Prelude Ventures

Persefoni AI Inc., established in 2020 and headquartered in Tempe, Arizona, specializes in developing an artificial intelligence-based platform for carbon footprint accounting and management. The company's core product, Persefoni, is a SaaS-based platform that measures, analyzes, plans, forecasts, and reports organizational and investment portfolio carbon footprints. It provides actionable performance context, enabling businesses to manage carbon transactions and inventory with the same rigor as financial transactions. Persefoni caters to a wide range of clients, including institutional investors, sustainability teams, CFOs, and business unit leaders, offering tools for carbon accounting, planning, forecasting, and sustainability reporting. The platform serves as a single source of carbon truth, facilitating compliance with stakeholder and regulatory climate disclosure requirements.

Augmenta is motivated by the belief that generative methods enable a revolution in the way people function and approach. They provide the construction industry with the ability to design buildings more efficiently and at a lower cost, enabling a future of sustainable buildings, cities, and infrastructure. Their designs are NEC and customer specification compliant, use real parts, are fully constructible and optimized for prefabrication.

Vaulted Deep specializes in innovative waste management solutions. It employs patented geologic slurry injection technology to permanently sequester organic wastes underground, achieving significant carbon dioxide removal while promoting local environmental health.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Windfall Bio is an innovative company based in San Mateo, California, that addresses climate change by transforming harmful methane emissions into organic fertilizer. Established in 2022, the company utilizes methane-eating microbes to capture methane from various sources, including agriculture, oil and gas, and waste management. This nature-based technology not only reduces the methane footprint of these industries but also improves their operational efficiency and profitability while minimizing the negative environmental impacts associated with synthetic fertilizers. By providing farmers and other producers with the means to convert methane into valuable soil nutrients, Windfall Bio fosters a sustainable agricultural future and contributes positively to environmental conservation. The company is backed by prominent venture capital firms, reflecting its potential to make a significant impact in the fight against climate change.

Persefoni AI Inc., established in 2020 and headquartered in Tempe, Arizona, specializes in developing an artificial intelligence-based platform for carbon footprint accounting and management. The company's core product, Persefoni, is a SaaS-based platform that measures, analyzes, plans, forecasts, and reports organizational and investment portfolio carbon footprints. It provides actionable performance context, enabling businesses to manage carbon transactions and inventory with the same rigor as financial transactions. Persefoni caters to a wide range of clients, including institutional investors, sustainability teams, CFOs, and business unit leaders, offering tools for carbon accounting, planning, forecasting, and sustainability reporting. The platform serves as a single source of carbon truth, facilitating compliance with stakeholder and regulatory climate disclosure requirements.

Ebb Carbon specializes in atmospheric carbon dioxide removal via a reverse electrochemical process that enhances the ocean's natural ability to store CO2 safely while reducing acidity. This innovative approach offers potential scalability and affordability.

Rumin8 is addressing a critical environmental challenge by targeting methane emissions from livestock, which account for approximately 3.7% of global greenhouse gas emissions. The company has developed a groundbreaking technology that significantly reduces methane emissions from cattle by up to 95% by harnessing and transforming natural anti-methane compounds found in plants into dietary supplements for livestock. This innovation not only curtails methane production but also enhances the efficiency of the animals’ digestive systems, thereby providing them with more energy for growth. Rumin8's mission is to decarbonize millions of cattle worldwide, contributing to a more sustainable and climate-favorable food system to meet the dietary needs of a growing global population.

Mill Industries develops and rents smart kitchen bins that chop, dry, shrink, and deodorize food waste overnight, turning it into a coffee‑ground‑like material. The system is digitally connected, allowing users to monitor usage and receive free shipping of the dried residue to a partner facility that converts it into animal feed or compost. By reducing household waste and enabling efficient recycling, the company addresses climate‑related food waste challenges.

Rumin8 is addressing a critical environmental challenge by targeting methane emissions from livestock, which account for approximately 3.7% of global greenhouse gas emissions. The company has developed a groundbreaking technology that significantly reduces methane emissions from cattle by up to 95% by harnessing and transforming natural anti-methane compounds found in plants into dietary supplements for livestock. This innovation not only curtails methane production but also enhances the efficiency of the animals’ digestive systems, thereby providing them with more energy for growth. Rumin8's mission is to decarbonize millions of cattle worldwide, contributing to a more sustainable and climate-favorable food system to meet the dietary needs of a growing global population.

Mori, formerly known as Overlook Research, is a company that develops a natural biopolymer coating designed to extend the shelf life of perishable foods. Founded in 2016 and headquartered in Boston, Massachusetts, Mori's innovative coating is made from proteins extracted from natural silk using salt and water. This protective layer helps slow the spoiling process of various food items, including fruits, vegetables, meat, and seafood, thereby reducing food waste. By focusing on sustainable and economical solutions, Mori aims to transform the food supply and enhance the efficiency of the food, agriculture, and packaging industries.

Living Carbon is a public benefit corporation based in San Francisco, California, founded in 2019 by Maddie Hall and Patrick Mellor. The company leverages advanced biotechnology to enhance the natural ability of plants, particularly trees, to capture and store carbon dioxide (CO2). By improving photosynthesis, inhibiting photorespiration, increasing growth rates, and shortening tree growing cycles, Living Carbon aims to create more durable wood for building and manufacturing applications while addressing climate change. The company's ultimate goal is to restore balance to the planet's metabolic processes through innovative forest biotechnology solutions.

Verdox is dedicated to reversing climate change through the development and deployment of advanced technology. The company’s proprietary electro-swing process, developed at MIT, enables carbon dioxide and other acid gases to be captured with up to 80% less energy and 70% less cost than conventional approaches.

Mill Industries develops and rents smart kitchen bins that chop, dry, shrink, and deodorize food waste overnight, turning it into a coffee‑ground‑like material. The system is digitally connected, allowing users to monitor usage and receive free shipping of the dried residue to a partner facility that converts it into animal feed or compost. By reducing household waste and enabling efficient recycling, the company addresses climate‑related food waste challenges.

Persefoni AI Inc., established in 2020 and headquartered in Tempe, Arizona, specializes in developing an artificial intelligence-based platform for carbon footprint accounting and management. The company's core product, Persefoni, is a SaaS-based platform that measures, analyzes, plans, forecasts, and reports organizational and investment portfolio carbon footprints. It provides actionable performance context, enabling businesses to manage carbon transactions and inventory with the same rigor as financial transactions. Persefoni caters to a wide range of clients, including institutional investors, sustainability teams, CFOs, and business unit leaders, offering tools for carbon accounting, planning, forecasting, and sustainability reporting. The platform serves as a single source of carbon truth, facilitating compliance with stakeholder and regulatory climate disclosure requirements.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

Founded in 2010, Pivot Bio is a biotechnology company specializing in microbial nitrogen fertilizers. It harnesses naturally occurring microbes to provide nutrients to crops sustainably, aiming to reduce the need for petrochemical fertilizers and improve crop yield.

Heirloom is a carbon capture company developing direct air capture technology that accelerates the natural absorption of carbon dioxide. Its approach uses a limestone-based process to increase CO2 uptake and stores the captured carbon permanently underground, powered by renewable energy. The company also applies carbon capture and utilization techniques to enhance natural CO2 removal. By offering a scalable, renewable-energy driven solution, Heirloom aims to help businesses meet sustainability goals with a cost-effective path to significant carbon removal.

Solidia Technologies is an advanced materials company that develops low‑energy processes for building and construction products. Its proprietary technology captures and stores CO₂ in concrete, turning the gas into a useful component of the material. The company’s solutions enable the production of cement, concrete, and stone alternatives that deliver higher performance while reducing energy use and waste. By integrating artificial intelligence into the manufacturing workflow, Solidia improves quality control, cuts material waste, and lowers carbon emissions, supporting a more sustainable construction industry. Founded in 2008 and headquartered in Piscataway, New Jersey, the firm serves the concrete and cement sectors worldwide.

Mori, formerly known as Overlook Research, is a company that develops a natural biopolymer coating designed to extend the shelf life of perishable foods. Founded in 2016 and headquartered in Boston, Massachusetts, Mori's innovative coating is made from proteins extracted from natural silk using salt and water. This protective layer helps slow the spoiling process of various food items, including fruits, vegetables, meat, and seafood, thereby reducing food waste. By focusing on sustainable and economical solutions, Mori aims to transform the food supply and enhance the efficiency of the food, agriculture, and packaging industries.

Mori, formerly known as Overlook Research, is a company that develops a natural biopolymer coating designed to extend the shelf life of perishable foods. Founded in 2016 and headquartered in Boston, Massachusetts, Mori's innovative coating is made from proteins extracted from natural silk using salt and water. This protective layer helps slow the spoiling process of various food items, including fruits, vegetables, meat, and seafood, thereby reducing food waste. By focusing on sustainable and economical solutions, Mori aims to transform the food supply and enhance the efficiency of the food, agriculture, and packaging industries.

SCiFi Foods is a food technology company focused on developing a sustainable and ethical alternative to conventional meat through the production of cultivated meat. By combining lab-grown meat cells with plant-based ingredients, the company aims to create burgers that closely replicate the taste and sensory experience of traditional beef. SCiFi Foods has achieved significant milestones, including the successful growth of beef cells in suspension, which has the potential to dramatically reduce production costs. Co-founded by CEO Joshua March and CTO Kasia Gora, PhD, the company leverages advanced bioengineering techniques to provide a nutritious and animal-free meat experience. With a commitment to transforming the food landscape, SCiFi Foods has attracted substantial investment from prominent venture capital firms.

Lime operates a smart mobility fleet comprising electric scooters and pedal bikes, aiming to provide sustainable first- and last-mile transportation solutions. The company partners with cities worldwide to offer affordable, convenient, and eco-friendly travel alternatives.

Founded in 2010, Pivot Bio is a biotechnology company specializing in microbial nitrogen fertilizers. It harnesses naturally occurring microbes to provide nutrients to crops sustainably, aiming to reduce the need for petrochemical fertilizers and improve crop yield.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

GreenLight Biosciences is a biotechnology company specializing in RNA-based solutions for agriculture and pharmaceutical applications. It develops mRNA vaccines, including COVID-19 candidates, and offers sustainable crop protection technologies using its proprietary cell-free production platform.

Solidia Technologies is an advanced materials company that develops low‑energy processes for building and construction products. Its proprietary technology captures and stores CO₂ in concrete, turning the gas into a useful component of the material. The company’s solutions enable the production of cement, concrete, and stone alternatives that deliver higher performance while reducing energy use and waste. By integrating artificial intelligence into the manufacturing workflow, Solidia improves quality control, cuts material waste, and lowers carbon emissions, supporting a more sustainable construction industry. Founded in 2008 and headquartered in Piscataway, New Jersey, the firm serves the concrete and cement sectors worldwide.

LevelTen Energy is a Seattle-based company that operates a renewable energy transaction marketplace platform. Founded in 2016, it facilitates connections between corporate and industrial power buyers and utility-scale wind, solar, and storage projects. The platform enables these buyers to access power purchase agreements (PPAs), providing financial security through fixed-price renewables and the economic advantages of large-scale projects. LevelTen Energy equips renewable energy buyers, advisors, and sellers with tools and services to expedite better deals.

EnergySavvy, Inc. is a cloud software company that specializes in providing utility solutions aimed at enhancing customer intelligence, engagement, and action. Founded in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, EnergySavvy offers a cloud-based home energy platform and various software products designed to help consumers understand their energy consumption and reduce utility costs. The company's key offerings include Program Optix and Online Audit, alongside program management services tailored for utilities implementing energy efficiency initiatives. EnergySavvy also provides valuable information on home energy rebates, tax credits, incentives, and financing options. With nearly 40 utility clients and state programs utilizing its services, EnergySavvy focuses on transforming the customer experience and improving operational efficiency in the utilities sector, leveraging expertise in software, user experience, and analytics.

QuantumScape is a renewable energy company focused on advancing solid-state battery technology to enhance the performance and range of electric vehicles. Founded in 2010 by Jagdeep Singh in San Jose, California, the company aims to transform the battery industry by creating a solid-state battery that offers significantly higher energy storage capacity compared to traditional batteries. QuantumScape is developing next-generation solid-state lithium-metal batteries, featuring an innovative anode-less cell design that improves energy density while reducing material costs and streamlining manufacturing processes. Through these advancements, QuantumScape seeks to facilitate the widespread adoption of electric vehicles.

Aquion Energy specializes in developing and commercializing innovative energy storage solutions, particularly its proprietary Aqueous Hybrid Ion (AHI™) batteries. These sodium ion batteries are designed for stationary energy storage and are notable for their environmentally friendly design, utilizing non-toxic components such as saltwater. Aquion's technology addresses the limitations of traditional energy storage systems, providing safe, reliable, and sustainable options that are non-flammable and non-explosive. By enhancing the electrical grid, Aquion's AHI systems optimize existing generation assets and facilitate the broader adoption of renewable energy technologies, thereby contributing to the reduction of reliance on fossil fuels.

EnergySavvy, Inc. is a cloud software company that specializes in providing utility solutions aimed at enhancing customer intelligence, engagement, and action. Founded in 2008 and based in Seattle, Washington, with additional offices in Boulder, Denver, and Cambridge, EnergySavvy offers a cloud-based home energy platform and various software products designed to help consumers understand their energy consumption and reduce utility costs. The company's key offerings include Program Optix and Online Audit, alongside program management services tailored for utilities implementing energy efficiency initiatives. EnergySavvy also provides valuable information on home energy rebates, tax credits, incentives, and financing options. With nearly 40 utility clients and state programs utilizing its services, EnergySavvy focuses on transforming the customer experience and improving operational efficiency in the utilities sector, leveraging expertise in software, user experience, and analytics.

Founded in 2006, Project Frog specializes in developing and constructing energy-efficient component building structures. Its versatile product ecosystem adapts to various architectural uses, including education, healthcare, retail, and more. The company aims to revolutionize construction by applying technology to overcome traditional inefficiencies.