Top California Greentech Startups (121)
Revivn is a fully integrated hardware lifecycle solution, promoting global responsibility while providing IT with enterprise-class service and security. Working with companies like Instacart, Lyft & Teach for America we are changing the way companies view old technology with a new model that focuses on repurposing electronics. In partnering with Revivn, companies make the vital choice to responsibly retire, repurpose,...
Our mission is to drive rapid decarbonization in global transport and power sectors by intelligently connecting electric vehicles to the grid.
The U.S. Green Building Council California (USGBC California) is a member-based nonprofit advocating for a sustainable, resilient, and equitable built environment in California. Join our diverse community of developers, builders, owners, facility managers, architects, engineers, planners, technologists, green financiers, students, experts, advocates, and anyone interested in sustainability. Not part of the industry but passionate about sustainability? We welcome you! With over 100...
Lunar Energy was founded to make energy cleaner, safer, and more reliable. We build products for home electrification to move the world towards 100% clean energy.
ENFOS is an enterprise software environmental management solution for companies faced with liabilities associated with remediation and decommissioning projects. Founded in 2000, ENFOS serves customers in Oil and Gas, Transportation, Manufacturing, Chemicals and Energy/Utilities. Clients include BP, 7-Eleven, The U.S. Defense Logistics Agency, Dow, Ashland, ConocoPhillips, Sunoco, TravelCenters of America, Celanese Corp., Pacific Gas and Electric, and more.
Span is a startup focused on remodeling electric circuits for older homes, providing a digital alternative to traditional fuse boxes to help families better manage the flow of power to their appliances.
Naturally occurring minerals - alongside forests, soils, and the ocean - are one of our planet's most vital carbon sinks. Over geological timescales, carbon dioxide in the air and water chemically bind to these minerals and permanently turn to stone. Our technology enhances this natural process, called carbon mineralization, to help minerals absorb CO2 from the ambient air in days, rather...
Watershed is the enterprise climate platform. Leading companies like Walmart, Stripe, Spotify, Klarna, and Twitter use Watershed's software to measure, reduce, and report their carbon emissions. With its state-of-the-art carbon data engine, in-house climate experts, and marketplace of high-quality decarbonization initiatives, Watershed provides audit-grade emissions data to power business value creation, regulatory compliance, and global climate impact. Watershed’s advisors and...
At ECT2, we believe in giving the highest care in the customer journey experience. Our goal is to gain a deeper understanding of the desired needs, how we can grow a relationship with the company, and reach the best results to satisfy our customers. ECT2, a Montrose Environmental Group Company, provides water treatment services using cutting edge technology to remove...
2NDNATURE is a mission-driven SaaS company based in Santa Cruz, California, dedicated to helping municipalities and corporations build water resiliency. We combine peer-reviewed science with a robust geospatial platform to transform how stormwater is managed—moving from a regulatory burden to a vital community resource. Our flagship product, 2NFORM, provides a centralized system of record for dozens of cities nationwide to manage...
We believe textiles and consumer goods are valuable materials that should be completely regenerative the way basic materials are in nature. Our technology enables true circularity by unlocking the creation of decarbonized raw materials from end-of-life goods. cycora®, our high-quality regenerated polyester, is our first product that offers the same strength and versatility as virgin polyester, at less than half...
By design, Avnos is the world’s best shot to get to gigaton scale of carbon dioxide removal from direct air capture. We are a driven team of scientists, engineers and technical operators working together to solve one of the most fascinating and impactful problems the world has to solve: removing legacy carbon emissions in service of cooling the planet. We know...
Planted is redefining solar deployment by simplifying every step, from planning to power. By combining advanced software, high-density terrain-following arrays, and automated installation into one integrated platform, Planted has created a smarter way to develop and build utility-scale solar power plants. We’re expanding our team of ambitious, curious, and hands-on engineers and operators who want to accelerate the clean energy transition....
Utilities and energy technology providers rely on our analytics solutions to tell people exactly what they can expect to pay when making clean energy decisions, like changing to a time-of-use rate plan, buying an electric vehicle, installing solar and more. The result is less strain on the electric grid, happier customers and increased consumer investment in sustainable technologies. Working at...
Radiant is a clean energy startup building a nuclear microreactor. A climate-friendly alternative to diesel generators, Radiant's Kaleidos 1MW microreactor will be the world's first portable, zero-emissions power source that works anywhere. We plan to test our development reactor by 2026 and if successful, it will be the first new commercial reactor design to achieve a fueled test in over...
We help businesses, governments, and communities mitigate the risks of climate change through direct air capture. We are the first in market to offer permanent million-ton direct air capture installations – solutions that are safe, permanent, to benefit people and the planet
Inspire is a clean energy technology company on a mission to transform the way people access clean energy and accelerate the world toward a net-zero carbon future. Through a subscription model, Inspire allows customers to access 100% clean energy for one flat monthly price. Customers enjoy a seamless billing experience while supporting a more sustainable future.
Station A is a software company with a mission to automate clean energy development to enable a carbon-neutral future. Our platform provides clean energy buyers and providers the insight they need to take any building to zero carbon emissions. Our marketplace facilitates the origination, design, and execution of clean energy projects.
We are an engineering consulting and design firm specializing in custom electronics and end-to-end electronic systems. We develop cross-disciplined solutions and products to help solve some of the world’s most difficult problems by optimizing solutions beyond the first order. Our team members have industrial experience developing power converters, motor controllers, analog sensor drivers, RF amplifiers, antennas, mixed signal circuits, and embedded...

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