At One Ventures III

At One Ventures, founded in 2020 by Tom Chi, Laurie Menoud, and Helen Lin in Menlo Park, California, is a climate tech venture capital firm dedicated to helping humanity become a net positive to nature by funding disruptive deep tech startups. The firm manages over $525 million across funds, including a $150 million debut fund closed in October 2021 and a $375 million second fund (At One Ventures II) closed in September 2023, with At One Ventures III launched in December 2025. Its team, with expertise in physics, engineering, materials science, finance, and operations from prior roles at Google X, BASF, and Mayfield, provides in-house support for talent, manufacturing, marketing, and scaling. The firm's **Triad** investment thesis targets early-stage (Seed and Series A) companies in sectors like food and agriculture, energy, buildings, logistics, and life sciences that deliver superior unit economics—cutting costs by over 3x industry margins—paired with strong environmental returns on air, water, soil, and biodiversity, beyond just carbon metrics. It emphasizes diverse founders (40% from underrepresented groups like BIPOC and women) and a global portfolio of 35 companies across North America, Europe, Africa, South America, and Israel, with examples including Dalan Animal Health's USDA-approved honeybee vaccine and Halo Car's remote-piloted EVs; 11 have achieved product sales. At One leads 90% of first placements through rigorous technical diligence and focuses on commercial displacement of unsustainable industries. Notable activities include backing transformative deep tech for restorative planetary impact, portfolio growth to enable manufacturing scale-up and superior economics, and LP partnerships with entities like GenZero, WWF, MacArthur Foundation, CalSTRS, and New Mexico State Investment Council. The firm continues expanding its platform team to aid founders in commercialization while maintaining a commitment to diverse thought for multifaceted climate solutions.

At One Ventures III (At One Ventures) invests at seed and Series A, focuses on climate, deeptech, energy, transportation, agriculture, food and agriculture, built environment, construction and packaging, backs founders in Global.

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