Andreessen Horowitz
Andreessen Horowitz is a venture capital firm founded in 2009 by Marc Andreessen and Ben Horowitz and based in Menlo Park, California. It funds startups across the entire lifecycle, from seed to growth, with a broad focus on software and technology-enabled businesses. The firm backs companies in software, cloud infrastructure, digital platforms, data storage, and mobile and Internet services, as well as sectors at the intersection of technology with life sciences, such as bio healthcare and computational medicine. Its investments span artificial intelligence, fintech, consumer and enterprise software, crypto and blockchain, cybersecurity, and related infrastructure. Through strategic guidance and a hands-on approach, the firm aims to help portfolio companies scale and innovate.
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Past deals in Energy
Crux
Series B in 2025
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Aetherflux
Series A in 2025
Aetherflux is an aerospace company focused on providing renewable energy solutions to households, businesses, and military operations worldwide. The company has developed an innovative design for space-based solar power, which entails a constellation of small satellites that harness sunlight, convert it into electricity, and wirelessly transmit the power to ground stations. This technology aims to deliver reliable energy distribution while minimizing environmental impact, positioning Aetherflux at the forefront of the renewable energy sector.
Radiant
Series C in 2024
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
Starcloud
Seed Round in 2024
Starcloud is focused on developing megawatt-scale data centers in space, with plans for scalable expansion to gigawatt capacity. The company designs power and cooling systems that leverage reduced launch costs to capitalize on the abundant energy and passive cooling available in the space environment. By providing high-speed connectivity, Starcloud aims to create cost-competitive, sustainable, and rapidly scalable data centers that support critical infrastructure needs for the future.
Exowatt
Seed Round in 2024
Exowatt is a next-generation renewable energy company that specializes in providing sustainable energy solutions for commercial and industrial applications. The company develops a modular full-stack energy system that consists of a heat collector, a heat battery, and a heat engine. This innovative system is designed to deliver dispatchable power and heat, ensuring that energy is consistently available to meet the demands of energy-intensive operations, such as data centers. By focusing on modularity and efficiency, Exowatt aims to enhance the accessibility and reliability of renewable energy, facilitating a transition towards more sustainable energy practices in various industries.
Crux
Series A in 2024
Crux is the capital markets technology company changing the way clean energy and manufacturing projects are financed in the U.S. Crux’s platform, market intelligence, and expert team help developers and manufacturers raise capital through all stages of project development and operation. The company’s first offering is the leading platform for tax credit transfers. Since its launch in 2023, Crux has raised more than $27 million in funding from venture capital and strategic investors. Crux’s world-class team brings together expertise from energy, tax, finance, government, and technology to power an abundant, resilient, and secure energy future. For more information, visit https://www.cruxclimate.com/.
Radiant
Series B in 2023
Radiant is a clean energy startup based in Los Angeles, California, that specializes in the development of portable nuclear microreactors. Founded in 2019, the company aims to provide an alternative to fossil fuels for both military and commercial applications. Its flagship product, the Kaleidos microreactor, is designed to fit within a shipping container, allowing for transportation by air, ship, and road. This innovative microreactor serves as a zero-emissions power source, making it particularly suitable for remote locations and critical applications where traditional diesel generators are typically used.
Workrise
Series E in 2021
Workrise is a technology company that offers a platform to support the energy workforce by connecting businesses with qualified field workers and related vendors. The platform covers sourcing to payments, enabling vendor management, communication, collaboration, and resource sharing to streamline field operations in the energy industry and improve efficiency by facilitating access to a broader range of services.
Workrise
Series D in 2019
Workrise is a technology company that offers a platform to support the energy workforce by connecting businesses with qualified field workers and related vendors. The platform covers sourcing to payments, enabling vendor management, communication, collaboration, and resource sharing to streamline field operations in the energy industry and improve efficiency by facilitating access to a broader range of services.
SonicEnergy™
Series B in 2017
SonicEnergy, Inc. is a wireless power startup that transmits power to charge electronic devices over-the-air. Its ultrasonic technology comprises a transmitter, which emits a high-frequency sound that is inaudible to users and their pets; and transmits power directly to receivers requesting power, which convert power to usable electrical energy using energy-harvesting technology.
It was founded in 2012 and headquartered in Santa Monica, California.
BlocPower
Pre Seed Round in 2014
BlocPower designs and implements energy efficiency and electrification upgrades for urban buildings, including schools, churches, small businesses, non-profits, and homes. Through proprietary software, machine learning, and IoT-enabled monitoring, it analyzes facilities to identify cost-effective retrofits, combines financing and project management, and delivers scalable deployment that reduces energy waste and utility bills while enhancing indoor air quality and comfort.
SonicEnergy™
Seed Round in 2012
SonicEnergy, Inc. is a wireless power startup that transmits power to charge electronic devices over-the-air. Its ultrasonic technology comprises a transmitter, which emits a high-frequency sound that is inaudible to users and their pets; and transmits power directly to receivers requesting power, which convert power to usable electrical energy using energy-harvesting technology.
It was founded in 2012 and headquartered in Santa Monica, California.
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