Top California Greentech Startups (131)
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,...
Over millions of years, silicate rock weathering has regulated Earth’s climate. By crushing silicate rocks and spreading them on agricultural soils - an approach called Enhanced Rock Weathering (ERW) - we can accelerate Earth’s natural process into a solution capable of addressing the urgency of climate change. Existing agricultural and silicate rock sites - namely 5,000+ global silicate rock quarries surrounded...
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...
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.
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.
At Valar Atomics, we're redefining what's possible in energy. Our mission is to make clean, high-temperature nuclear power scalable—unlocking abundant energy for industry, hydrogen, and next-generation manufacturing. We are a team of builders, engineers, and operators who believe nuclear energy should be fast to deploy, factory-made, and built for the real world. Our first pilot plant in Orangeville, Utah will...
Aurora is creating a future of solar for all. We’re putting the power of data and technology into the hands of every solar professional to make solar adoption simple and predictable. Our cloud-based platform uses data, automation, and AI to streamline workflows and grow solar businesses faster. As a fast-growing Series D company, we’re disrupting the clean energy industry and...
Range Energy focuses on the electrification of commercial transportation, operating within the clean energy and transportation sectors. The company offers electric trailers and solutions that aim to reduce diesel consumption and emissions in heavy trucking while also extending the range of zero-emission vehicles. Its products are primarily targeted towards the commercial transportation industry. It was founded in 2021 and is...
Glydways, Inc. is an American transportation technology and clean energy company based in South San Francisco, CA. The company specializes in the design, manufacture, installation and operation of affordable autonomous transportation for low, medium and extremely high capacity needs. Founded in 2016 by engineer and entrepreneur Mark Seeger, the company was started with the goal of providing affordable mobility for...
Founded to meet an opportunity to fundamentally change how society approaches health in the built environment, R-Zero develops the most effective and innovative technologies to create safer, healthier buildings for all. While most risk mitigation tactics require human behavior changes, we’re using technology to eliminate “decision-making” from the process, and automate better health outcomes in the built environment. Combining space...
Essel specializes in ensuring your projects success by managing the ideal outcome in 3 key areas: Workforce Augmentation: For the AEC & Emergency Response sectors - we make sure you have the workforce to execute on your project. Whether it be high volume environmental technicians or subject matter experts - we have the resources to provide the workforce that will...
Mango Materials' technology uses waste biogas (methane) to produce poly-hydroxyalkanoate (PHA) powder, a valuable biopolymer that is converted into a variety of eco-friendly, plastic products such as cosmetic packaging and a polyester replacement for textiles. Due to a rising preference for green products, demand for biodegradable and non petroleum-based plastics is growing rapidly. Our climate positive technology transforms greenhouse gas...
FieldKit is an open-source software and hardware platform (environmental sensors, app, and FieldKit.org website) that allows individuals and organizations to collect and share field-based research data and tell stories through interactive visualizations. Designed to be easy to deploy customizable, FieldKit can be adapted to meet the needs of diverse research teams, from biology and ecology to marine and environmental sciences,...
WRA, Inc. is an employee-owned environmental consultancy firm composed of planners, engineers, and scientists. They specialize in navigating complex projects involving wildlands, parks, community spaces, and infrastructure. Their mission is to cultivate a sustainable future where people and the environment thrive, aiming to leave lands better than they found them through responsible project management and long-standing community relationships.
SINAI Technologies Inc. is mitigating climate change by enabling more intelligent emission measurement, scenario analysis and decarbonization strategy tools for organizations. We are the world’s leading Decarbonization-as-a-Service platform to measure, analyze, reduce and price emissions, using science-based methodologies. #decarbonize #carbonpricing
Renewable Properties specializes in developing and investing in small-scale utility and commercial solar energy projects throughout the United States. Led by experienced renewable energy professionals with development and investment experience, we work closely with communities, developers, landowners, utilities and financial institutions looking to invest in large solar energy systems. The Renewable Properties’ team has deep connections throughout the commercial solar energy...
At NES, we partner with clients to provide comprehensive, customer-focused Environmental, Health, and Safety (EH&S) consulting and education solutions that ensure regulatory compliance while protecting your employees, the environment, and your bottom line.
Reli. is a family-owned business built around strong values and a passion to serve our customers. Our drive stemmed from seeing a need for custom-tailored quality products at wholesale prices & quantities. We wanted to be able to put quality first and still be able to provide honest pricing. With our global and domestic operations, we have the freedom to center each and every decision around our valued...
Earth is the national leader in soil transformation: it’s a gentle, natural process that transforms a body into soil that families can scatter, plant, or share. Our mission is to give families the easiest way to make arrangements, and to heal our planet in the process.

_1.jpg)









.png)





















