Octavia Carbon
Updated: January 16, 2026
Founders: Duncan Kariuki, Martin Freimüller
Country: Kenya | Funding: $5M (+)
Founded: 2022
Website: https://octaviacarbon.com/
Octavia Carbon develops technologies for the direct capture of carbon dioxide from the atmosphere and it uses geothermal energy for this. About 48% of Kenya's energy is generated by geothermal power plants, which emit massive amounts of waste heat. The startup uses this heat to force filter media to release concentrated carbon dioxide. This process regenerates the filters for further use, producing a clean stream of captured carbon dioxide. Kenya's Rift Valley is rich in basalt rocks, which serve as natural, long-lasting storage facilities for CO₂. Carbon dioxide injected into these formations is mineralized into stable carbonate minerals. Octavia Carbon has already built a pilot DAC plant and geological storage facility.
Founded: 2022
Website: https://octaviacarbon.com/
Octavia Carbon develops technologies for the direct capture of carbon dioxide from the atmosphere and it uses geothermal energy for this. About 48% of Kenya's energy is generated by geothermal power plants, which emit massive amounts of waste heat. The startup uses this heat to force filter media to release concentrated carbon dioxide. This process regenerates the filters for further use, producing a clean stream of captured carbon dioxide. Kenya's Rift Valley is rich in basalt rocks, which serve as natural, long-lasting storage facilities for CO₂. Carbon dioxide injected into these formations is mineralized into stable carbonate minerals. Octavia Carbon has already built a pilot DAC plant and geological storage facility.
