Top Clean Technology Startups in 2026

We are the operating system for commercial vehicle repair, while providing services and software to help the broader ecosystem - shops, technicians, suppliers - electrify

We exist to to accelerate the monumental shift away from the supersystem of extraction, processing, and burning of fossil fuels - toward lightweight capture and consumption from entirely renewable sources. While decarbonization seems to be beyond our horizon, we remain undaunted; the long arc of energy consumption must bend toward sustainability. We believe in energy from renewable sources seamlessly integrated into everyday life. The future is silent, efficient, zero emission, flexible, distributed, and clean.

Light turns power into a platform. We help leading brands—like solar providers, automakers, and home platforms—offer embedded, branded electricity plans to their customers. Our partners are reshaping how people experience energy, unlocking better customer experiences or the full potential of products like batteries, EVs, and other smart devices. We’re bringing together the best builders in tech and energy, backed by top investors and angels. Based in Austin, TX, we’re not just building a better utility—we’re redefining what a power company can be.

At Halo Industries, we’re on a mission to reinvent a decades-old semiconductor manufacturing process that wastes billions of dollars each year. Our laser-based technology will provide a drastic reduction in cost and improvement in performance that will enable advancements in a diverse set of high-tech industries, such as solar, semiconductor, battery, LED, telecommunications, and power electronics. Our company spun out of Stanford University in 2014 and is funded by a combination of VCs, government grants, and strategic corporate partners. We are hitting the ground running after a recent funding round and are looking to continue building a passionate team to meet our next milestone of deploying a pilot production line to make the world more connected, efficient, and clean.

Dual Fuel Corp. is a Energy Services Company (ESCO) that specializes in mechanical, commodity and technology solutions for energy users. With attention to detail and the highest level of customer service, Dual Fuel is passionate about optimizing energy plants for real estate owners. Mechanical Services/Products Offered: Cogeneration, Oil to Gas Conversions, CNG Station Construction, Boiler Installations, Chiller Installations, 24 Hour Emergency Service, Licensed Master Plumber (LMP #1583), Certified Welders, Pipefitters, Burner Techs and Electricians. Commodity Services/Products Offered: Natural Gas, Oil and Power Hedging Technology: Boiler Controls, Chiller Controls, Live Efficiency Monitoring

Better for Business: Stem delivers electricity bill savings to commercial and industrial customers through an integrated solution of cloud-based predictive software and advanced energy storage. The Stem system lowers your monthly energy bill by reducing peak loads, predicting your energy usage patterns, and deploying stored energy at precise times—with no change to how your business operates. Better for the grid: Stem is the leading aggregator of behind-the-meter storage systems, providing a low-cost, flexible, dispatchable power source to meet utility capacity challenges. Stem operates in congested load centers, thereby creating value at the transmission, distribution, and customer levels. The Stem system can be installed in a single day, and eliminates the safety risk and high balance-of-system costs associated with high-voltage resources.

Eagle Creek Renewable Energy is devoted to our energy future. We own and operate a fleet of 85 hydropower plants in 17 states. These facilities are our laboratory for developing technologies for the next generation of renewables. We are continuously optimizing our facilities and are always searching for better ways of doing things while maintaining operational excellence. We prize safety and stewardship and know that the best path forward aligns with the needs of our communities. We are growing our fleet and our portfolio of technologies as we accelerate towards a sustainable energy future.

Greentown Labs is a community of bold, passionate entrepreneurs creating game-changing energy technologies that transform the way we live, work, and play. Located in Somerville, Mass., and founded in 2011, the Greentown Labs Global Center for Cleantech Innovation is the largest cleantech incubator in the United States, operating a 100,000 sq. ft. campus that enables entrepreneurs to solve today’s biggest energy and environmental problems. Its mission is to enable a vibrant community of startups to realize their visions by providing access to the resources, labs, and funding they need to thrive. For more information, please visit greentownlabs.com or find us on Twitter, Facebook, or LinkedIn.

Delivery Excluding Liquor, Pharmacy And Tobacco Products etc. SuperQuickDelivery a super fast growing startup was created to give an awesome user experience to those with disabilities, certain conditions, elderly, certain geographical areas etc. A huge success even before any delivery we decided to expand our goal because everyone should enjoy our services. We came up with a catchy name and built around it. We know we are one of many BUT at least with our brand name you have a clue what we do We deliver food We are a super tiny delivery startup and growing with the help of all of you We have plans to expand to other markets We welcome advisers, VC's, investors, business owners, anyone with our best interest at heart. We would like to become the best at what we do

GreenLancer is a web-based startup that provides engineering support and deliverables to clients on all sides of the clean technology industry. Our services help contractors develop and design clean energy projects, we are their comprehensive technical backoffice. GreenLancer's post industrial model leverages best practices with powerful collaboration and automation strategies that improves qualtiy, accelerates delivery, and reduces soft costs associated with engineering and design.