Top Washington Greentech Startups (31)

Port Townsend Paper Company produces sustainable Kraft pulp, Kraft Paper, containerboard, and specialty products by blending virgin and recycled fibers.

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.

Technosylva is the leading provider of wildfire and extreme weather risk mitigation solutions for electric utilities and fire agencies. Since 1997, we've operationalized wildfire science to support critical decisions that enhance daily operations and long-term planning. Our mission is to reduce the impact of wildfires and extreme weather through real-time insights and predictive modeling. Our solutions combine the best source data...

Botanical Designs is an innovative commercial landscaping company that designs, installs, and maintains interior and exterior commercial landscaping, living green walls, preserved moss art, indoor plant programs, artificial greenery, and seasonal holiday décor.

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%.

We're on a mission - starting with 100% reusable rockets.

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...

The asteroid mining company. Founded in 2009 by Eric Anderson and Peter H. Diamandis, M.D., Planetary Resources, Inc. is establishing a new paradigm for resource utilization that will bring the solar system within humanity’s economic sphere of influence by enabling low-cost robotic exploration and commercial development of asteroids.

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.

Drift is the only energy retailer that powers businesses with 100% green energy, 100% of the time. We seek to electrify the world with 100% green energy. All-day. Everyday. So we built Drift 100 to deliver an uninterrupted supply of green energy with our unique mix of locally-sourced solar, wind, and run-of-river hydro. Our technology matches every unit of green...

Membrion is a Seattle-based start-up company commercializing a new membrane technology developed at the University of Washington. High performance membranes are critical and expensive components of many technologies including water purification technologies and batteries.

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.

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.

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...

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.

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.

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.

Building novel solutions for clean air, water and energy with AI. Let's keep Earth our home forever. From sustainable fuels, to carbon capture, to harmful chemical removal from the environment, Orbital Materials develops and commercialises technologies that keep earth our home forever. At the core of our company is a foundation model for atoms, built by world experts in generative...