Company lists · Data refreshed September 2026
Top 25 Space exploration companies worldwide
RevenueBase identified 222 space exploration companies worldwide as of September 2026 and tracks 81,179 professional contacts across them, including 6,312 with verified work emails and 0 with mobile numbers. The United States is the largest market and Boulder the largest hub.
This list covers space exploration 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 space exploration 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.
The 25 largest space exploration companies worldwide
Ranked by team size| # | Company | Contacts | |||
|---|---|---|---|---|---|
| 1 | 15,414 contacts → | ||||
Indirect evidence “SpaceX designs, manufactures and launches the world’s most advanced rockets and spacecraft.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 2 | 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, 2026Thanks. The Data Team will review it. | |||||
| 3 | 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, 2026Thanks. The Data Team will review it. | |||||
| 4 | 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, 2026Thanks. The Data Team will review it. | |||||
| 5 | 1,011 contacts → | ||||
Partial 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, 2026Thanks. The Data Team will review it. | |||||
| 6 | 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 19, 2026Thanks. The Data Team will review it. | |||||
| 7 | 581 contacts → | ||||
Indirect evidence “Barrios Technology is an award-winning, woman-owned and operated small aerospace business.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 8 | 541 contacts → | ||||
Indirect evidence “Science Systems and Applications, Inc.(SSAI) is a leading provider of science, engineering, and technology solutions for customers who seek new frontiers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 9 | 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, 2026Thanks. The Data Team will review it. | |||||
| 10 | 334 contacts → | ||||
Partial evidence “Redwire is a new leader in mission critical space solutions and high reliability components for next generation space systems and infrastructure.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 11 | 308 contacts → | ||||
Indirect evidence “Stratolaunch designs, manufactures, and launches aerospace vehicles and technologies to fulfill several important national needs, including the need for reliable, routine access…” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 12 | 236 contacts → | ||||
Indirect evidence “Cimarron is a global solutions company with a strategic partnering approach to satisfying customer-driven requirements.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 13 | 218 contacts → | ||||
Strong evidence “Astrobotic is at the forefront of advancing space exploration and technology development.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 14 | 213 contacts → | ||||
Indirect evidence “Founded in 1984, Omitron, Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 15 | 182 contacts → | ||||
Indirect evidence “Making previously impossible missions possible” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 16 | 162 contacts → | ||||
Partial evidence “Turion Space is building the infrastructure to secure and sustain the future of space.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 17 | 143 contacts → | ||||
Partial evidence “As an end-to-end space transportation company, Firefly Aerospace is on a mission to enable our world to launch, land, and operate in space – anywhere, anytime.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 18 | 127 contacts → | ||||
Indirect evidence “We are moving!” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 19 | 117 contacts → | ||||
Partial evidence “Founded in 2022, our company has evolved towards innovation in the space technology industry, driven by ambition and the constant pursuit of excellence.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 20 | 86 contacts → | ||||
Partial evidence “Bellatrix Aerospace is an Indian Space company specializing in new age technologies for in-space mobility.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 21 | 81 contacts → | ||||
Partial evidence “Welcome to Omspace Rocket and Exploration Pvt.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 22 | 59 contacts → | ||||
Partial evidence “Established in 1990, Malin Space Science Systems designs, builds, and operates space camera systems for government and commercial aerospace customers.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 23 | 59 contacts → | ||||
Indirect evidence “Momentus Inc.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 24 | 52 contacts → | ||||
Indirect evidence “Spaceflight is our passion.” Source: RevenueBase Database · checked Sep 19, 2026Thanks. The Data Team will review it. | |||||
| 25 | 52 contacts → | ||||
Partial evidence “At Katalyst Space Technologies, our goal is to fundamentally shake up how the satellite industry works.” Source: RevenueBase Database · checked Sep 19, 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 exploration 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 space exploration companies.
- Partial evidence
- Its own public description names part of space exploration companies, so it works in or next to the category without describing itself that way.
- Indirect evidence
- The description shown does not name space exploration 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 222 space exploration companies worldwide
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Space exploration companies worldwide at a glance
As of Sep 19, 2026Companies by employee count
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 exploration 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
- 2 countries, largest first: the United States, India. Country and city lists for space exploration companies are linked below.
- What qualifies
- Companies worldwide whose own description of what they do matches “space exploration 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 space exploration 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 space exploration 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, 6,312 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.
Space exploration companies by location
2 lists · largest firstEvery Space exploration 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 space exploration 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 space exploration companies are there worldwide?
RevenueBase identified 222 space exploration 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?
Spacex, headquartered in Hawthorne, tops this list with the largest team on record.
Which country has the most space exploration companies?
The United States leads with 172 companies, followed by India (50). Every space exploration companies list by country and city is linked on this page.
Which city has the most space exploration companies?
Boulder leads with 7 headquartered companies, followed by Houston (7) and Bengaluru (6).
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 6,312 verified decision-maker contacts tracked across these 222 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.