Top Maryland Greentech Companies (28)

Civic Works strengthens Baltimore communities through education, skills development, and community service, focusing on job training, home repairs, and green initiatives.

X-energy is delivering the next generation of carbon-free energy by reinventing nuclear power. We believe in leaving a cleaner planet for our children and grandchildren, while continuing to provide sufficient and affordable power to sustain growing populations around the world. That is why we have reinvented nuclear power, with a unique combination of proven technologies and new innovations, to meet our...

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.

We harness the power of proven technologies to create sustainable solutions for the natural waste challenges generated by civic and commercial growth.

ERM (Environmental Resources Management) is a global sustainability consultancy that helps organizations navigate environmental, social, and governance (ESG) challenges. ERM provides advisory and technical services across sectors—energy, mining, infrastructure, manufacturing and finance—supporting decarbonization, regulatory compliance, risk management, and sustainability strategy and implementation through technical, engineering and strategic consulting worldwide.

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...

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!

Resource Environmental Solutions LLC (RES) is a national operating company focused on restoring a resilient earth for a modern world, project by project. As the nation’s largest ecological restoration company, RES supports the public and private sector with solutions for environmental mitigation, stormwater and water quality, and climate and flooding resilience. RES has a unique operating model for delivering ecological...

CECO Environmental is a global leader in air quality and fluid handling serving the energy, industrial and other niche markets. Providing innovative technology and application expertise, CECO helps companies grow their business with safe, clean and more efficient solutions that help protect our shared environment. In regions around the world, CECO works to improve air quality, optimize the energy value...

Triumvirate Environmental Inc. provides sustainable environmental solutions to leading companies in the Life Sciences, Healthcare, Education, and Industrial markets. Key areas of expertise are in Waste Management & Disposal, COVID-19 Decontamination Services, EHS Consulting Services, and Lab & Facility Services. Our highly trained experts help organizations reduce waste, save money, stay safe and compliant, manage risk, and protect their reputation....

WIN Waste Innovations is a vertically integrated waste management company providing essential solutions to customers and communities. With 50 strategically located collection, transfer, and disposal assets, including waste-to-energy facilities, the company processes over 11 million tons of waste annually. They convert 6.7 million tons into clean, renewable energy that powers 340,000 homes, focusing on environmental preservation for future generations while...

RoadRunner Recycling provides tech-powered solutions for commercial waste recycling which helps businesses lower recurring costs.

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.

National Park Trust is a non-profit dedicated to the protection of our national parks. The Park Trust preserves parks today and creates park stewards for tomorrow by acquiring the missing pieces of our national parks and building a pipeline of future caretakers of our public lands and waters by getting kids to parks. Since 1983, the Park Trust has completed...

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...

Coho is a global climate adviser, an ERM Group company, dedicated to helping clients navigate complexity and take ambitious steps on their climate, energy, and water resiliency journey. They provide deep market insight, analytical problem-solving, and change management expertise.

Elysian Energy is a locally owned residential energy-efficiency and home-performance company serving homeowners in Washington, DC, Maryland, and Virginia. It provides home energy audits, whole-home assessments, efficiency upgrades, weatherization, HVAC and heat-pump services, electrification roadmaps, EV chargers, and indoor-air-quality solutions. The company helps customers improve comfort and health while lowering energy bills and carbon footprints, and assists with available utility...

EA is a 100% Employee Stock Ownership Plan (ESOP)-owned public benefit corporation that provides environmental, compliance, natural resources, and infrastructure engineering and management solutions to a wide range of public and private sector clients. Headquartered in Hunt Valley, Maryland, EA employs more than 575 professionals through a network of over 25 commercial offices across the continental United States, as well...

Harsco Corporation (NYSE: HSC) solves the most complex environmental challenges worldwide, from properly disposing of medical waste to repurposing slag. Through thoughtful partnerships with customers around the globe, our recycling and repurposing services keep millions of tons of material out of landfills and incinerators. Our Clean Earth division is one of the largest providers of environmental and regulated waste management...

NextEra Energy, Inc. (NYSE: NEE) is a leading clean energy company headquartered in Juno Beach, Florida. NextEra Energy owns two electric companies in Florida: Florida Power & Light Company, which serves more than five million customer accounts in Florida and is the largest rate-regulated electric utility in the United States as measured by retail electricity produced and sold; and Gulf...