Cohorts of 2021

Companies whose accelerator cohort started in 2021. 1,685 companies.

CompanyClusterProgramStatusLast signal
Alkali Labs

Unlocking $12B/yr of low-concentration lithium brines in the US

Climate and energylithium extraction from brinesSOSVSOSV IndieBio SF 14Activechecked 2026-08-23
Carbonade

Sustainable aviation fuel with single step carbon capture and utilization

Climate and energysustainable aviation fuel productionSOSVSOSV IndieBio SF 14Site unreachablechecked 2026-08-17
Cereswaves

World's first "electrofertilzer" -- boosting crop and animal growth and health

Climate and energyelectrofertilizer for agricultureSOSVSOSV IndieBio SF 14Activechecked 2026-08-23
Innatrix

Sustainable and Safe Solutions to Replace Agrochemicals

Climate and energysustainable agriculture chemicalsSOSVSOSV IndieBio NY 04Activechecked 2026-08-23
Lillianah Technologies

Revitalizing ocean dead zones while sequestering carbon

Climate and energyOcean carbon sequestrationSOSVSOSV IndieBio SF 14Activechecked 2026-08-23
Nat4Bio

Mimicking Nature to preserve our Food & Environment

Climate and energyagricultural biotech and sustainabilitySOSVSOSV IndieBio NY 04Activechecked 2026-08-23
Re-Fresh Global

Upcycling unsorted textile waste into trusted raw materials

Climate and energytextile waste upcycling materialsSOSVSOSV IndieBio SF 14Activechecked 2026-08-23
VIA Fuels

A shortcut to jet fuel -- scalable today.

Climate and energysustainable aviation fuel productionSOSVSOSV IndieBio SF 14Activechecked 2026-08-23
Bosque Foods

Whole muscle meat alternatives grown naturally from fungi

Climate and energysustainable food productionSOSVSOSV IndieBio NY 03Inactive2026-08-23
Ceragen

Probiotics for plants to increase crop yields

Climate and energyagricultural biotech for crop yieldsSOSVSOSV IndieBio NY 03Activechecked 2026-08-23
Drip AI

Hydropanel harvests

Climate and energyhydropanel water harvesting technologySOSVSOSV HAX 2021Activechecked 2026-08-23
Hoofprint Biome

Hoofprint Biome represents a new paradigm in solving methane emissions from cattle.

Climate and energylivestock methane emissions reductionSOSVSOSV IndieBio SF 13Activechecked 2026-08-23
Infinite Elements

Bio-mining platform to refine and recycle rare earth elements

Climate and energyrare earth element recyclingSOSVSOSV IndieBio SF 13Activechecked 2026-08-23
Ingrediome

Real Meat and Seafood made from CO2

Climate and energyalternative protein from CO2SOSVSOSV IndieBio SF 13Activechecked 2026-08-23
Kyomei

Transforming meat protein production with plants

Climate and energysustainable protein manufacturingSOSVSOSV IndieBio NY 03Activechecked 2026-08-23
MAA’VA

Regenerating the built environment through circular materials

Climate and energyregenerative building materialsSOSVSOSV IndieBio SF 13Activechecked 2026-08-23
Minus Materials

Bio-renewable carbon-negative limestone for decarbonization of portland cement

Climate and energycarbon-negative building materialsSOSVSOSV IndieBio SF 13Site unreachablechecked 2026-08-17
Nitrofix

Emissions-free ammonia available on-site

Climate and energySustainable ammonia productionSOSVSOSV IndieBio SF 13Activechecked 2026-08-23
TomTex

Designing the future of sustainable biomaterial

Climate and energySustainable biomaterial developmentSOSVSOSV IndieBio NY 03Active, new domain2026-08-23
west~bourne

Carbon-neutral provisions made exclusively from regenerative farming

Climate and energyregenerative agriculture supplySOSVSOSV IndieBio SF 13Activechecked 2026-08-23