Top Washington Greentech Companies (47)

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.

Headquartered in Walnut Creek, Calif., Brown and Caldwell is an employee-owned firm with 2,100+ professionals serving clients locally and globally from 52 locations. We are the largest engineering and construction firm solely focused on the U.S. water and environmental sectors. Our creative designs and progressive solutions have helped municipal, federal and private organizations overcome their most complex environmental challenges. We offer...

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...

Zipcar is the world’s leading car-sharing network, found in urban areas and university campuses in more than 500 cities and towns. Our team is smart, creative and fun, and we’re driven by a mission – to enable simple and responsible urban living. Being a Zipcar member gives you easy access to a car nearby without all the cost and hassle...

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

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.

Commercial Cleaning Service That Shines There’s more to janitorial services than a mop hitting the floor. Environmental concerns and new technologies have taken commercial cleaning service to a new level. ABM Janitorial Services combines today’s technology with more than 100 years of innovative experience. That means we can offer you a full range of solutions based on your individual needs –...

SavATree is a full-service tree, shrub and lawn care company specializing in green options for landscape care. Our winning formula combines cutting edge technology, patented ingredients with customer passion - delivered by the best and brightest "Green Team"​ in the industry!

Clean Harbors is North America's leading provider of environmental and industrial services, offering hazardous and non-hazardous waste management, emergency spill response, industrial cleaning, and recycling services.

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,...

Headquartered in Seattle, Washington, Anchor QEA is a nationally recognized environmental science and engineering consulting firm specializing in aquatic, shoreline, and water resource projects, including coastal and flood resiliency. With more than 500 employees in 26 offices across the United States, Anchor QEA works with public and private sector clients to address environmental issues at some of the most challenging sites...

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...

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.

e-Stewards (www.e-Stewards.org) is an initiative to foster greater responsibility for electronic waste management. It was created by the Basel Action Network (www.ban.org). At its core, is the e-Stewards Standard for Responsible Recycling and Reuse of Electronic Equipment which is the world's highest standard of achievement for electronics recycler

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.

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.

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.

Principle Power is a technology developer focused on the deep-water (greater than 40m) offshore wind energy market.