Top Clean Energy Startups in 2024

We save building owners money on their energy bills by managing their onsite energy assets (such as battery storage, HVAC controls, solar, cogeneration, and electric vehicles) intelligently and efficiently with our machine learning platform. Our position as a retail electricity provider allows us to unlock value streams to customers currently unavailable to them.

EnergySage is the "Kayak of Solar" - the industry's leading online marketplace for rooftop and community solar for residential and C&I customers EnergySage helps consumers research and comparison-shop for turnkey solar energy systems and related financing options. Our platform allows homeowners, businesses and non-profits to easily and quickly solicit and compare competitive quotes for solar PV systems and associated financing options including loans, leases and PPAs. We empower the solar consumers and offer an unprecedented level of choice and transparency into prices and product and installer quality, financing options and allowing them to quickly and easily determine the best value for them.

Amperon is the leading analytics and forecasting company for the energy transition. We are venture-backed with support from leading venture and strategic investors who deeply understand energy and software. We are experiencing rapid growth on the back of a killer product that delivers compelling value for energy market participants on both the supply (power & utilities companies) and demand (large energy users) sides of the market. The company is 6 years old, with co-founders that have fused the best-of-breed from the energy (power trader at leading power generators and financials) and technology (data science and engineering at scaling tech companies) industries into a high-performance culture, with the following core values: • We fill in the blanks • We are reliable • We are customer-aligned • We are relentless • We do the hard things • We stay curious The company’s headquarters is Houston, TX, the energy transition capital of the world, but we operate as a highly effective distributed team, spread across the globe.

Commonwealth fusion systems (cfs) was spun out of mit's plasma science and fusion center to leverage the decades of fusion research combined with the innovation and speed of the private sector. supported by the world’s leading investors in breakthrough energy technologies, the cfs team is uniquely positioned to deliver the fastest path to commercial fusion energy. cfs has assembled a world class team that includes experts in magnets, manufacturing and plasma physics dedicated to the mission of delivering clean, limitless fusion power to the world.

InHome is a marketplace offering Heating & Cooling (HVAC) services direct-to-consumer online. Buying HVAC services the traditional way requires hours of a homeowner's time and costs $10,000+ per installation. An online marketplace can save 10+ hours and $2,000+ by no longer needing to research, make calls, schedule appointments, compare quotes, or negotiate pricing. InHome is a direct-to-consumer home services startup incubating within HomeWorks Energy, a 460-employee home energy efficiency company in Boston, MA. Since 2019, the impact of our services saved over 1,000,000 metric tons of CO2 and took over 200,000 cars off the road for one year. The HVAC market is nearly $100 billion and includes 100,000 HVAC companies employing 500,000 professionals.

cove.tool is a building performance platform for intelligent design. We recently raised a $30 million Series B with the backing Coatue and Robert Downey Jr's Footprint Coalition! Come join a company that is making a difference in the fight to stop climate change. We've already helped the building industry avoid 5x more carbon than Tesla in the last year!

Omnidian’s award-winning teams have been protecting the large-scale residential solar portfolios of our fortune 1000 clients and now - the industry’s leading residential solar protection plan with a 95% performance guarantee is available to homeowners through select elite and premier dealers. in 2017, we were awarded the department of energy sunshot grant, which accelerates the development of highly impactful solar energy technologies.

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