Top Washington Greentech Startups (36)

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.

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

Herrera Environmental Consultants is an employee-owned science, engineering, planning, and design consulting firm. It develops holistic, sustainable, and nature-based infrastructure solutions that address environmental and infrastructure challenges. The company serves cities, counties, state and federal agencies, Tribes, nonprofits, and private clients across the western United States and western Canada, combining interdisciplinary expertise to create scientifically rigorous, cost-effective outcomes that benefit...

Earth is the national leader in soil transformation: it’s a gentle, natural process that transforms a body into soil that families can scatter, plant, or share. Our mission is to give families the easiest way to make arrangements, and to heal our planet in the process.

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

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...

USAgain is a for-profit textile recycling company that collects reusable clothes, shoes, and household textiles to divert them from landfills. Through partnerships with schools, businesses, and municipalities, they operate a wide network of collection bins and 'TreeMachines' to extend the life cycle of clothing. Their mission is to be a global leader in secondhand clothing, creating sustainable value for people...

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.

Evergreen Action is a U.S.-based nonprofit founded in 2020 that leads a national mobilization to defeat the climate crisis. The organization builds ambitious, actionable state and federal climate policy roadmaps to accelerate a just, inclusive clean-energy transition that creates jobs and strengthens communities. Evergreen focuses on policy design, advocacy, and organizing to drive large-scale public investments in clean energy and...

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%.

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...

Ag Energy Solutions converts various agricultural waste into synthetic gas and high-value natural carbon material.

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,...

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.

The International Living Future Institute is an environmental NGO committed to catalyzing the transformation toward communities that are socially just, culturally rich, and ecologically restorative.

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.

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.

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.

Scope 5 helps organizations improve environmental and economic impacts by tracking progress, revealing waste and driving action.