Top Greentech Companies (1,801)

Skytree is a climate technology company based in Amsterdam that specializes in developing and manufacturing modular Direct Air Capture (DAC) systems. Their technology captures carbon dioxide from ambient air, providing a scalable, energy-efficient solution for carbon removal, greenhouse fertilization, and industrial applications. By engineering the CO₂ transition, Skytree enables businesses to transform captured carbon into a valuable, circular resource, supporting...

The Institute for Energy Economics and Financial Analysis (IEEFA) is an international nonprofit think tank focused on energy markets, trends, and policies. Its mission is to accelerate the transition to a diverse, sustainable, and profitable energy economy. The organization produces research and analysis on the financial and economic impacts of energy and the environment, focusing on the transition to cleaner...

Corteva Agriscience combines industry-leading innovations, high-touch customer engagement and operational execution to profitably deliver solutions for the world's most pressing agriculture challenges. Corteva generates advantaged market preference through its unique distribution strategy, together with its balanced and globally diverse mix of seed, crop protection, and digital products and services. With some of the most recognized brands in agriculture and a...

Western Landowners Alliance is a 501(c)(3) nonprofit that represents landowners and practitioners across the American West. It advances policies and practices to sustain working lands, connected landscapes, and native species. The organization provides landowners with a collective voice, peer network, and shared knowledge base, while promoting resilient, biologically diverse lands, prosperous rural livelihoods, and critical ecological services throughout the region.

Blue Tide Environmental develops and operates used motor oil recycling and re-refining facilities across North America. The company uses advanced hydroprocessing technology to convert used motor oil into high-quality paraffinic Group II+ base oils for the lubricants industry. Headquartered in Houston, it operates a major facility in Baytown, Texas, and emphasizes sustainable, circular solutions that recover value from waste oil.

The Federation of American Scientists (FAS) is an organization committed to using science and technology to benefit humanity. Acting as entrepreneurial change agents, they forge a better future through the nexus of science, technology, and talent. FAS drives impactful change by focusing on research and policy, particularly in areas like climate technology and innovation, to serve as a force for...

Rainmaker Technology Corporation develops next-generation cloud-seeding systems to address water scarcity and weather-related challenges. Its integrated solution combines advanced radar, unmanned aircraft, numerical weather modeling, a weather-awareness platform, and sustainable cloud seeds to enhance precipitation. The company aims to make freshwater more available to farms, ecosystems, and communities while supporting ecosystem restoration, aquifer recharge, and reduced wildfire risk over time.

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.

Meridian Waste is an environmental services company specializing in solid waste collection, transportation, recycling, disposal, and related trash services. It provides garbage pickup, recycling collection, waste disposal, and dumpster rentals for businesses, homes, and communities. The company emphasizes high-quality, reliable service and a respectful, caring approach to customers and employees, delivering clean and clear results through dependable waste-management operations for...

The Environmental Law & Policy Center is the Midwest's leading environmental legal advocacy organization that combines public interest litigation with policy advocacy to protect natural resources, advance climate solutions, and promote environmental justice.

WHAT WE DO We make filters and rotary contactor machines that capture and remove CO2, a greenhouse gas, from industrial emissions and the air. Our proven carbon capture technology is based on unique solid adsorbents — and it’s scalable, eco-friendly, and commercially available today. OUR UNIQUE APPROACH TO CARBON CAPTURE Based on environmentally friendly solid sorbent technology, our carbon capture...

Project Canary® is an environmental data and software company that collects, analyzes, quantifies, and visualizes asset-level environmental risk assessments and emission profiles. As a measurement, reporting, and verification (MRV) solution, the Canary SENSE Platform™ integrates a networked sensor canopy, including 3rd party sensor data and assessment scores, to provide independently verifiable climate attribute data for upstream, midstream, and CCS (carbon...

Recycled Plastics Industries, LLC manufactures high-quality poly lumber primarily from recycled high-density polyethylene. It provides custom colors and profiles for industrial partners, serving applications including outdoor furniture, marine construction, and residential and commercial building projects. Its U.S.-made products offer a durable, sustainable alternative to traditional lumber, with business-to-business sales and customized manufacturing solutions. It emphasizes quality, customer service, and material...

The New York Climate Exchange is a nonprofit consortium led by Stony Brook University that is developing a climate campus on Governors Island. It brings together 48 partners to accelerate climate solutions through research, education, an innovation hub, job training, public programs, and early-stage innovator support. Its mission is to address pressing local and global climate challenges while helping communities...

Sunday is a data-driven start-up based in Boulder, Colorado, with a mission to empower consumers to take better care of their land. In just three years, we’ve grown from an idea to a major industry disruptor offering 100,000+ homeowners a more sustainable, safer, and tailored experience in backyards across America With support from top-tier investors including BondCap, Sequoia, Forerunner, and Tusk,...

The Appalachian Mountain Club is the nation's oldest conservation and recreation organization, dedicated to protecting, enjoying, and understanding the outdoors through advocacy, education, and land stewardship.

Redtail Renewables is a leading developer and operator of renewable natural gas (RNG) facilities. The company utilizes innovative technologies and sustainable practices to harness the potential of renewable gas, converting waste feedstocks into clean energy for the transportation and utility industries. Based in Indianapolis, Redtail Renewables focuses on reducing greenhouse gas emissions and contributing to a cleaner environment while delivering...

CECO Environmental is a global leader in air quality and fluid handling serving the energy, industrial and other niche markets. Providing innovative technology and application expertise, CECO helps companies grow their business with safe, clean and more efficient solutions that help protect our shared environment. In regions around the world, CECO works to improve air quality, optimize the energy value...

Hertha Metals is redefining steelmaking with a breakthrough single-step process that uses gas reductants to convert iron ore into steel or high-purity iron, offering lower production costs, reduced emissions, and improved product quality compared to traditional methods.

Manus Bio is an industrial biotechnology company that uses engineered microbial cell factories, fermentation, and biomanufacturing to produce sustainable alternatives to ingredients, materials, and chemicals traditionally sourced from crops, petrochemicals, or animal products. Its portfolio includes monk fruit and stevia sweeteners, as well as bio-based flavor and fragrance ingredients, helping food, beverage, and other manufacturers improve supply security and reduce...