37 Best Space Colonization Startups to Watch in 2025

The Definitive Seedtable Ranking of Space Colonization Startups

We track 71,000+ companies and rank them dynamically using our Seedtable Score – a score that uses quantitative and qualitative data points to signal the momentum behind a company. We then monitor the list manually leveraging our expertise as founders and investors.

There are 37 start-ups with an aggregate funding of $3.5b. The average funding per company in this subset is $94.7m.

Last update to the database: Feb 18, 2025. See changelog.

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3

Funding Rounds

$250.0m

Money raised

Firefly Aerospace is an end-to-end space transportation company developing technology for launching, landing, and operating space missions.

1

Funding Rounds

$13.0m

Money raised

Blue Origin is an American, privately-funded, aerospace developer and manufacturer that is interested in lowering the cost of spaceflight in order to explore the solar system

Location:

Key people:

2

Funding Rounds

$161.5k

Money raised

Orian Span was a commercial space agency that aimed to become the first company to place luxury hotel in space.

Key people:

3

Funding Rounds

$127.8m

Money raised

Reaction Engines Ltd is a company working on hypersonic and space access propulsion.

4

Funding Rounds

$91.0m

Money raised

Skyroot Aerospace is a company developing space launch vehicles for cost-effective space access.

Location:

Key people:

8

Funding Rounds

$166.0m

Money raised

Axiom Space is a company that is primarily interested in providing human spaceflight services

Key people:

7

Funding Rounds

$72.5m

Money raised

Accion Systems is a company that provides in-space propulsion systems for satellites

4

Funding Rounds

$96.0m

Money raised

Varda Space is a space startup focused on manufacturing specialized products in space.

6

Funding Rounds

$1.3b

Money raised

Relativity Space is a company that develops the process of building and flying rockets.

2

Funding Rounds

$18.2m

Money raised

Xplore is a spacecraft development company focused on launching space missions to Mars, Venus, the Moon, and asteroids.

Key people:

5

Funding Rounds

$65.5m

Money raised

Moon Express is a privately-held American company that develops robotic spacecraft and is planning the first commercial voyage to the moon.

Key people:

7

Funding Rounds

$72.7m

Money raised

AxelSpace is a company that is developing technology for private microsatellites.

3

Funding Rounds

$33.4m

Money raised

Astro Digital is a company that provides global imaging and analysis from satellite imagery

2

Funding Rounds

$2.6m

Money raised

Kleos Space is a company that provides geo-locational intelligence data services

Location:

Key people:

3

Funding Rounds

$64.7m

Money raised

Gilmour Space Technologies is a company that develops hybrid launch vehicles and space rockets

Key people:

5

Funding Rounds

$243.4m

Money raised

Satellite launch, mission management services, and satellite imagery company.

Location:

Key people:

5

Funding Rounds

$19.2m

Money raised

XCOR Aerospace is an American private rocket engine and spaceflight development company

1

Funding Rounds

$169.0k

Money raised

SpaceFab.US is a Laguna Niguel, California-based designer and manufacturer of general access satellites for Earth observation and space telescope customers.

3

Funding Rounds

$3.4m

Money raised

Exos Aerospace Systems & Technologies is a company that is interested in conducting scientific research in space related industries

Key people:

4

Funding Rounds

$2.6m

Money raised

Commercial space company with a focus on satellite development, deployment, and commercial payload integration.

Key people:

1

Funding Rounds

$250.0k

Money raised

Mission Control Space Services is a company that develops spacecraft operations, onboard autonomy, artificial intelligence, space exploration, and robotics

Location:

Key people:

10

Funding Rounds

$172.8m

Money raised

Vector Launch is a company in Tucson, Arizona.

Key people:

8

Funding Rounds

$32.0m

Money raised

Leaf Space is a company offering ground segment services for microsatellites founded in 2014 by Jonata Puglia, Giovanni Pandolfi, Matteo Boiocchi and Michele Messina.

1

Funding Rounds

$1.6m

Money raised

Paragon Space Development Corporation is a company that looks to develop in-house engineering services

1

Funding Rounds

$2.6m

Money raised

Space Applications Services is a company that looks to provide systems for aerospace and security industries

8

Funding Rounds

$307.9m

Money raised

PLD Space is a manufacturer of reusable space launchers founded in 2011 by Raúl Verdú.

Location:

Key people:

2

Funding Rounds

$12.1m

Money raised

Lunar Outpost is a Colorado based aerospace technology company, currently focused on developing space resource technologies.

6

Funding Rounds

$143.7m

Money raised

Manufacturer of small and medium-sized rockets and orbital service provider.

Location:

Key people:

1

Funding Rounds

Trans Astronautica Corporation is a space company developing mining technologies for asteroids founded in 2015 by Dr. Joel Sercel.

1

Funding Rounds

$5.0m

Money raised

A company offering launch services capable of delivering small satellites into orbit

Key people:

4

Funding Rounds

$115.8m

Money raised

A company offering launch services for spacecraft and satellites.

1

Funding Rounds

$3.3m

Money raised

Mynaric is a company that is interested in building laser communications for aerospace communications and satellite constellations

4

Funding Rounds

$24.3m

Money raised

A company specializing in manufacturing space launch vehicles and rocket engines.

1

Funding Rounds

$150.0k

Money raised

Planetoid Mines Company is a company that looks to engineer excavation tools and robotic

2

Funding Rounds

$1.9m

Money raised

Alén Space is a company that provides end-to-end solutions based on nanosatellites from design to ma- nufacture (including hardware and software), launch management and operation in orbit.

3

Funding Rounds

$4.4m

Money raised

PD AeroSpace is a Japanese space tourism company.

1

Funding Rounds

ARCAspace is a company founded in 1999 by Dumitru Popescu .

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