Top California Greentech Startups (155)

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,...

Aro Homes is a tech-enabled homebuilding startup that designs and builds carbon-negative, precision-engineered homes faster and more cost-effectively than traditional methods, aiming to accelerate progress toward a carbon-neutral future.

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...

Sustainable spending made easy. Buy less. Buy better. Take climate action.

Ocean Legacy Foundation is a Canadian-based, international non-profit organization headquartered in Richmond, British Columbia, dedicated to ending ocean plastic pollution. It develops and implements plastic pollution emergency response programs through its four-pillar EPIC approach: Education, Policy, Infrastructure and Cleanup. It operates the Plastic Pollution Emergency Response Facility, which recovers ocean and shoreline plastics and turns them into Legacy Plastic recycled...

Global Green USA is a nonprofit environmental organization and the American affiliate of Green Cross International. It supports underserved communities through programs that educate and empower residents to address climate change, while advancing green cities, neighborhoods, schools, affordable housing, climate resilience, and environmental justice. The organization also partners with governments, policymakers, and corporations on sustainability, net-zero planning, reforestation, and reducing...

ChargerHelp! pioneers the future of EV charging with our innovative Reliability as a Service (RaaS) solution. Addressing core challenges in EVSE Operation & Maintenance (O&M), our data-driven approach maximizes charger uptime. Partnering with industry leaders and emphasizing community empowerment, we're committed to elevating EVSE infrastructure reliability. Let's redefine the future of EV charging together. 🚗⚡

Nevoya is a next-generation electric trucking carrier transforming logistics through AI-native operations, offering zero-emissions freight transport services with electric trucks and optimization technology.

The Apparel Impact Institute is dedicated to transforming the apparel and footwear industry by identifying, funding, scaling, and measuring proven solutions and programs that decrease carbon emissions and minimize negative environmental impact.

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...

Silicon Valley Clean Energy (SVCE) is a community-owned agency providing carbon-free electricity to a majority of Santa Clara County communities, motivated by climate action.

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.

The Napa County Resource Conservation District (Napa RCD) provides environmental expertise to help the community conserve land, water, and habitat. Since 1945, it has served as a trusted partner for Napa County's diverse population, including agricultural producers and landowners. Its mission is to promote responsible watershed management through voluntary community stewardship and technical assistance to ensure a resilient and sustainable...

We are a green environmental testing and consulting firm, dedicated to providing the highest level of customer service available in the industry. Contact our office at (858) 433-3290 or email us at [email protected] to schedule testing!

Trevi Systems is a Sonoma County, California technology developer specializing in low-energy, sustainable forward osmosis water purification for desalinating salt and brackish water and treating industrial and municipal wastewater. The company also provides sustainable brine-concentration solutions for minimum- and zero-liquid-discharge applications, enabling resource recovery across multiple markets and industries. Its systems are designed to reduce energy use and support renewable...

Climate Policy Initiative (CPI) is an independent nonprofit analysis and advisory organization focused on climate finance and policy. It helps governments, businesses, and financial institutions drive economic growth while addressing climate change. Founded to support nations building low-carbon economies, CPI develops and applies research on climate, energy, and land-use policies, helping decision-makers design and implement effective solutions worldwide through evidence-based...

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...

Lilac Solutions develops commercially ready direct lithium extraction technology for brine resources. Its proprietary ion-exchange materials, equipment configurations, and process engineering help lithium producers recover lithium faster, more affordably, and with lower environmental impact than conventional evaporation-based methods. The company designs scalable solutions for diverse brines, supporting expanded lithium supply for global electrification while reducing freshwater use and land disturbance.

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.

Eden is the full-stack solution for office management. Our mission is to create a better place to work, for everyone. Our services include office cleaning, supply stocking, IT support, handyman services, and taskers. Each Eden client has a dedicated account lead to ensure an insanely great experience. Eden is venture-backed from some of the best in