Nitricity

Nitricity is a Fremont, California climate-tech company turning air, water, renewable electricity and discarded almond shells into organic nitrogen fertilizer. Its flagship product, Ash Tea, replaces fossil-fuel-derived fertilizers with a regionally produced, OMRI- and CDFA-certified alternative that cuts emissions by more than 90%. Founded in 2018 by three Stanford PhDs, the company closed a $50M Series B in September 2025 and is building its first commercial plant in Delhi, California.