Top Greentech Companies (1,283)

Greenstar Recycling is one of America's recycling leaders.

Cirque is a renewable energy development company that develops, designs, finances renewable energy and generation power projects.

Graviky Labs pioneered the science and logistics of capturing and up-cycling air pollution into high-quality inks since 2013. We developed KAALINK, a filter-less technology which captures post-tailpipe carbon emissions before they enter the urban environment. The captured pollutants are then recycled into inks, AIR-INK.

At Sun Number, LLC, we’re focused on increasing the public’s awareness of the solar potential of buildings through our Sun Number ScoresTM. Founded in 2012, we are the recipient of the U.S. Department of Energy’s SunShot Incubator grant that enabled the development and initial deployment of Sun Number scores. Our goal is to increase solar installations by providing an easy-to-understand...

Gridmates brings peer to peer energy sharing in the first cloud platform to eliminate energy poverty | Connect with energy. We have a bright vision. Imagine a world where people everywhere could give a small portion of their available energy to others in need. Gridmates was founded to expand on and execute this vision and create the world's first cloud platform that...

Perma-Fix is an integrated nationwide network of treatment, storage, and disposal facilities.

Rising Sun Center for Opportunity is a mission-driven workforce-development organization serving the Bay Area and Central California. It builds career pathways for economic equity and climate resilience, preparing youth, women, and people in reentry for family-sustaining careers. Its programs include adult construction training and apprenticeship readiness, youth climate employment, and energy- and water-efficiency services that help households reduce environmental impact...

Spiritus develops direct air capture (DAC) technology to remove carbon dioxide from the atmosphere and make carbon removal more affordable and scalable. Its approach combines proprietary sorbent materials with a modular “Carbon Orchard” system and permanent geological sequestration. The company seeks to supply low-cost captured CO₂ for industrial decarbonization and energy applications, including enhanced oil recovery, while bringing large-scale carbon...

King Energy is a next-generation renewable energy company that specializes in bringing commercial-scale solar power to multi-tenant properties, such as shopping centers and office buildings. Utilizing an innovative financing model and advanced billing software, the company installs solar infrastructure at no cost to property owners, creating financial value for both owners and tenants while accelerating the adoption of clean energy...

Treatment and removal of Selenium, Mercury, Arsenic and Nitrate from water and FGD wastewater. Biological Treatment for Power Generation, Mining and Industry.

Cleartrace is an energy data and carbon accounting platform providing companies with the digital infrastructure to enable decision-making to mitigate environmental risk, prove their climate achievements and create new market opportunities within the evolving energy landscape. Through an advanced software platform developed by experts in the energy, data and banking sectors, ClearTrace delivers 100% traceable and verifiable energy and carbon...

Pure Blue is a nonprofit organization that collects, multiplies and shares resources to support the development and commercialization of water technology innovation.

Verifi is a global ClimateTech and ConstructionTech venture backed by Saint-Gobain, on a mission to transform how the world produces and delivers concrete — one of the planet’s most essential but carbon-intensive materials. Concrete touches every road, bridge, home, tunnel, and skyline. But for decades, the ready-mix industry has operated with limited data, high variability, and significant waste. Verifi changes that. We...

Earthly Labs provides technology solutions to capture, recover and re-use CO2 emissions from small-scale sources. To increase accessibility and impact, we offer support services, financing, and CO2 recycling to our customers worldwide.

Domtar makes products that people around the world rely on every day. We design, manufacture, market and distribute a wide variety of fiber-based products including communication, specialty and packaging papers, market pulp and airlaid nonwovens. With approximately 6,000 employees serving more than 50 countries around the world, Domtar is driven by a commitment to turn sustainable wood fiber into useful...

ThinkEco is an energy efficiency technology company specializing in demand response and big data applications. Its technology platform has been used by customers including Con Edison and Google to monitor and control electricity usage over a widespread geographical area. ThinkEco has been featured in major mass media channels and developed distribution relationships with national retailers such as Walmart and Best...

Envirocon, Inc. provides environmental remediation, ecological restoration, geotechnical construction, and demolition services for government and commercial clients nationwide.

Carbon Relay offers advanced data science, deep reinforcement learning, and augmented intelligence that can boost your data centers’ energy efficiency by 5X or more, while preserving uptime.

ContourGlobal develops, acquires, owns and operates power generation assets around the world, producing reliable energy responsibly. We are committed to growing in low and no-carbon technologies, and our mission is to create economic and social value through better operations, making the communities where we work better because we are there.

Hydrova is a climate tech startup based in Orange County, CA that is diverting waste from landfill while producing clean energy. In addition to winning grants from the EPA, MIT, and the 776 Foundation, Hydrova has raised funding from notable investors including 1517 Fund, 77, and Climate Capital. Hydrova’s innovative solutions help aluminum recyclers achieve their sustainability goals efficiently and...