Waste management companies

Kanadevia (カナデビア株式会社, formerly Hitachi Zosen) is a company that designs, manufactures, and constructs energy-from-waste water and sewage treatment plants.

Montauk Renewables (also known as Montauk Energy) is an integrated renewable energy company specializing in the management, recovery, and conversion of landfill methane into renewable energy.

Hera Group is a company that provides utility services.

Daiki Axis ( also known as 株式会社ダイキアクシスは) is a company that is engaged in designing, constructing, and maintaining wastewater treatment equipment.

Charah Solutions provides environmental and maintenance services to the power generation industry.

Sacyr is a company operating within the infrastructure, services, and industrial projects sectors.

Sembcorp Industries is a company that provides renewable energy and integrated urban development solutions.

PORR operates as a construction company.

Perma-Fix Environmental Services is a company that delivers solutions in nuclear and radiological services and waste management.

CK Infrastructure Holdings (CKI, 長江基建集團有限公司) is a company that specializes in infrastructure investments and developments.

Iren operates as a multi-utility company, which produces and distributes electricity, as well as distributes and sells natural gas.

China Everbright Environment Group is an investment holding company engaged in energy and infrastructure-related businesses