Loading organizations...
§ Venture Capital · San Francisco, CA, USA
Venture capital firm investing and growing early-stage deep tech and climate tech startups, focused on restoring planetary ecosystems.
At One Ventures is a San Francisco, California-based venture capital firm that invests in early-stage deep technology and climate technology startups focused on environmental sustainability and ecosystem restoration. The firm targets seed and Series A funding rounds across the advanced materials, synthetic biology, and clean energy sectors, typically writing initial checks between $1 million and $5 million. The organization manages over $500 million in total assets under management and maintains an active portfolio of more than 35 companies. In October 2023, the firm expanded its capital base by closing its second flagship fund with $375 million in total commitments. Notable portfolio investments include solar mobility manufacturer Aptera, de-extinction genetics company Colossal Biosciences, and sustainable packaging developer Cruz Foam. At One Ventures was founded in 2020 by Tom Chi, Laurie Menoud, and Helen Lin.
Key people at At One Ventures.
At One Ventures has more than 26 tracked investments across 25 companies. The latest tracked deal is $10.0M Seed in MightyFly in February 2026.
Key people at At One Ventures.
At One Ventures is a Silicon Valley-based venture capital firm founded in 2020 with a mission to back early-stage companies using disruptive deep tech to fundamentally reshape the unit economics of established industries—while dramatically reducing their environmental footprint. The firm’s investment philosophy centers on identifying technologies that not only outperform incumbent solutions but also catalyze a restorative relationship with nature, focusing on air, water, soil, and biodiversity. At One Ventures targets sectors such as sustainable energy, health tech, agtech, biotechnology, and climate tech, prioritizing startups that deliver both outsized financial returns and measurable environmental impact. Their active portfolio and hands-on support have positioned them as a key player in the deep tech and climate innovation ecosystem, helping founders scale breakthrough technologies from lab to market.
At One Ventures was founded in 2020 by Brian Steinberg, a co-founder of GoogleX, bringing together a team of seasoned operators and investors with deep expertise in technology, engineering, and finance. The firm’s roots trace back to the belief that only radical innovation—backed by rigorous technical diligence and commercialization know-how—can solve the world’s most pressing environmental challenges. Over the years, At One Ventures has evolved from a single fund into a multi-fund platform managing $525 million, expanding its reach across North America, Europe, and emerging markets. The firm’s early focus on deep tech and climate innovation was shaped by its founders’ firsthand experience in building and scaling transformative technologies at organizations like GoogleX, Yahoo, Microsoft, and SRI International.
At One Ventures is riding the wave of the deep tech and climate tech revolution, where breakthroughs in materials science, biotechnology, and sustainable manufacturing are converging to disrupt legacy industries. The timing is critical: as governments and corporations face mounting pressure to meet climate goals, there is a growing demand for technologies that can deliver both environmental and economic value. At One Ventures is uniquely positioned to identify and scale these innovations, leveraging its technical depth and global network to accelerate the transition to a net-positive economy. Their influence extends beyond funding—they shape industry standards, foster collaboration, and help founders navigate regulatory and commercial hurdles, making them a catalyst for systemic change in the tech ecosystem.
At One Ventures is poised to play an even greater role as deep tech and climate innovation move from the fringes to the mainstream. The firm’s focus on scalable, restorative technologies—backed by a world-class team and robust operating support—positions it to back the next generation of industry-defining companies. As climate urgency intensifies and capital flows into sustainable solutions, At One Ventures will likely expand its global footprint, deepen its sector expertise, and continue to set the bar for impact-driven venture capital. Their journey reflects a broader shift: the future of innovation isn’t just about disruption, but about regeneration—making humanity a net positive to nature.
