Company lists · Data refreshed September 2026

Top 25 Spacetech companies worldwide

Name: Spacetech companies worldwide
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 19, 2026 1,662 companies tracked

RevenueBase identified 1,662 spacetech companies worldwide as of September 2026 and tracks 89,827 professional contacts across them, including 17,139 with verified work emails and 0 with mobile numbers. The United States is the largest market and London the largest hub.

This list covers spacetech companies worldwide, 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 19, 2026. Country and city lists for spacetech companies follow the table.

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 19, 2026 86% judged on-target in blind review

1,662Companies

89,827Contacts tracked

17,139Verified emails

0Mobile numbers

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The 25 largest spacetech companies worldwide

Ranked by team size

Top 25 of 1,662 spacetech companies worldwide, ranked by team size, largest first. Data refreshed Sep 19, 2026. RevenueBase Smart Search rates how each company's information relates to spacetech companies: 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.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Blue Origin	Indirect evidence	Kent, CO, United StatesHQ checked Sep 19, 2026	10001+	10,934 contacts →
	Indirect evidence “Blue Origin manufactures and operates rocket engines, reusable launch vehicles, lunar landers, and satellite systems.” Source: RevenueBase Database · checked Sep 19, 2026
2	Arianegroup	Indirect evidence	Les Mureaux, FranceHQ checked Sep 19, 2026	5,001-10,000	4,939 contacts →
	Indirect evidence “ArianeGroup is an industrial company delivering critical missions for the space and defence sectors.” Source: RevenueBase Database · checked Sep 19, 2026
3	MDA Space	Indirect evidence	Brampton, ON, CanadaHQ checked Sep 19, 2026	1,001-5,000	3,747 contacts →
	Indirect evidence “Building the space between proven and possible, MDA Space (TSX:MDA; NYSE:MDA) is a trusted mission partner to the global defence and space industry.” Source: RevenueBase Database · checked Sep 19, 2026
4	Orbital ATK	Indirect evidence	Dulles, VA, United StatesHQ checked Sep 19, 2026	10001+	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 19, 2026
5	Telespazio	Indirect evidence	Rome, ItalyHQ checked Sep 19, 2026	1,001-5,000	2,566 contacts →
	Indirect evidence “Telespazio works to bring Space closer to Earth, benefitting citizens, institutions and companies in a variety of sectors ranging from design and development of space systems to…” Source: RevenueBase Database · checked Sep 19, 2026
6	Sierra Space	Indirect evidence	Louisville, CO, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,459 contacts →
	Indirect evidence “Headquartered in Colorado, Sierra Space is a mission-proven Defense Tech company delivering satellite platforms, critical subsystems, reusable spaceplanes, hypersonic…” Source: RevenueBase Database · checked Sep 19, 2026
7	SSL	Indirect evidence	Palo Alto, CA, United StatesHQ checked Sep 19, 2026	1,001-5,000	1,171 contacts →
	Indirect 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 19, 2026
8	AVIO	Indirect evidence	Colleferro, ItalyHQ checked Sep 19, 2026	1,001-5,000	1,042 contacts →
	Indirect evidence “Avio is a leading company in space propulsion, based in Colleferro, near Rome, Italy.” Source: RevenueBase Database · checked Sep 19, 2026
9	OHB SE	Indirect evidence	Bremen, GermanyHQ checked Sep 19, 2026	1,001-5,000	1,013 contacts →
	Indirect evidence “OHB SE is a German space and technology group and one of the leading independent forces in the European space industry.” Source: RevenueBase Database · checked Sep 19, 2026
10	Virgin Galactic	Indirect evidence	Tustin, CA, United StatesHQ checked Sep 19, 2026	501-1,000	1,011 contacts →
	Indirect evidence “Virgin Galactic is an aerospace and space travel company, pioneering human-first spaceflight for private individuals, researchers, and governments with its advanced SpaceShips and…” Source: RevenueBase Database · checked Sep 19, 2026
11	Axiom Space	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	840 contacts →
	Indirect evidence “Axiom Space is a human space exploration company, building era-defining space infrastructure and delivering technology-driven solutions that will empower civilization to transcend…” Source: RevenueBase Database · checked Sep 19, 2026
12	Millennium Space Systems	Indirect evidence	El Segundo, CA, United StatesHQ checked Sep 19, 2026	501-1,000	826 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 19, 2026
13	Skyroot Aerospace	Indirect evidence	Hyderabad, IndiaHQ checked Sep 19, 2026	501-1,000	679 contacts →
	Indirect evidence “A new space age is emerging and the extraordinary opportunities in space depend on the transportation systems from Earth to Space.” Source: RevenueBase Database · checked Sep 19, 2026
14	Barrios Technology	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	501-1,000	581 contacts →
	Indirect evidence “Barrios Technology is an award-winning, woman-owned and operated small aerospace business.” Source: RevenueBase Database · checked Sep 19, 2026
15	Astranis Space Technologies	Indirect evidence	San Francisco, CA, United StatesHQ checked Sep 19, 2026	501-1,000	491 contacts →
	Indirect evidence “Astranis builds low-cost satellites for high orbits.” Source: RevenueBase Database · checked Sep 19, 2026
16	SPIRE	Indirect evidence	Vienna, VA, United StatesHQ checked Sep 19, 2026	201-500	487 contacts →
	Indirect evidence “Spire (NYSE: SPIR) is a global provider of space-based data, analytics and space services, offering unique datasets and powerful insights about Earth so that organizations can…” Source: RevenueBase Database · checked Sep 19, 2026
17	Astroscale	Indirect evidence	Sumida, JapanHQ checked Sep 19, 2026	501-1,000	452 contacts →
	Indirect evidence “Founded in 2013, Astroscale is the global leader in on-orbit servicing, dedicated to the secure and sustainable development of space.” Source: RevenueBase Database · checked Sep 19, 2026
18	Intuitive Machines	Indirect evidence	Houston, TX, United StatesHQ checked Sep 19, 2026	1,001-5,000	449 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 19, 2026
19	A.I. Solutions	Indirect evidence	Cape Canaveral, FL, United StatesHQ checked Sep 19, 2026	201-500	439 contacts →
	Indirect evidence “At a.i.” Source: RevenueBase Database · checked Sep 19, 2026
20	Terran Orbital Corporation	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 19, 2026	501-1,000	439 contacts →
	Indirect 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 19, 2026
21	TESAT	Indirect evidence	Backnang, GermanyHQ checked Sep 19, 2026	1,001-5,000	423 contacts →
	Indirect evidence “Data transmission via satellite is indispensable for sustainable development.” Source: RevenueBase Database · checked Sep 19, 2026
22	Surrey Satellite Technology LTD Sstl	Indirect evidence	Guildford, United KingdomHQ checked Sep 19, 2026	201-500	401 contacts →
	Indirect evidence “Surrey Satellite Technology Limited (SSTL) is at the forefront of space innovation delivering customisable complete mission solutions for Earth observation, science…” Source: RevenueBase Database · checked Sep 19, 2026
23	PLD Space	Indirect evidence	Elche, SpainHQ checked Sep 19, 2026	201-500	386 contacts →
	Indirect evidence “Hello World!” Source: RevenueBase Database · checked Sep 19, 2026
24	ERT	Indirect evidence	Greenbelt, MD, United StatesHQ checked Sep 19, 2026	501-1,000	386 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 19, 2026
25	D-Orbit	Indirect evidence	Fino Mornasco, ItalyHQ checked Sep 19, 2026	201-500	381 contacts →
	Indirect evidence “D-Orbit is a global market leader in the space logistics and transportation service industries with a track record of space-proven technologies and successful missions.” Source: RevenueBase Database · checked Sep 19, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: spacetech companies. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names spacetech companies.
Partial evidence: Its own public description names part of spacetech companies, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name spacetech companies. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 1,662 spacetech companies worldwide

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Spacetech companies worldwide at a glance

As of Sep 19, 2026

19.1%Verified-email coverage

54.0Average contacts per company

1-10Median size (employees)

3.9%Largest-city concentration · London

Sep 19, 2026Page data refreshed

Companies by employee count

1-10

906

11-50

460

51-200

179

201-500

501-1,000

1,001-5,000

5,001-10,000

10001+

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 spacetech companies, 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.
Coverage: 12 countries, largest first: the United States, India, the United Kingdom, Germany, Italy, France, Australia, Canada, Spain, Poland and 2 more. Country and city lists for spacetech companies are linked below.
What qualifies: Companies worldwide whose own description of what they do matches “spacetech companies”. 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 spacetech companies), 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 spacetech companies, and records with no verified work email.
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, 17,139 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 19, 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.

Spacetech companies by location

12 lists · largest first

Every Spacetech companies list RevenueBase publishes, by country and city. Counts are matching companies in each list as of its own refresh date.

Countries

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 spacetech companies, 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 spacetech companies are there worldwide?

RevenueBase identified 1,662 spacetech companies worldwide 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?

Blue Origin, headquartered in Denver, tops this list with the largest team on record.

Which country has the most spacetech companies?

The United States leads with 715 companies, followed by India (257) and the United Kingdom (168). Every spacetech companies list by country and city is linked on this page.

Which city has the most spacetech companies?

London leads with 65 headquartered companies, followed by Los Angeles (38) and Bangalore (30).

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 17,139 verified decision-maker contacts tracked across these 1,662 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 19, 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.