Top Energy Startups in 2024

At Therma, we build technology that ensures safety and sustainability from farm to fork -- to protect our food and our planet. Our IoT-based 24/7 temperature monitoring sensors and mobile checklist app eliminate food waste, improve safety and reduce refrigeration emissions, protecting millions worldwide. We’re deployed across 5,000+ restaurants, retailers and manufacturers with leading brands including McDonalds, Burger King, Domino's, TGI Fridays, 7-Eleven and Wyndham Hotels. Founded by experienced entrepreneurs from Harvard, Columbia and UC Santa Barbara, we’re a mission-driven team passionate about food, climate and health. We are headquartered in San Francisco, and supported by experienced venture capitalists including investors from D. E. Shaw, Deciens Capital, Govtech Fund, Collaborative Fund, Social Capital, and Stage Venture Partners.

At Optivolt, we engineer next-gen power electronics for solar modules, enabling up to 60x more power in shaded conditions. Our technology is deployed with the National Oceanic and Atmospheric Administration, U.S. Air Force, and Ukraine Armed Forces, ensuring reliable solar energy production, even in the harshest environments on the planet. After proven success with our military partners, we’re bringing this technology to residential homes across the country. Millions of previously-disqualified homes are now eligible for solar power — rain, shine, or shade. Join our mission in making solar energy accessible for all, engineering a cleaner, sustainable future. With Optivolt, the future of solar energy is brighter than ever.

Predictive and proactive IoT-based building automation system that addresses HVAC, lighting, and equipment control needs

Oklo is a California-based company developing clean energy plants to provide emission-free, reliable, and affordable energy using advanced fission. Oklo is a fast-growing startup with a history of reliable funding and milestones for more than 5 years. Oklo’s first product is a microgrid scale powerhouse. The powerhouse can produce clean energy for decades without needing to refuel, and also has the capability to turn nuclear waste into clean energy. Oklo received a Site Use Permit from the U.S Department of Energy, demonstrated fabrication of its fuel, was awarded fuel from the Idaho National Laboratory, and submitted the first accepted advanced fission license application to the regulator. Oklo has been featured in Popular Mechanics, Wired, Architectural Digest, Hyperallergic, POWER Magazine, and has been the subject of a Harvard Business School case, and was featured in the documentary The New Fire, among many other features.

Arcadia is a fast-growing technology company that is revolutionizing the utility industry. At Arcadia, we’re guided by a common purpose: We believe in a future that is powered by 100% renewable energy. Our team is building the utility of the future - one that breaks down the barriers to clean energy access and puts customers first. Arcadia users all over the country choose clean energy, save with solar power, lower their utility bills and track their impact every day. We make choosing clean energy easy for everyone.

We live in a world where “connected” no longer means attached to a wire. At Reach Labs, we are introducing a new state of charging technology that cuts the cord and pulls us into an era no longer dependent on physical connections to power our lives. As WiFi did with data, Reach’s long-range wireless technology aims not just to improve charging technology, but to transform industries by enabling a new generation of devices and applications. The variety of applications for wireless charging are nearly endless -- we’re identifying areas of greatest value and building solutions. We’re interested in finding exceptional people to join us.

Skylark Drones was born out of the need to use disruptive technologies such as drones to help transform the way roads and highways are planned, our food is produced and farmers are taken care of, minerals and metals are mined and pipelines carrying valuable resources are monitored. We integrate drone solutions into scalable real-world applications that benefit enterprises and the community at large while making sure authenticity takes precedence along with increasing productivity, saving costs and lives.

eDRV helps developers and operators launch flexible EV charging applications. Developers can build custom driver apps and integrations with adjacent systems using our APIs and SDKs. With eDRV you can connect any open charger, accept any payment method, and use our existing integrations to launch your EV charging service at scale.

TrickleStar is a leading provider of energy-saving solutions for homes and businesses. With a focus on sustainability and efficiency, TrickleStar offers a range of innovative products designed to reduce energy consumption and lower utility costs. From smart power strips to energy monitors, TrickleStar's solutions empower users to make informed decisions about their energy usage and contribute to a greener future. With our commitment to quality and performance, TrickleStar has established itself as a trusted name in the energy-saving industry. Whether you're a homeowner looking to reduce your carbon footprint or a business owner aiming to optimize energy efficiency, TrickleStar has the solutions you need.

Nominal is a venture-backed company with offices in Los Angeles, Austin, and New York City that specializes in software and data management products for organizations that are testing and validating complex physical systems (like drones, planes, rockets, engines, satellites, nuclear reactors, etc.). We are backed by prolific and experienced venture capital firms like Founders Fund, Lux Capital, XYZ, Haystack, Human Capital, BoxGroup, etc., and have raised significant venture funding with strong early traction in both commercial aerospace as well as defense applications with the Department of Defense (DoD). The Nominal team comes from commercial companies like SpaceX, Palantir, Anduril, Lockheed Martin, and NASA and is active amongst customers in aerospace, defense, industrial, and advanced energy applications (autonomous aviation, eVTOL/VTOL, flight testing, satellite development, etc.). We are also building and delivering solutions to the United States Air Force (USAF) and are looking to expand use cases across the broader DoD test community. Our product is a data visualization and computation platform designed to accelerate how engineering teams test and validate hardware systems. We specifically aim to shorten the data review process after running tests and helping engineering organizations scale testing campaigns more efficiently and effectively to save time and lower costs. It works by combining heterogeneous data into runs and allowing users to easily build custom visualization and analysis. Users write test logic with interactive computation, and these checks can be applied to historical and future runs to compound learnings. Data sources can include telemetry, sensor data, logs, simulations, and other testing metadata like environment, vehicle, part, version, etc.