Top Greentech Companies in Washington, DC (34)

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

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

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.

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.

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...

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.

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...

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...

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 –...

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...

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.

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.

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...

Arcadia is a climate technology company enabling a zero-carbon economy. By unlocking high-fidelity, global energy data for the first time, the Arc platform combines easy-to-use data and APIs under one roof to allow any company to act on its environmental impact and build the next generation of energy products and climate tech solutions. Arc democratizes access to data from more...

DC Green Bank is an independent instrumentality of the District of Columbia, established to increase private investment in sustainable projects including clean energy, transportation, and green infrastructure. By providing access to capital for residents, businesses, and community institutions, the bank aims to grow the clean economy and develop a more equitable, resilient, and sustainable District of Columbia.

Defenders of Wildlife is dedicated to the protection of all native animals and plants in their natural communities. For more than six decades, Defenders of Wildlife has been a leading force in the protection of wildlife and wild lands. We employ innovative, science-based approaches to protect imperiled wildlife, advocate for wildlife friendly climate and renewable energy policies and conserve and...

Greenlight America is a non-profit organization dedicated to environmental education and supporting local groups in building utility-scale clean energy projects.

Mabbett & Associates, Inc. is a leading provider of environmental planning and remediation, environmental compliance, health and safety, and engineering and infrastructure design services. They deliver comprehensive environmental, health and safety, and sustainable energy consulting and engineering design services to various clients.

HDR is an employee-owned design firm specializing in engineering, architecture, environmental and construction services. We’re ranked No. 6 among the world’s design firms and we’re the largest healthcare design firm. Led by the strength of our values and a culture shaped by employee ownership, we network with each other, build on each other’s contributions, and collaborate together to make great...