Top Washington Greentech Startups (27)
We believe that applying science is the only way to solve the climate crisis. Scientific expertise is critical to both effective and efficient carbon management – yet it can be hard to access outside of the academic and public sectors. New research and technologies emerge every day in our nascent industry and it can be difficult to know what actions to...
LevelTen Energy provides opportunities for smaller companies to invest in cleaner energy by offering renewable energy in amounts and prices proportionate to each company's needs.
Mast Reforestation is a climate tech company with a mission to make reforestation scalable. As bigger, hotter, and more frequent fires increasingly destroy forested land each year, Mast facilitates faster, more resilient forest regeneration. Mast provides vertically integrated reforestation services to get forest restoration projects up and running in weeks, not years. Services include seed collection, seedling cultivation, site preparation,...
Since 2005, Optimum Energy’s patented software and engineering expertise has helped customers reduce energy use in heating and cooling systems, the largest consumer of energy in buildings, by up to 50%.
Harvesting USB power from nature for the world! Our Personal Power Products are recharged by flowing water, wind, bikes, muscle power, donkey carts, sun, fire, or pretty much any source of energy to generate power for battery charging, LED lights, sensors, cameras and wireless transmitters. Over 1 billion people living off grid now need USB power f
Pterofin is a Seattle-based clean technology company developing innovative energy generation devices based on biomimicry. Our current focus is on a customer who at the village level faces high costs and inefficiencies in pumping water from deep wells using existing electric pumps or outdated wind turbines.
Creators of fenestra, a device which makes your windows smart and solves indoor air quality problems in a truly eco-friendly way. Our mission is to improve people’s health and help them save energy by automating an integral part of their home.
In a space that is often ignored, EvoEco is creating a set of Smart Waste Bins to empower enterprises' sustainability efforts, while also reducing their bottom line waste costs.
PotaVida's mission is to lower the cost of getting safe drinking water to people who need it. PotaVida lowers the cost of access to safe water in disasters and urban slums, and enables program evaluation by automating the collection and reporting of usage data.
We are reversing climate change. Nori is a platform that makes it easy to fund carbon removal from the atmosphere. A platform that allows businesses to help repair our planet by removing any carbon emissions they can’t yet avoid creating. We've started with supporting regenerative agriculture projects that store carbon in the soil.
Ag Energy Solutions converts various agricultural waste into synthetic gas and high-value natural carbon material.
Principle Power is a technology developer focused on the deep-water (greater than 40m) offshore wind energy market.
EnerG2 engineers advanced nano-structured materials for energy storage breakthroughs. We believe that efficient, reliable and cost-effective clean energy storage will be an essential element of the new energy economy.
HaloSource is a clean water technology company providing innovative solutions to the growing issue of water stress.
Clean Power Research® is advancing the energy transformation through cloud software that informs, streamlines and values energy-related decisions and processes for utilities, energy professionals and consumers. We’re focused on expanding our market reach and impact with new software technologies that help solve the energy industry’s problems. Recognized by BuiltIn Seattle as "Top 100 Best Places to Work in Seattle” and...
Reklaim, Inc. is a breakthrough technology company dedicated to transforming the way we manage scrap tires. The company is poised to launch a new sector of the Green Economy—one that promotes essential and substantive environmental and public health benefits and also delivers attractive economic returns to investors.
Scope 5 helps organizations improve environmental and economic impacts by tracking progress, revealing waste and driving action.
Oscilla Power, Inc. (OPI) is developing a suite of proprietary, high-impact renewable energy and energy harvesting solutions based on low cost, readily available magnetic materials.
Grow Plastics has a technology to create expanded bioplastics products. Our inline expansion process creates a sandwich core structure in plastics - our products resemble airplane parts at the microscopic level. The sandwich core structure lets us make products competitive to solid plastics using half the materials.






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