Top California Renewable Energy Startups (65)

Powerline develops AI systems for monitoring and operation of energy assets, enhancing the performance in power markets and reducing emissions.

Who We Are We are a global provider of comprehensive services & products designed specifically to support the complete lifecycle of renewable facilities. With expertise spanning all renewable energy technologies, we partner with our clients to deliver the outcomes necessary for sustainable growth. Our team is dedicated to empowering energy transformation and making a positive impact on the environment. What We Offer A...

Universal Energy Solutions is a dynamic network of independent sales offices that specializes in providing tailored solutions to energy companies. Established with the vision to revolutionize the energy sector, our network brings together a diverse range of sales professionals dedicated to driving growth and innovation in the industry.

Los Angeles Cleantech Incubator (LACI) is creating an inclusive green economy for the people of Los Angeles by unlocking innovation by working with startups to accelerate the commercialization of clean technologies, transforming markets through partnerships with policymakers, innovators, and market leaders in transportation, energy and sustainable cities, and enhancing communities through workforce development, pilots, and other programs. Founded as an...

BlueSky Utility is a leading distributed-generation solar and energy storage developer and independent power producer (IPP). We collaborate with landlords to optimize the value of their asset portfolios and drive down energy expenses through innovative solar and storage solutions.

We develop, own, and operate energy infrastructure to contribute to the stable and sustainable energy supply in the US and globally. Moreover, by boosting renewable and future energy development and innovation, we aim to be a responsible and reliable energy player in the upcoming low-carbon society.

Luminus is a vertically integrated, fast-growing high-tech company that engages in high-power Light-Emitting-Diode (LED) solid-state lighting, lasers, and SiC power semiconductors for a variety of application areas, including industrial UV, IR, medical, projection displays, high-end illumination lighting, horticulture lighting, grid energy storage, EV and automotive industries. Luminus is at the forefront of the ongoing solid-state lighting revolution and SiC power...

Hanwha Energy USA Holdings Corporation, previously doing business as 174 Power Global, is headquartered in Houston, Texas and is a leading solar energy company wholly owned by Hanwha Energy Corporation. With deep expertise across the solar and battery energy storage system (BESS) development cycle, Hanwha Energy USA partners with landowners, local communities, financial investors, and other stakeholders to build highly...

Frontier Energy is a professional services firm that excels in market transformation. With a team of 170 talented people in eight offices across the U.S., Frontier Energy has decades of experience in program management, engineering, software, and customer engagement. We are committed to a single mission: To provide exceptional programs, services, and tools that encourage the intelligent use of energy. We...

Flipturn is the unified control center for EV charging operations—built for both fleets and businesses. Whether you're managing a private depot or a public charging site, Flipturn helps you stay online, cut costs, and keep EV operations running smoothly. Monitor energy usage, manage access, streamline payments, and unlock insights across your chargers and vehicles—all in one place. Interested in learning more? Let’s...

Improving global health and wellness by changing the way people interact with their environments.

Aether’s mission is to build a future of abundance for the human race. We believe that the machinery of nature can be reverse engineered to manufacture any arrangement of atoms desired, enabling the production of new products anywhere on earth.

Piq Energy helps renewable and load developers connect to the grid faster. Piq automates the detailed technical analysis required to site, size, and interconnect large scale infrastructure like solar + storage projects and datacenters.

Recurrent Energy is a leading utility-scale solar and energy storage project developer, delivering competitive, clean electricity to large energy buyers. Based in the U.S., Recurrent Energy is a wholly owned subsidiary of Canadian Solar Inc. and functions as Canadian Solar’s U.S. project development arm. Recurrent Energy has approximately 5 GW of solar and storage projects in development in the U.S.

Amprius is a leading Lithium-Ion battery developer. Amprius's silicon technology was originally developed at Stanford University and enables dramatic improvements in the energy density and specific energy of Lithium-Ion batteries. Amprius is backed by some of the world’s leading investors, including Trident Capital, VantagePoint Venture Partners, IPV Capital, Kleiner Perkins Caufield & Byers, and Dr. Eric Schmidt.

Focused Energy is the leading laser-driven fusion company pursuing the most promising path to clean, limitless fusion power. The global company, based in the San Francisco Bay Area and Darmstadt, Germany, has brought together the top scientific and engineering minds using proven technologies to unlock fusion power at commercial scale. Focused Energy is working to unleash the next chapter of...

Energy demand across industries is accelerating at an unprecedented pace, and the need for more deployable, efficient, resilient, and scalable infrastructure has never been more critical. The sustainable energy transition alone demands a 3-5x increase in global electricity generation and consumption. Heron Power is building cutting-edge power electronics for the 21st-century grid. We aim to debottleneck the growth of electricity...

Reflect Orbital is developing technology to sell sunlight to those who need it. We imagine a future where sunlight continues powering solar farms and providing lighting after the sun sets. We’re a small team of engineers who make progress by building things quickly and iteratively. Time is our greatest constraint. Join us.

Baya Systems is driving the next wave of foundational chiplet-based, high-performance, and modular semiconductor systems, with a focus on best-in-class on-chip fabric and communication technologies. By enabling seamless interoperability across a diverse array of industry-standard protocols, Baya Systems empowers best-of-breed compute, communication, and I/O solutions to work together. This approach enhances performance, yield, reusability, composability, development time and cost-efficiency. Named...

Inertia is taking the most direct, scientifically-proven path to commercializing fusion, leveraging the only successful achievement of fusion ignition, using a process that was pioneered at the U.S. Department of Energy’s (DOE) Lawrence Livermore National Laboratory (LLNL). With groundbreaking innovation, transformative technology, and multi-year investment, Inertia is committed to commercializing fusion energy in the next decade.