Top Washington, DC Energy Companies (57)

Energy and Defence systems, purpose-engineered from first principles. 800+ installations, 25+ countries, 30+ years — designed and built entirely in-house.

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...

Cypress Creek Renewables believes solar energy makes the world safer, cleaner and better. Our team solves problems to successfully develop, build and operate solar facilities across the United States. With 12 gigawatts of solar energy developed in more than a dozen states, Cypress Creek Renewables is one of the country’s leading solar companies.

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.

WEG is a global electric-electronic equipment company and one of the largest electric motor manufacturers in the world, operating in the capital goods sector with solutions in electric machines, automation, and paints for various industries.

EQT Corporation is a leading independent natural gas producer with an evolutionary focus on our future. EQT has operations in Pennsylvania, West Virginia and Ohio and is dedicated to responsibly developing our world-class asset base in the core of the Appalachian Basin. While we are currently the largest producer of natural gas in the United States, we know being the...

Venture Global LNG is a long-term, low-cost producer of North American liquefied natural gas (LNG). Our two export facilities, Calcasieu Pass and Plaquemines LNG, will supply the world’s growing demand for low-cost, clean and reliable North American energy.

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...

SC&A is a small business that offers energy and environmental consulting to federal, state, and local government agencies and the private sector. Our expertise includes radiological and nuclear safety and security, climate adaptation, air quality, and emergency management and preparedness.

Dev Technology is an information technology services company delivering mission-critical applications and systems that protect and serve American citizens. We are an experienced small business that specializes in application and system development efforts, database consulting, and infrastructure management implementations. Our customers include the Departments of Homeland Security, Justice, Agriculture, Defense, Energy, and Treasury. Dev Technology’s core competencies include web-based application...

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.

Altamira is your trusted partner in consulting, engineering, and field service support. The combination of our owner’s mentality, commitment to hearing your needs and concerns, and delivering with our proven processes help ensure project success. With our regulatory expertise and agile approach, we create working relationships that value compliance and deliver desirable outcomes that bolster your bottom line.

POET is the world's largest producer of ethanol and a leader in bioprocessing, focused on renewable energy and agricultural products.

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

Inspiration is the first purpose-built EV solutions company. Our mission is to accelerate the electrification of transportation by partnering with fleet businesses to finance vehicles and deliver turnkey charging solutions to enable the rapid deployment of reliable, low-cost, zero-emissions EV fleets. Acting as a partner and system integrator, Inspiration designs and implements a custom solution that ensures every fleet electrification...

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.

Zeno Power is the leading developer of nuclear batteries that provide reliable, clean energy in frontier environments. By harnessing the heat from radioisotopes, Zeno’s batteries power critical missions on Earth, in space, and at sea.

Kaluza is an energy software company powering the future of energy. From revolutionising billing to smart electric vehicle charging, Kaluza’s technology is empowering some of the biggest energy suppliers to better serve millions of customers. Its real-time cloud platform transforms supplier operations, reducing cost to serve and boosting customer engagement. Powered by Kaluza, suppliers can invest in innovating for tomorrow’s...

Deep Isolation offers an innovative solution to secure and dispose of spent nuclear fuel from commercial nuclear reactors. Our horizontal drill hole technology offers both safety and low cost. While the drilling technology is standard, Deep Isolation is the first company proposing to use this method for the safe isolation of spent nuclear fuel under a billion tons of rock...

Sparkfund powers organizations by providing access to the latest energy technology in a new and better way—through a simple monthly subscription model backed by a no risk guarantee. We partner with contractors, ESCOs, manufacturers, utilities, and energy retailers to deliver the Sparkfund Technology Subscription, transforming how businesses implement energy technology. Sparkfund seeks to create positive change for the world by...