The best biosphere space startups

6 biosphere companies in the directory, ranked by disclosed funding ($660M raised between them), spanning 4 countries.

Keeping people and biology alive away from Earth. Life support and food production, space medicine, and the microgravity labs running the biological experiments that make longer missions survivable and, occasionally, produce something worth bringing home.

How many biosphere space startups are there in 2026?

Space Bandits tracks 6 biosphere companies, 6 of them active, with $660M in disclosed funding between them. Every funding figure carries a source.

Which biosphere startup has raised the most?

Axiom Space leads the biosphere sector with $660M in disclosed funding.

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