engineering firms based in Spain25
Cities
- Defense systems engineering firms based in Huntsville, United States69
- Defense systems engineering firms based in Ankara, Türkiye53
- Defense systems engineering firms based in Bangalore, India52
- Defense systems engineering firms based in Arlington, United States27
- Defense systems engineering firms based in San Diego, United States25
Questions about this company list
What does Exact match mean for defense systems engineering firms?
The separate RevenueBase SmartSearch column identifies inclusion at the closest semantic matching preset. It is not a literal keyword match, a per-company confidence score or a quality endorsement. Changing the search form opens a new search in RevenueBase; it does not reclassify these saved rows.
How many defense systems engineering firms did RevenueBase find worldwide?
The saved snapshot records 2,215 matching company records, 507,511 tracked contacts and 71,783 verified emails. The public preview displays 25 selected records.
Where do the company descriptions come from?
RevenueBase compiles company information from public sources, including company websites and public professional profiles such as LinkedIn, alongside information supplied by companies. The short recorded excerpt shown here is separate from the complete business description used for matching; individual source URLs and collection dates are not provided in this public snapshot.
How are the public companies ordered?
The selected public records are ordered by contacts tracked in RevenueBase, highest first. Contact coverage is a prospecting measure, not an assessment of the company's services or quality.
How can I get contact information?
Select a company's contact count to open its filtered contacts in RevenueBase. Free signup is required and includes 500 credits and limited free results. Verified emails, direct dials and mobile numbers depend on available coverage.
How current is this list?
Snapshot: October 11, 2026. Review each company's website for current services and locations. A recorded business description does not establish that every company offers every service named in the search.
What do headquarters and employee bands mean?
These are recorded company-level fields, rather than a map of every branch or a count of specialists. Missing headquarters or employee bands are labeled; older records may show a location separately from recorded headquarters.
Build your next target company list
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Cite this list
RevenueBase Data Team. Top 25 defense systems engineering firms worldwide. Snapshot: October 11, 2026. https://revenuebase.ai/companies/browse/defense-systems-engineering-firms.
This is a selected public preview of saved company records, rather than an independently verified census. Open the source page ↗