At One Ventures

At One Ventures is a San Francisco–based venture capital firm that backs early-stage companies using disruptive deep technologies to upend the unit economics of established industries while dramatically reducing their environmental footprint. It seeks companies that pursue a world where humanity is a net positive to nature and looks for regenerative business models with potential to be healthy, scalable, and durable. The firm targets sectors including energy, cleantech, climate tech, ag-tech, food tech, technology, consumer products and services, and both B2B and B2C markets, primarily at seed and Series A stages, with a focus on products and services that can transform industries and advance planetary health.

Meryl Breidbart

Associate

Tom Chi

Partner

Helen Lin

Partner

Laurie Menoud

Partner

Luke Zhan

Associate

Past deals in CleanTech

Simplifyber

Series A in 2025
Simplifyber develops biomaterial-based apparel and soft Goods using a proprietary additive manufacturing process that forms clothing and related items from cellulose-based materials. By eliminating sewing and traditional assembly lines, the company aims to transform the fashion supply chain toward sustainable, closed-loop production. The technology enables biodegradable garments, footwear, furniture, and accessories while reducing waste, carbon emissions, and water use associated with conventional textile manufacturing. Simplifyber emphasizes plant-based formulas and scalable manufacturing methods, offering an alternative to the legacy factory system that seeks to lower environmental and social impacts of apparel production. Through its process, the company seeks to provide durable, recyclable, and sustainable products that align with circular economy principles.

Mojave Energy Systems

Series A in 2024
Mojave Energy Systems specializes in manufacturing energy-efficient air conditioning solutions for commercial buildings. Their products include ventilation systems, dedicated outdoor air systems (DOAS), and liquid desiccant air conditioners designed to reduce energy consumption by approximately half compared to conventional systems, thereby lowering operational costs and carbon footprint.

Blue Energy

Series A in 2024
Blue Energy is a company specializing in modular nuclear power plants, focusing on the provision of offshore nuclear energy solutions. The company is dedicated to delivering reliable, clean, and abundant electricity, positioning itself as a key player in the transition to sustainable energy sources. By leveraging modular technology, Blue Energy aims to enhance the efficiency and safety of nuclear power generation, addressing the growing global demand for low-carbon energy alternatives.

Monarch Tractor

Series C in 2024
Monarch Tractor is a company that specializes in the development of fully electric and autonomous tractors aimed at improving agricultural productivity, sustainability, and safety. These tractors significantly reduce reliance on fossil fuels, thereby decreasing greenhouse gas emissions and assisting farmers in achieving their sustainability objectives. By employing advanced sensors and machine learning, Monarch tractors navigate fields and monitor crop health autonomously, facilitating precision farming without the need for human intervention. Equipped with sophisticated technology, including cameras and sensors, these tractors collect and analyze data on crop health, soil conditions, and other critical variables, providing farmers with actionable insights to optimize their farming practices, enhance operational efficiency, and increase crop yields.

Roam

Series A in 2024
Roam is a technologically oriented electric mobility firm that creates and develops electric motorbikes and electric buses for emerging markets. Roam provides supporting infrastructure, fleet management software, and after-sales services to create an ecosystem that speeds up the transition to sustainable mobility in new frontier markets.

Transmutex

Series A in 2024
Transmutex is a Swiss company founded in 2019 that specializes in innovative nuclear technology aimed at significantly reducing existing nuclear waste. The company leverages advanced techniques, including particle accelerators, to transmute long-lived nuclear waste into less harmful materials while simultaneously generating carbon-free energy. This energy can be reintegrated into the power grid or utilized for green hydrogen production. Comprising a diverse team of physicists, computer scientists, and environmentalists, Transmutex is pioneering a new approach to nuclear energy that offers scalable, carbon-free solutions without the typical challenges associated with conventional nuclear power plants.

Temo

Series A in 2024
Temo is a manufacturer of portable electric motors designed for small watercraft, including dinghies, sailing boats, and rowboats. The company focuses on creating lightweight and easy-to-install outboard electric propulsion systems that enhance the user experience on the water. By providing innovative and accessible solutions, Temo aims to improve the functionality and enjoyment of various types of small craft.

Gigablue

Seed Round in 2023
Gigablue is dedicated to combating global warming through innovative technology. It focuses on enhancing the efficiency and feasibility of ocean fertilization as a means of carbon dioxide removal, directly addressing climate change for a more sustainable future.

Inlyte Energy

Seed Round in 2023
Inlyte Energy specializes in developing and manufacturing grid-scale batteries for energy storage. Their core product is an innovative iron-sodium battery, which utilizes abundant and low-cost materials like iron and sodium chloride (table salt) to create a safe, efficient, and scalable energy storage solution. This technology supports the global shift towards renewable energy by providing a reliable and cost-effective alternative to traditional battery systems.

Mojave Energy Systems

Seed Round in 2023
Mojave Energy Systems specializes in manufacturing energy-efficient air conditioning solutions for commercial buildings. Their products include ventilation systems, dedicated outdoor air systems (DOAS), and liquid desiccant air conditioners designed to reduce energy consumption by approximately half compared to conventional systems, thereby lowering operational costs and carbon footprint.

Material Evolution

Series A in 2023
Material Evolution is a manufacturing company focused on decarbonizing the cement industry through AI and machine learning-enabled chemistry and a low-capital, energy-efficient production process. It develops smart, sustainable concrete and a cement replacement made from hyper-local waste streams, with the aim of rapidly reducing carbon emissions and helping construction sectors meet their sustainability goals.

Gradient

Series A in 2023
Gradient’s mission is to cool the world by transforming every home to be more comfortable and healthy for the people who inhabit it — without compromising the environment. Today, heating and cooling equipment emits more greenhouse gas emissions than the entire transportation sector, and expansion in the use of cooling is projected to double these emissions in the next 30 years. However, comfortable buildings are critical for health and productivity, especially among communities that are vulnerable to the effects of climate change. Gradient’s vision is a future where everyone has access to comfortable buildings that are fully decarbonized. Our launch product is a direct-to-consumer high-efficiency and low-carbon heat pump.

Mojave Energy Systems

Seed Round in 2023
Mojave Energy Systems specializes in manufacturing energy-efficient air conditioning solutions for commercial buildings. Their products include ventilation systems, dedicated outdoor air systems (DOAS), and liquid desiccant air conditioners designed to reduce energy consumption by approximately half compared to conventional systems, thereby lowering operational costs and carbon footprint.

Cruz Foam

Series A in 2022
Cruz Foam, Inc. is a Santa Cruz, California-based company founded in 2017 that specializes in manufacturing structural foams from chitin, a biopolymer derived from shrimp shells. The company addresses the global plastic pollution crisis by providing bio-benign foam solutions that serve as eco-friendly alternatives to traditional petroleum-based foams. Cruz Foam's products are designed for a variety of applications, including consumer packaging, consumer electronics, automotive, and business-to-business packaging. By utilizing naturally sourced biopolymers, the company creates scalable and compostable materials that can be integrated into existing supply chains at competitive costs. Cruz Foam collaborates with key industry leaders across various sectors, including consumer electronics, appliances, shipping, and consumer packaged goods, to promote sustainable practices and contribute to a cleaner environment.

Halo.Car

Seed Round in 2022
Halo.Car aims to accelerate the transition to electric vehicles by offering an innovative car-sharing service. The company focuses on improving access to electric cars, making them more convenient for users. Halo.Car provides semi-autonomous vehicles equipped with advanced technologies such as cameras, radars, and ultrasonics. These vehicles are connected to remote operators through a 5G network, allowing users to book and drive to their destinations with ease. This service alleviates concerns about parking and enhances road safety while contributing to reduced vehicle emissions. Through its offerings, Halo.Car seeks to promote sustainable mobility for all.

Helios

Seed Round in 2022
Helios is a technology company that develops novel technologies to ensure viable and sustainable life on earth and beyond. From Moonshot to Earth Impact: Helios began as a space technology company with the bold mission to extract oxygen from the moon, with the challenge to enable the separation of oxygen from lunar minerals in extreme environments, where zero emissions are not an option but a necessity. Helios efforts resulted in a breakthrough zero-emission process for metal production, applicable also on Earth – known as the Helios Cycle™. Enabling Zero-Emission Iron Production: the Helios Cycle™ revolutionizes iron production. It produces iron from iron ore using mostly thermal energy, emitting only oxygen. This eco-friendly method requires significantly less energy, cuts costs, minimizes environmental impact, and maximizes existing resource utilization. Beyond Iron: the Helios Cycle™ doesn’t stop at iron. It extends to other critical elements—silicon, copper, nickel, and lithium—offering a greener path for resource extraction. Helios has evolved from its lunar origins to focus on green steel innovation. Through partnerships and collaborations, Helios aims to impact the steel industry.

Simplifyber

Seed Round in 2022
Simplifyber develops biomaterial-based apparel and soft Goods using a proprietary additive manufacturing process that forms clothing and related items from cellulose-based materials. By eliminating sewing and traditional assembly lines, the company aims to transform the fashion supply chain toward sustainable, closed-loop production. The technology enables biodegradable garments, footwear, furniture, and accessories while reducing waste, carbon emissions, and water use associated with conventional textile manufacturing. Simplifyber emphasizes plant-based formulas and scalable manufacturing methods, offering an alternative to the legacy factory system that seeks to lower environmental and social impacts of apparel production. Through its process, the company seeks to provide durable, recyclable, and sustainable products that align with circular economy principles.

Modern Hydrogen

Series B in 2021
Modern Hydrogen is a pioneering energy technology company that develops distributed hydrogen production systems. Their core mission is to enable commercial and industrial operations to generate clean hydrogen on-site, transforming heat from boilers and furnaces into usable power. This process efficiently sequesters carbon, helping clients reduce emissions, save money, and enhance operational resilience during power outages.

Cruz Foam

Seed Round in 2021
Cruz Foam, Inc. is a Santa Cruz, California-based company founded in 2017 that specializes in manufacturing structural foams from chitin, a biopolymer derived from shrimp shells. The company addresses the global plastic pollution crisis by providing bio-benign foam solutions that serve as eco-friendly alternatives to traditional petroleum-based foams. Cruz Foam's products are designed for a variety of applications, including consumer packaging, consumer electronics, automotive, and business-to-business packaging. By utilizing naturally sourced biopolymers, the company creates scalable and compostable materials that can be integrated into existing supply chains at competitive costs. Cruz Foam collaborates with key industry leaders across various sectors, including consumer electronics, appliances, shipping, and consumer packaged goods, to promote sustainable practices and contribute to a cleaner environment.

Monarch Tractor

Series B in 2021
Monarch Tractor is a company that specializes in the development of fully electric and autonomous tractors aimed at improving agricultural productivity, sustainability, and safety. These tractors significantly reduce reliance on fossil fuels, thereby decreasing greenhouse gas emissions and assisting farmers in achieving their sustainability objectives. By employing advanced sensors and machine learning, Monarch tractors navigate fields and monitor crop health autonomously, facilitating precision farming without the need for human intervention. Equipped with sophisticated technology, including cameras and sensors, these tractors collect and analyze data on crop health, soil conditions, and other critical variables, providing farmers with actionable insights to optimize their farming practices, enhance operational efficiency, and increase crop yields.

Roam

Seed Round in 2021
Roam is a technologically oriented electric mobility firm that creates and develops electric motorbikes and electric buses for emerging markets. Roam provides supporting infrastructure, fleet management software, and after-sales services to create an ecosystem that speeds up the transition to sustainable mobility in new frontier markets.

Monarch Tractor

Series A in 2021
Monarch Tractor is a company that specializes in the development of fully electric and autonomous tractors aimed at improving agricultural productivity, sustainability, and safety. These tractors significantly reduce reliance on fossil fuels, thereby decreasing greenhouse gas emissions and assisting farmers in achieving their sustainability objectives. By employing advanced sensors and machine learning, Monarch tractors navigate fields and monitor crop health autonomously, facilitating precision farming without the need for human intervention. Equipped with sophisticated technology, including cameras and sensors, these tractors collect and analyze data on crop health, soil conditions, and other critical variables, providing farmers with actionable insights to optimize their farming practices, enhance operational efficiency, and increase crop yields.
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