Company lists · Data refreshed September 2026

Top 25 Defense satellite contractors based in the United States

RevenueBase identified 275 defense satellite contractors headquartered in the United States as of September 2026 and tracks 130,247 professional contacts across them, including 13,732 with verified work emails. Herndon is the largest hub.

This list covers defense satellite contractors headquartered in the 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 16, 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 16, 2026 86% judged on-target in blind review
275Companies
130,247Contacts tracked
13,732Verified emails
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The 25 largest defense satellite contractors based in the United States

Ranked by team size
Top 25 of 275 defense satellite contractors based in the United States, ranked by team size, largest first. Data refreshed Sep 16, 2026. RevenueBase Smart Search rates how each company's information relates to defense satellite contractors: 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.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Indirect evidenceFalls Church, VA, United StatesHQ checked Sep 16, 202610001+74,984 contacts →

Indirect evidence

“We are a close-knit community of big thinkers collaborating to keep the world safe.”

Source: RevenueBase Database · checked Sep 16, 2026
2Partial evidenceChantilly, VA, United StatesHQ checked Sep 16, 202610001+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 16, 2026
3Indirect evidenceCarlsbad, CA, United StatesHQ checked Sep 16, 20265,001-10,0006,296 contacts →

Indirect evidence

“At Viasat, we go above and beyond.”

Source: RevenueBase Database · checked Sep 16, 2026
4Indirect evidenceDulles, VA, United StatesHQ checked Sep 16, 202610001+3,399 contacts →

Indirect evidence

“Orbital ATK is built on the strong heritage of two great companies, Orbital Sciences Corporation and ATK, with a history of collaboration providing reliable, affordable and…”

Source: RevenueBase Database · checked Sep 16, 2026
5Indirect evidenceSan Diego, CA, United StatesHQ checked Sep 16, 20261,001-5,0002,559 contacts →

Indirect evidence

“At Kratos, we deliver affordable, disruptive technologies that enable real-world readiness for national security.”

Source: RevenueBase Database · checked Sep 16, 2026
6Indirect evidencePlano, TX, United StatesHQ checked Sep 16, 20261,001-5,0001,575 contacts →

Indirect evidence

“Communications & Power Industries (CPI) is a world leader in large aperture antennas, components and systems, manufacturing advanced high-power and high-frequency technologies and…”

Source: RevenueBase Database · checked Sep 16, 2026
7Partial evidenceClarksburg, MD, United StatesHQ checked Sep 16, 20261,001-5,0001,527 contacts →

Partial evidence

“Thales Defense & Security, Inc.(TDSI) Headquartered in Clarksburg, MD, Thales Defense & Security, Inc.(TDSI) is a U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
8Indirect evidenceMclean, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,435 contacts →

Indirect evidence

“At SES, we believe that space has the power to make a difference.”

Source: RevenueBase Database · checked Sep 16, 2026
9Partial evidencePalo Alto, CA, United StatesHQ checked Sep 16, 20261,001-5,0001,171 contacts →

Partial evidence

“SSL, based in Palo Alto, California, is a leading provider of advanced spacecraft systems, with broad expertise to support commercial and government satellite operators and…”

Source: RevenueBase Database · checked Sep 16, 2026
10Indirect evidenceDulles, VA, United StatesHQ checked Sep 16, 20261,001-5,0001,054 contacts →

Indirect evidence

“Orbital Sciences is now Orbital ATK!”

Source: RevenueBase Database · checked Sep 16, 2026
11Indirect evidenceEl Segundo, CA, United StatesHQ checked Sep 16, 2026501-1,000826 contacts →

Indirect evidence

“From missile warning to advanced national security space missions, Millennium rapidly delivers affordable prototype and constellation solutions across orbits.”

Source: RevenueBase Database · checked Sep 16, 2026
12Indirect evidenceChandler, AZ, United StatesHQ checked Sep 16, 20261,001-5,000817 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 16, 2026
13Indirect evidenceChantilly, VA, United StatesHQ checked Sep 16, 20261,001-5,000798 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 16, 2026
14Partial evidenceHerndon, VA, United StatesHQ checked Sep 16, 2026501-1,000629 contacts →

Partial evidence

“ST Engineering iDirect is a global leader in satellite communications (satcom) providing technology and solutions that enable its customers to expand their business, differentiate…”

Source: RevenueBase Database · checked Sep 16, 2026
15Indirect evidenceFairview, PA, United StatesHQ checked Sep 16, 20261,001-5,000502 contacts →

Indirect evidence

“Spectrum Control is a different kind of RF company.”

Source: RevenueBase Database · checked Sep 16, 2026
16Indirect evidenceHouston, TX, United StatesHQ checked Sep 16, 20261,001-5,000449 contacts →

Indirect evidence

“Intuitive Machines is a leading space infrastructure company that builds spacecraft, connects networks, and operates infrastructure-as-a-service for commercial, civil, and…”

Source: RevenueBase Database · checked Sep 16, 2026
17Indirect evidenceNY, United StatesHQ checked Sep 16, 2026n/a440 contacts →

Indirect evidence

“TSC Recruiting and Talent Search”

Source: RevenueBase Database · checked Sep 16, 2026
18Strong evidenceIrvine, CA, United StatesHQ checked Sep 16, 2026501-1,000439 contacts →

Strong evidence

“Terran Orbital is a leading manufacturer of small satellites primarily serving the United States and Allied aerospace and defense industries.”

Source: RevenueBase Database · checked Sep 16, 2026
19Indirect evidenceGreenbelt, MD, United StatesHQ checked Sep 16, 2026501-1,000386 contacts →

Indirect evidence

“At ERT, we have been providing high-value solutions and expertise to our partners at U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
20Indirect evidenceAustin, TX, United StatesHQ checked Sep 16, 2026501-1,000382 contacts →

Indirect evidence

“CesiumAstro builds and delivers space communications systems-at scale.”

Source: RevenueBase Database · checked Sep 16, 2026
21Indirect evidenceLafayette, CO, United StatesHQ checked Sep 16, 2026201-500369 contacts →

Indirect evidence

“Reliable.”

Source: RevenueBase Database · checked Sep 16, 2026
22Indirect evidencePrinceton, NJ, United StatesHQ checked Sep 16, 2026201-500358 contacts →

Indirect evidence

“SciTec, a Firefly Aerospace company, delivers advanced sensing and mission data processing systems that give U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
23Partial evidenceArlington, VA, United StatesHQ checked Sep 16, 2026201-500313 contacts →

Partial evidence

“Airbus US Space & Defense is a trusted U.S.”

Source: RevenueBase Database · checked Sep 16, 2026
24Indirect evidenceHerndon, VA, United StatesHQ checked Sep 16, 2026n/a312 contacts →

Indirect evidence

“Global solutions in space, warfighter support, and training and maritime operations.”

Source: RevenueBase Database · checked Sep 16, 2026
25Partial evidenceEnglewood, CO, United StatesHQ checked Sep 16, 2026201-500256 contacts →

Partial evidence

“True Anomaly is the only defense technology company focused exclusively on space defense.”

Source: RevenueBase Database · checked Sep 16, 2026

Showing 25 of 275 defense satellite contractors based in the United States

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Defense satellite contractors based in the United States at a glance

As of Sep 16, 2026
10.5%Verified-email coverage
473.6Average contacts per company
11-50Median size (employees)
3.6%Largest-city concentration · Herndon
Sep 16, 2026Page data refreshed

Companies by employee count

1-10
84
11-50
88
51-200
52
201-500
18
501-1,000
10
1,001-5,000
17
5,001-10,000
1
10001+
4

Email recency for this list is measured worldwide rather than for United States, so it is reported there. Company counts and contact totals on this page are exact for United States, over 275 companies.

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 satellite contractors, 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 the United States whose own description of what they do matches “defense satellite contractors”. 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 satellite contractors), 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 satellite contractors, and records with no verified work email. Companies headquartered outside United States 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, 13,732 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 16, 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.

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 satellite contractors, 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 satellite contractors are there based in the United States?

RevenueBase identified 275 defense satellite contractors headquartered in the 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?

Northrop Grumman, headquartered in Falls Church, tops this list with the largest team on record.

Which city has the most defense satellite contractors?

Herndon leads with 10 headquartered companies, followed by Colorado Springs (8) and Melbourne (7).

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 13,732 verified decision-maker contacts tracked across these 275 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 16, 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.