Earth Foundry

Earth Foundry is a venture capital firm that invests in promising cleantech startups, focusing on energy innovation. They collaborate with leading energy companies to build and scale these new ventures, providing not just capital, but also essential tools and strategic relationships to help bring innovative ideas to market.

Jason Blumberg

Co-Founder and Managing Director

Christina Merullo

Associate, Investments

36 past transactions

Oxylus Energy

Seed Round in 2024
Oxylus Energy is a carbon conversion company focused on developing innovative technology for the generation of e-fuels. The company utilizes a proprietary electrochemical process to convert captured carbon dioxide into methanol, a clean-burning and versatile fuel. By transforming waste CO2 into a sustainable energy source, Oxylus Energy aims to provide competitive, scalable solutions that support decarbonization efforts in the industrial sector. This approach not only helps reduce reliance on fossil fuels but also promotes a circular economy by integrating carbon capture and conversion into energy production.

Polystyvert

Series B in 2024
Polystyvert Inc. is a Canadian company founded in 2011, specializing in polystyrene recycling services. Based in Anjou, the company employs innovative dissolution technology to efficiently collect and recycle polystyrene, restoring it to its original quality. By focusing on recycling, Polystyvert aims to reduce the volume of polystyrene waste in landfills and minimize fossil fuel consumption, thereby contributing to environmental preservation. The company's services enhance the product life cycle of polystyrene, offering a sustainable solution for clients seeking to mitigate their environmental impact.

Earthshot Labs

Venture Round in 2024
Earthshot Labs is a developer of a climate mitigation platform focused on ecological restoration on a global scale. The company utilizes an AI-powered platform to connect investors, carbon buyers, and land stewards, facilitating the financing of projects that promote ecological restoration while ensuring equity for local communities. Its comprehensive tool allows users to algorithmically identify specific regenerative strategies tailored to individual land parcels, ultimately enabling clients to maximize both the natural and economic potential of their land. Through its innovative approach, Earthshot Labs aims to enhance ecosystem regeneration and contribute to climate solutions worldwide.

Harvest Thermal

Seed Round in 2023
Harvest Thermal develops a control system for home use that integrates heating, hot water, and cooling with thermal storage. Its Harvest Thermal Pod is a cloud-connected IoT device that is machine learning enabled. It aims to provide affordable and low-carbon heating, hot water, and cooling systems that reduce the impact on the planet while providing comfort and safer homes.

3E Nano

Seed Round in 2023
3E Nano Inc. is a Canadian company based in Kitchener that specializes in the development and commercialization of diamond-like carbon coatings designed to control heat and light emission. Founded in 2006, the company produces optically and thermally tunable solar control coatings that can be applied to various transparent media, including windows, windshields, greenhouses, and solar modules. These low-cost coatings enable manufacturers to create energy-efficient products that help reduce greenhouse gas emissions, making them suitable for a wide range of applications in both residential and commercial sectors.

Recurve

Series B in 2022
Recurve is a technology company based in Mill Valley, California, that offers an open-source SaaS platform designed to facilitate the management and analysis of energy usage data from smart meters. Founded in 2005, Recurve provides tools that assist utilities in measuring energy consumption and enable contractors to enhance energy efficiency during home audits, remodeling, and construction projects. The platform identifies resource potential behind customer meters and employs innovative marketplace strategies to scale demand flexibility, positioning businesses to effectively plan, procure, and implement solutions that contribute to a clean energy economy.

Azumo

Venture Round in 2022
Azumo front light is here to light the way to the new era of high efficiency, durable displays that don’t fight the environment but work in tandem with it. The time has come for all of us to reflect on what displays can do for devices.

Network Perception

Series A in 2022
Network Perception, Inc. is a technology company specializing in network device configuration analysis software to enhance network management and security. Founded in 2013 and based in Chicago, Illinois, the company offers tools for firewall auditing and continuous monitoring, enabling corporate compliance and cybersecurity managers to visualize their network effectively. Its platform automates the analysis of network device configuration files, providing comprehensive audits and assessments that help organizations ensure their configurations align with best practices and regulatory standards. By delivering these innovative solutions, Network Perception assists businesses in managing cybersecurity vulnerabilities and maintaining compliance within their network environments.

e-Zinc

Series A in 2022
e-Zinc is a company that has pioneered an innovative electrochemical technology for energy storage using zinc metal. This technology enables the conversion of electricity into zinc, which can be stored and used later, providing a cost-effective and flexible solution for long-duration energy storage. The system consists of an electrochemical cell made from recyclable materials, featuring a charging section that absorbs energy and a discharging section where zinc is dissolved to release energy. By facilitating the storage and utilization of electrochemical energy during peak demand periods, e-Zinc aims to support the transition to a fully renewable energy market and contribute to a zero-carbon energy future.

Omnidian

Series B in 2021
Omnidian, Inc. is an insurance company based in Seattle, Washington, specializing in protection plans for residential, commercial, and industrial solar energy systems. Founded in 2015, the company offers comprehensive services that include monitoring, field service repair, and lifetime performance guarantees for solar installations. Omnidian's solutions are designed for both individual homeowners and financial institutions managing large portfolios of residential solar assets. Their offerings encompass real-time performance monitoring, proactive service alerts, and full coverage for hardware and software issues through a nationwide network of service professionals. Additionally, Omnidian guarantees reimbursement for energy loss, ensuring that investments in solar energy are protected and optimized throughout the system's lifecycle. The company aims to support the growth of the residential solar industry while providing peace of mind to its clients.

Volexion

Seed Round in 2021
Volexion Inc., founded in 2018 and based in Chicago, Illinois, specializes in the manufacturing of lithium-ion batteries and the development of advanced graphene coating technology for commercial cathode materials. This innovative technology enhances the performance of conventional lithium-ion batteries by providing significant improvements in battery life, power output, and operational stability across a broader voltage range. Volexion's unique approach combines a comprehensive and adaptable mixture that enhances the electrochemical performance of batteries, positioning the company as a leader in the advancement of battery technology.

Network Perception

Seed Round in 2020
Network Perception, Inc. is a technology company specializing in network device configuration analysis software to enhance network management and security. Founded in 2013 and based in Chicago, Illinois, the company offers tools for firewall auditing and continuous monitoring, enabling corporate compliance and cybersecurity managers to visualize their network effectively. Its platform automates the analysis of network device configuration files, providing comprehensive audits and assessments that help organizations ensure their configurations align with best practices and regulatory standards. By delivering these innovative solutions, Network Perception assists businesses in managing cybersecurity vulnerabilities and maintaining compliance within their network environments.

Span

Series A in 2020
Span.IO is a company focused on advancing the adoption of renewable energy through innovative technology solutions for residential energy management. The firm develops a smart electrical panel that replaces traditional panels, allowing homeowners to monitor and control their energy usage seamlessly via a dedicated application. This device not only facilitates the efficient use of renewable electricity but also supports electric vehicle charging, enhancing the overall consumer experience. Span.IO's team comprises engineers with expertise in power generation, energy conversion, controls, and system integration, who are committed to creating products that positively impact the environment while providing users with greater visibility and control over their energy consumption.

e-Zinc

Seed Round in 2020
e-Zinc is a company that has pioneered an innovative electrochemical technology for energy storage using zinc metal. This technology enables the conversion of electricity into zinc, which can be stored and used later, providing a cost-effective and flexible solution for long-duration energy storage. The system consists of an electrochemical cell made from recyclable materials, featuring a charging section that absorbs energy and a discharging section where zinc is dissolved to release energy. By facilitating the storage and utilization of electrochemical energy during peak demand periods, e-Zinc aims to support the transition to a fully renewable energy market and contribute to a zero-carbon energy future.

Sistine Solar

Venture Round in 2019
Sistine Solar, Inc. is a renewable energy company based in Somerville, Massachusetts, established in 2012. The company specializes in manufacturing SolarSkin, a product that camouflages solar panels to blend seamlessly with various roofing styles. Sistine Solar offers a range of customizable solar panel options, including architectural shingles, 3-tab shingles, concrete tiles, seamed metal roofs, and bespoke designs. By utilizing techniques from solar photovoltaics, color science, and cognitive sciences, Sistine Solar enables homeowners to personalize their solar installations, allowing for a harmonious integration of renewable energy solutions with the aesthetic preferences of their residences.

Omnidian

Series A in 2019
Omnidian, Inc. is an insurance company based in Seattle, Washington, specializing in protection plans for residential, commercial, and industrial solar energy systems. Founded in 2015, the company offers comprehensive services that include monitoring, field service repair, and lifetime performance guarantees for solar installations. Omnidian's solutions are designed for both individual homeowners and financial institutions managing large portfolios of residential solar assets. Their offerings encompass real-time performance monitoring, proactive service alerts, and full coverage for hardware and software issues through a nationwide network of service professionals. Additionally, Omnidian guarantees reimbursement for energy loss, ensuring that investments in solar energy are protected and optimized throughout the system's lifecycle. The company aims to support the growth of the residential solar industry while providing peace of mind to its clients.

Tank Utility

Venture Round in 2019
Tank Utility, Inc. is a Boston-based company, founded in 2014, that specializes in software solutions for the fuel and energy sector. The company designs smart metering devices that utilize wireless sensors to provide real-time tank-level data. Its primary product is a propane monitoring system that combines these sensors with cloud-based applications for efficient business operations. By leveraging innovative business intelligence software, Tank Utility enables fuel distribution companies to minimize unnecessary delivery miles and optimize logistics, thus enhancing customer satisfaction through increased transparency. Additionally, the company offers installation and support services, helping clients improve service efficiency and boost retention rates.

Span

Seed Round in 2018
Span.IO is a company focused on advancing the adoption of renewable energy through innovative technology solutions for residential energy management. The firm develops a smart electrical panel that replaces traditional panels, allowing homeowners to monitor and control their energy usage seamlessly via a dedicated application. This device not only facilitates the efficient use of renewable electricity but also supports electric vehicle charging, enhancing the overall consumer experience. Span.IO's team comprises engineers with expertise in power generation, energy conversion, controls, and system integration, who are committed to creating products that positively impact the environment while providing users with greater visibility and control over their energy consumption.

Azumo

Series B in 2018
Azumo front light is here to light the way to the new era of high efficiency, durable displays that don’t fight the environment but work in tandem with it. The time has come for all of us to reflect on what displays can do for devices.

Polystyvert

Venture Round in 2018
Polystyvert Inc. is a Canadian company founded in 2011, specializing in polystyrene recycling services. Based in Anjou, the company employs innovative dissolution technology to efficiently collect and recycle polystyrene, restoring it to its original quality. By focusing on recycling, Polystyvert aims to reduce the volume of polystyrene waste in landfills and minimize fossil fuel consumption, thereby contributing to environmental preservation. The company's services enhance the product life cycle of polystyrene, offering a sustainable solution for clients seeking to mitigate their environmental impact.

Omnidian

Seed Round in 2017
Omnidian, Inc. is an insurance company based in Seattle, Washington, specializing in protection plans for residential, commercial, and industrial solar energy systems. Founded in 2015, the company offers comprehensive services that include monitoring, field service repair, and lifetime performance guarantees for solar installations. Omnidian's solutions are designed for both individual homeowners and financial institutions managing large portfolios of residential solar assets. Their offerings encompass real-time performance monitoring, proactive service alerts, and full coverage for hardware and software issues through a nationwide network of service professionals. Additionally, Omnidian guarantees reimbursement for energy loss, ensuring that investments in solar energy are protected and optimized throughout the system's lifecycle. The company aims to support the growth of the residential solar industry while providing peace of mind to its clients.

Open Energy Efficiency

Seed Round in 2016
OpenEE offers a SaaS open-source platform that uses smart meter data to calculate and analyze energy efficiency savings in real-time.

Bractlet

Venture Round in 2016
Bractlet, Inc. is an information technology company based in Austin, Texas, that specializes in energy intelligence solutions aimed at maximizing energy efficiency and optimizing building performance. Founded in 2011, Bractlet offers an integrated platform that combines hardware and software to analyze business performance and reduce energy waste. Its hardware includes a commercial electrical panel capable of managing up to 42 branch circuits, while its measurement and verification software provides stakeholders with detailed performance reports. By leveraging advanced building energy modeling and big data analytics, Bractlet delivers innovative solutions tailored for the real estate industry, enhancing operational efficiency and maximizing the value of energy investments.

Tank Utility

Seed Round in 2016
Tank Utility, Inc. is a Boston-based company, founded in 2014, that specializes in software solutions for the fuel and energy sector. The company designs smart metering devices that utilize wireless sensors to provide real-time tank-level data. Its primary product is a propane monitoring system that combines these sensors with cloud-based applications for efficient business operations. By leveraging innovative business intelligence software, Tank Utility enables fuel distribution companies to minimize unnecessary delivery miles and optimize logistics, thus enhancing customer satisfaction through increased transparency. Additionally, the company offers installation and support services, helping clients improve service efficiency and boost retention rates.

RedWave Energy

Series B in 2016
RedWave Energy, Inc. is a cleantech company based in Boulder, Colorado, founded in 2011. The firm specializes in developing innovative technology to capture and convert low-temperature waste heat from power plants into electricity. By utilizing advanced nano-antenna technology licensed from Idaho National Labs and high-speed diode technology from the University of Colorado, RedWave aims to harvest energy from the infrared and near-infrared spectrum. The company’s initial focus is on converting low-quality industrial waste heat into renewable energy, with plans for future phases that include generating electricity from visible light and developing capabilities for terahertz wave detection. RedWave Energy collaborates with MicroContinuum, a technology development firm, to facilitate the fabrication of nano-scale antennas and terahertz electronics essential for its energy capture initiatives.

InVekTek

Seed Round in 2016
InVekTek, LLC is a technology company based in Atlanta, Georgia, specializing in industrial motion control solutions for cranes. The company has developed the Sway Master command shaping technology, which includes the T 1000 Sway Master, designed to prevent unwanted sway during crane operations. This innovative software utilizes advanced algorithms to intercept, reshape, and reissue control inputs, allowing machines to operate more smoothly and efficiently. By providing automatic compensation for rigging, InVekTek enhances the safety and cost-effectiveness of crane operations across various industries, ensuring that machinery can run faster and with greater stability.

Advanced Diamond Technologies

Venture Round in 2015
Advanced Diamond Technologies, Inc. engages in developing and applying diamond films for industrial, electronic, and medical applications. It offers AFM probes, ultrananocrystalline diamond seals, and ultrananocrystalline diamond wafers for MEMS development and UNCD product prototyping. The company also provides MEMS, applications development, and coating services. In addition, it offers UNCD Electrodes for advanced electrochemical water treatment applications. Further, the company operates as a licensee to the Argonne portfolio of application and process patents for using, synthesizing, and micromachining ultrananocrystalline diamond films. It offers its products through its Website, as well as through distributors in the United States and internationally. Advanced Diamond Technologies, Inc. was incorporated in 2002 and is based in Romeoville, Illinois.

Bractlet

Seed Round in 2015
Bractlet, Inc. is an information technology company based in Austin, Texas, that specializes in energy intelligence solutions aimed at maximizing energy efficiency and optimizing building performance. Founded in 2011, Bractlet offers an integrated platform that combines hardware and software to analyze business performance and reduce energy waste. Its hardware includes a commercial electrical panel capable of managing up to 42 branch circuits, while its measurement and verification software provides stakeholders with detailed performance reports. By leveraging advanced building energy modeling and big data analytics, Bractlet delivers innovative solutions tailored for the real estate industry, enhancing operational efficiency and maximizing the value of energy investments.

Digital H2O

Convertible Note in 2015
Digital H2O is a Chicago-based software and Big Data technology company that specializes in water management services for the oil and gas industry. The company has created an online analytics platform designed to transform how energy companies manage their water resources, which are often scarce. Its primary offering, Water Asset Intelligence, enables oil and gas producers and service providers to optimize water logistics and uncover new market opportunities. The platform provides essential visibility into water volumes and transport logistics while enhancing asset awareness and planning for oilfield water management. Additionally, it includes analysis tools and data visualization capabilities to support effective decision-making in water resource management.

Edison DC Systems

Series A in 2014
EDCS Power designs and builds equipment that improves end to end power efficiency in data centers. EDCS captures the energy savings of direct current (DC) over alternating current (AC) while addressing space and scalability costs traditionally associated with DC systems. EDCS’s patent-pending, modular AC to DC converter racks deliver more power more efficiently to IT server equipment. EDCS improves system reliability and increases operator safety. EDCS’s proprietary technology is the only direct current solution that can be implemented at the rack, row, or entire building level.

NanoGraf

Seed Round in 2014
NanoGraf Corporation is a materials science company based in Chicago, Illinois, focused on the development and commercialization of advanced materials for the energy storage market. Founded in 2012, the company specializes in silicon-graphene electrode materials for lithium-ion batteries. NanoGraf has created a high energy density silicon-based anode material that presents a promising alternative to traditional graphitic-based anodes. This innovative technology has applications across various sectors, from consumer electronics to electric vehicles. The company's materials are designed to enhance battery capacity and reduce charging times, enabling the production of lithium-ion batteries through a cost-effective, chemistry-based manufacturing process.

Digital H2O

Convertible Note in 2014
Digital H2O is a Chicago-based software and Big Data technology company that specializes in water management services for the oil and gas industry. The company has created an online analytics platform designed to transform how energy companies manage their water resources, which are often scarce. Its primary offering, Water Asset Intelligence, enables oil and gas producers and service providers to optimize water logistics and uncover new market opportunities. The platform provides essential visibility into water volumes and transport logistics while enhancing asset awareness and planning for oilfield water management. Additionally, it includes analysis tools and data visualization capabilities to support effective decision-making in water resource management.

GlidePath Power

Seed Round in 2014
GlidePath Power is a developer specializing in battery power systems that encompass a range of technologies, including wind, solar, distributed gas, and energy storage. The company possesses extensive experience as both an owner-operator and a turnkey developer of renewable energy and storage facilities. GlidePath Power leverages its deep understanding of the energy markets to identify and capitalize on opportunities in the sector, making it well-equipped to develop financeable power projects. This unique expertise allows GlidePath Power to navigate the complexities of various technologies, providing valuable insights and support to businesses engaged in power projects across the United States.

Intellihot

Seed Round in 2013
Intellihot is a manufacturer of tankless water heater systems for both residential and commercial applications. Established in 2005, the company emerged from the founder's experience with a traditional water heater malfunction. Intellihot's innovative designs, which have several patents pending, focus on conserving space and eliminating the need for bulky storage tanks. The systems are equipped with advanced connectivity features, including Wi-Fi and 3G/4G capabilities, allowing users to connect to a router or internet hub. This connectivity enables the analysis of water usage patterns, providing clients with on-demand water heating solutions that are both efficient and space-saving.

Root3 Technologies

Seed Round in 2013
Root3 Technologies Inc. specializes in providing energy analytics solutions through its innovative cloud-based technology and big-data analytics. Founded in 2011 and headquartered in Chicago, with an additional location in Ann Arbor, the company offers a suite of tools designed to optimize energy management. Its key products include DIAGNOSE, an energy assessment service; BALANCE, which facilitates real-time operational improvements; and ELEVATE, a planning tool for production managers and engineers. The company's solutions focus on areas such as optimization, measurement and verification, market participation, rate analysis, demand management, and capital planning support. Root3 Technologies serves a diverse range of sectors, including manufacturing, hospitality, corporate campuses, and cold-storage operations, helping clients achieve significant reductions in energy costs.

Atlas Data Storage

Atlas Data Storage specializes in innovative data storage solutions. It develops systems that encode digital information into synthetic DNA, offering end-to-end services from semiconductor-based synthesis to enzyme engineering. This approach enables long-term, high-density data storage, catering to diverse sectors with scalable and energy-efficient solutions.
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