NB Ventures — 2021 Investments
1 investments dated 2021 · listed companies and verified rows first · show all
Sironasirona.techin𝕏Apr 2021 · $3M
Sirona builds modular Direct Air Capture systems that use solid sorbents to remove CO2 from the air, then hands the captured CO2 to partners who inject it into basalt rock for permanent mineralized storage.
CleantechClimate TechHardwareBrussels, BE
Thoralf Gutierrez(Founder)in
Co-investorsAFI VenturesSatganaSyndicate OneXAnge8VCGlobal Founders Capital+3 more
Rows marked “SEC filing” are inferred from directors named on the company's SEC Form D — public regulatory data, not a portfolio list published by the firm.





