Top Greentech Companies in Washington, DC (36)

Rare drives social change for people and the planet. Across hundreds of communities in more than 60 countries, we have inspired and empowered millions of people to shift their behaviors and practices to protect the nature that sustains us all. Today, the natural resources we depend on are in danger. Climate change. Overfishing. Unsustainable land use. The extinction crisis. These...

The American Flood Coalition (AFC) is a bipartisan, member-driven nonprofit coalition focused on flood resilience and climate adaptation. It brings together elected officials, local leaders, military groups, businesses, and other partners to advance innovative, resilient, and equitable solutions at the local, state, and federal levels. Its mission is to help communities adapt to higher seas, stronger storms, and more frequent...

The Nature Conservancy is a global environmental nonprofit organization dedicated to conserving the lands and waters on which all life depends.

Vicinity Energy is a U.S.-based district energy provider operating systems that deliver steam, hot water, and chilled water to commercial properties and campuses. Its services support heating, cooling, humidification, and sterilization. The company is also advancing decarbonization through carbon-free eSteam™, produced with industrial-scale electric boilers, heat-pump complexes, and thermal storage, while serving customers across 12 U.S. cities throughout the United...

Ameresco, Inc. (NYSE: AMRC) is an independent, integrated, comprehensive energy efficiency and renewable energy company that is building a sustainable future with public organizations and private enterprise throughout North America and the United Kingdom. Through energy audits, innovative engineering, utility-scale solar farms and deep energy retrofits, Ameresco applies forward-thinking technology to the challenges of controlling emissions, enhancing energy security and...

Arcadia's clean energy tech platform gives everyone easy access to clean energy. Arcadia members have access to a mobile-optimized online dashboard where they can manage their account, track their account activity, and view their energy usage all in one place. Arcadia's digital transformation of the traditional energy utility gives individuals greater control over what energy they support, how much it...

Each year, millions of logs are wasted—chipped, burned, or landfilled because it’s easier than salvaging them. Cambium builds modern supply chains for the built environment, using technology to simplify sourcing, improve pricing, and deliver sustainable, traceable materials that create better outcomes for projects, people, and the planet. We provide next-generation, high-performance materials, including our flagship Carbon Smart™ Wood, all sourced and manufactured...

The World Resources Institute is a global research organization that works to improve people's lives, protect nature, and stabilize the climate by conducting research and informing policy.

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 –...

Community Solar: The Easiest Way to Tap into Clean Energy We’re bringing clean energy to homeowners and communities everywhere, and helping them save up to 15% on electricity costs without installing rooftop solar panels.

The U.S. Energy Foundation helps build a strong, clean energy economy. Its mission is to secure a clean and equitable energy future to tackle the climate crisis, envisioning a healthy, safe, and equitable economy powered by clean energy.

ACORE is a national nonprofit organization that unites finance, policy, and technology to accelerate the transition to a clean energy economy. It promotes investment in American clean energy infrastructure, development, and innovation.

You can’t fix what you can’t see. Planet believes in using space to help life on Earth. We design, build, and operate a constellation of earth-imaging satellites that deliver a dataset of geospatial imagery used to help solve the worlds most critical problems. Planet is passionate about building a community of diversity, belonging and inclusion.

Home Energy Medics is a full-service home performance company founded in 2009 and based in Arlington, VA. It conducts home energy audits and delivers home performance improvements—insulation and air sealing, duct sealing, HVAC, windows and doors, noise reduction, and whole-home electrification—to improve home comfort, health, and energy efficiency while lowering heating and cooling costs. Serving Northern Virginia, Maryland, and metro...

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...

CleanChoice Energy is a clean energy supplier whose mission is to make 100% renewable energy available to everyone.

The Electrification Coalition is a nonpartisan nonprofit that works to speed the widespread adoption of light-, medium-, and heavy-duty electric vehicles, addressing economic, public-health, and national-security challenges tied to U.S. dependence on oil. It advances this mission through policy development and advocacy, consumer education, fleet and freight electrification, bipartisan coalition-building, charging-infrastructure planning, and EV supply-chain development, working across federal, state,...

American Council for an Energy-Efficient Economy (ACEEE) is a nonprofit research organization focused on advancing energy efficiency. Through research, education, and advocacy, it develops policies, programs, and practical solutions that reduce energy waste, strengthen economic prosperity and energy security, and protect the environment. Its work supports more efficient energy use by governments, businesses, utilities, and consumers across the United States.

Since its start in 1920, the National Association of State Foresters (NASF) has served as a leading authority on forest management in the United States. NASF’s members are the primary delivery system for forest management activities nationwide. They conserve, enhance, and protect state and private forests, which encompass nearly two-thirds of the nation’s forests, and are responsible for wildfire protection...

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...