Company lists · Data refreshed September 2026
Top 25 Space technology startups worldwide
RevenueBase identified 1,013 space technology startups worldwide as of September 2026 and tracks 65,479 professional contacts across them, including 16,609 with verified work emails. The United States is the largest market and London the largest hub.
This list covers space technology startups 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 22, 2026. Country and city lists for space technology startups 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.
The 25 largest space technology startups worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 7,484 contacts → | ||||
Strong evidence “Thales Alenia Space leverages a unique combination of skills, technological expertise, and industrial capabilities to deliver innovative solutions for telecommunications…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 2 | 4,939 contacts → | ||||
Partial evidence “ArianeGroup is an industrial company delivering critical missions for the space and defence sectors.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 3 | 3,747 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 5 | 2,733 contacts → | ||||
Partial evidence “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…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 6 | 2,566 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 7 | 1,459 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 8 | 1,307 contacts → | ||||
Strong evidence “Beyond Gravity (formerly RUAG Space), headquartered in Zurich, Switzerland, is the first space company to combine a startup mindset, agility, speed and innovation with decades of…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 10 | 1,042 contacts → | ||||
Partial evidence “Avio is a leading company in space propulsion, based in Colleferro, near Rome, Italy.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 11 | 1,013 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 12 | 840 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 13 | 715 contacts → | ||||
Indirect evidence “1998 yılında kurulan Alp Havacılık, teknolojisi, tecrübesi, özgün kabiliyetleri, dikey entegrasyonu, profesyonel yaklaşımları ile havacılık ve uzay sanayisinin gelişimine yön…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 14 | 581 contacts → | ||||
Partial evidence “Barrios Technology is an award-winning, woman-owned and operated small aerospace business.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 15 | 452 contacts → | ||||
Partial 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 22, 2026Thanks. The Data Team will review it. | |||||
| 16 | 439 contacts → | ||||
Indirect evidence “At a.i.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 17 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 18 | 422 contacts → | ||||
Indirect evidence “INTUITIVE® is a professional engineering and systems integration firm delivering rapid, missionfocused solutions for defense, government, and commercial customers.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 19 | 401 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 20 | 396 contacts → | ||||
Strong evidence “Voyager is a defense, national security and space technology company, pioneering transformative, mission-critical solutions that redefine possibilities for civil, commercial and…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 21 | 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 22, 2026Thanks. The Data Team will review it. | |||||
| 22 | 381 contacts → | ||||
Strong 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 22, 2026Thanks. The Data Team will review it. | |||||
| 23 | 373 contacts → | ||||
Partial evidence “Space42 is redefining the boundaries of SpaceTech, combining satellite communications, geospatial analytics, and AI to deliver transformative solutions from space.” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 24 | 372 contacts → | ||||
Strong evidence “Aegis Aerospace (pronounced ējis) is a woman-owned space and technology company that provides turn-key solutions to government and commercial customers in the space and defense…” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
| 25 | 372 contacts → | ||||
Indirect evidence “Not existent” Source: RevenueBase Database · checked Sep 22, 2026Thanks. The Data Team will review it. | |||||
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: space technology startups. 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 space technology startups.
- Partial evidence
- Its own public description names part of space technology startups, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name space technology startups. 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 1,013 space technology startups worldwide
See the full list, filter by size, metro and specialty, and get verified emails and direct dials for all 16,609 reachable decision-makers.
Free signup · no credit card
Space technology startups worldwide at a glance
As of Sep 22, 2026Companies by employee count
Email recency is reported on each country list linked below.
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 space technology startups, 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
- Every country. Country and city lists for space technology startups are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “space technology startups”. 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 space technology startups), 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 space technology startups, 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, 16,609 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 22, 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.
Space technology startups by location
4 lists · largest firstEvery Space technology startups 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 space technology startups, 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 space technology startups are there worldwide?
RevenueBase identified 1,013 space technology startups 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?
Thales Alenia Space, headquartered in Worldwide, tops this list with the largest team on record.
Which country has the most space technology startups?
The United States leads with 293 companies, followed by India (114) and the United Kingdom (56). Every space technology startups list by country and city is linked on this page.
Which city has the most space technology startups?
London leads with 26 headquartered companies, followed by Houston (12) and Los Angeles (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 16,609 verified decision-maker contacts tracked across these 1,013 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 22, 2026.
Ready to reach these companies? Verified emails and direct dials for all 1,013 space technology startups worldwide. Start with a free account, no credit card.
Download this list →Related lists
Browse the directory
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.