Waste-to-Energy solutions technology provides an advanced and safe means of waste disposal. A waste-to-energy plants (WtE facility) or an energy-from-waste (EfW) facility helps in turning municipal waste into energy—substantially decreasing greenhouse gas emissions, generating clean energy, and reducing the amount of waste entering landfills.

Common waste streams include:

• Biogas (from various feedstock streams)

• Biosolids and sludges (from municipal wastewater treatment processes)

• Commercial, residential, and institutional food wastes (especially disposed of in landfills)

• Manure slurries (from concentrated livestock operations)

• Organic wastes (from industrial operations)

The top waste-to-energy WtE companies are listed below alphabetical order, continue reading to know more:

Global Top Waste-to-Energy (WtE) Companies [2025]

Here are the world’s leading Waste to Energy technology companies (listed alphabetically):

Babcock & Wilcox Vølund A/S

Babcock & Wilcox Vølund A/S is a subsidiary of Babcock & Wilcox (B&W)—an industry leader in energy and environmental technologies.

Babcock & Wilcox provides mass-burn and RDF options when using waste as a combustion fuel. Furthermore, mass burning uses three major designs, including:

• A single-pass furnace

• Multi-pass furnace with a vertical convection pass

• Multi-pass furnace with a horizontal convection pass

Babcock & Wilcox also offers the following for WtE applications:

• DynaGrate® Combustion Grate

• Vølund® Combustion Grate

• DynaDischarger® Furnace Ash Extraction

• DynaFeeder® Waste Fuel Feeder System

Currently, Babcock & Wilcox Vølund is known as one of the world’s leading technology suppliers to convert household waste and biomass into heat and power.

Babcock & Wilcox Vølund A/S specializes in the following:

• Bioenergy

• Biomass

• CHP

• District Energy

• District Heating

Babcock & Wilcox Vølund A/S offers biomass energy systems, environmental protection and emission reduction products, gasification systems, and waste to energy systems.

Babcock & Wilcox Vølund has designed and built 560+ waste to energy lines worldwide and revolutionized waste disposal techniques.

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Ebara Corporation

Ebara Corporation (EBARA) is a leading manufacturer of environmental and industrial machinery.

EBARA provides a diverse range of waste recycling solutions and has installed nearly 400 waste treatment plants in Japan, with 80+ waste treatment plant operation and management contracts.

EBARA provides the following WtE services:

Stoker-type incineration system: The system is ideal for a wide range of applications—from small to large furnaces and from low-to-high calorific value of the waste.

Fluidized-bed incinerator system: This incinerator quickly and uniformly incinerates waste using the heat capacity of hot fluidizing sand. The system is also suitable for mixed incineration with night-soil sludge or sewage sludge.

Gasification technology: EBARA’s gasification systems make it possible to break down heterogeneous materials and waste plastics containing impurities and re-use them as raw materials in the production of chemical fibers, plastics, and rubber.

Boilers: EBARA’s internally circulating fluidized-bed boilers enable stable incineration of various fuels, such as biomass, coal, and discarded tires.

Hitachi Zosen Inova Steinmüller GmbH

Hitachi Zosen Corporation is a prominent industrial and engineering corporation with a wide range of offerings, including:

• Construction machinery

• Industrial machinery

• Precision machinery

• Steel mill process equipment

• Tunnel-boring machines

• Waste treatment plants

Hitachi Zosen Corporation has delivered a large number of WtE facilities, which burn waste and treat it hygienically, while producing electricity that is sent outside as an energy resource.

JFE Engineering Corporation

JFE Engineering Corporation (JFE Engineering) is a comprehensive engineering company delivering a broad range of products and services covering bridges & steel structures, industrial machinery, power generation & electricity, waste management plants, water & sewage, among others.

JFE Engineering provides the following under “Waste-to-Energy Plants”:

• Stoker incinerators

• Gasifying and melting furnace

• Ash-melting furnaces (electric resistance type)

• Ash-melting furnaces (plasma type)

• Refuse Derived Fuel (RDF) production system

• Recycling facilities

• Collected dust/ash dioxin decomposition systems

• Heavy metal stabilizer (chelating agent)

• Exhaust gas-activated carbon adsorption systems

JFE Engineering also offers WtE operation & maintenance. In addition, the company developed “JFE Hyper Remote” for providing 24-hour remote management, monitoring, and operation support for plants and speedy professional service by technical experts.

Kawasaki Heavy Industries, Ltd.

Founded by Sh?z? Kawasaki, Kawasaki Heavy Industries, Ltd. (KHI) is one of Japan’s three major heavy industrial manufacturers.

The world-renowned Japanese multinational corporation provides an advanced stoker system and a flue gas processing system, as well as a waste combustion system.

Kawasaki Advanced Stoker-type Incinerator

The parallel flow type incinerator enables low air ratio, high-temperature combustion, reduces energy loss, and minimizes the formation of toxic substances.

Flue Gas Processing System

Key features

• Spray gas cooler

• Bag filter

• Wet scrubber

• Activated carbon absorption tower

• Catalytic denitration reactor

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Keppel Seghers

Keppel Seghers is a member of the Keppel Infrastructure Group. Keppel Seghers is a leading provider of environmental solutions, delivering 450+ environmental projects across 25 countries.

Keppel Seghers provides a complete suite of solid waste management solutions, including:

Technology Package (Basic): In this model, the furnace block takes priority as an imported section of the WtE plant, while a local partner integrates the remaining of the plant.

A furnace block’s typical scope of work comprises basic and detailed engineering, technology supply, site guidance, process performance guarantees, and plant follow-up.

Process Island (Standard): This model is optimal when Keppel Seghers focuses on the process island scope, while the partner takes care of the power island.

Extended Process Island (Complete): This model is optimal when the partner does not have any power island experience.

A process island’s typical scope includes:

• Process and equipment design

• Technology supply of key process equipment (including SIGMATRIX Furnace block, the steam boiler system, and flue gas treatment)

• Site guidance (including erection supervision, start-up assistance, and commissioning services)

• Process guarantees

• Plant follow-up

Here are Keppel Seghers’ featured projects on solid waste management:

Martin GmbH

Founded by Josef Martin, Martin GmbH (MARTIN) is a globally leading supplier of plants for the thermal treatment of waste.  The company is a fourth-generation family-owned business that has grown into a well-known brand for sustainable treatment of waste.

MARTIN provides the following waste-to-energy services:

• General contractor

• Component lot supplier

• Engineering partner

• Combustion system service

• Spares coverage

• Modernization/optimization/modifications

• Shock Pulse Generator (SPG)

• Boiler service

• Research & Development

MARTIN’s waste-to-energy technologies include:

• Delivery

• Feeder

• Combustion system

• Reverse-acting grate Vario

• Horizontal grate

• Flue gas recirculation

• SYNCOM process

• SYNCOM-plus process

• Discharger

• SNCR process

• Energy recovery

• Flue gas cleaning system

• MICC (the MARTIN Infrared Combustion Control) system

• Dry discharge system

MHIEC

MHIEC (Mitsubishi Heavy Industries Environmental & Chemical Engineering Co., Ltd.) is a Group company of Mitsubishi Heavy Industries, Ltd. (MHI). MHIEC was established as a merger between MJK and REC.

MHIEC’s waste-to-energy solutions include:

Mitsubishi Stoker Waste-to-Energy System

Here are the major advantages of the Mitsubishi WtE system:

• Complete combustion (achieved by the reciprocating stoker)

• Easy and stable operation (achieved by the automatic combustion control)

• High reliable performance and long service life (proven by worldwide delivery records)

• Perfect air pollution control (achieved by the advanced flue gas treatment)

Advanced Flue Gas Treatment

The environment-friendly flue gas treatment system involves the following:

• Filtering reactor

• Dry system with filtering reactor

• Semi-dry system with filtering reactor

• Selective catalytic reactor

• Dry selective catalytic reactor NOx removal system (SCR)

• Hybrid bag filter

Mitsubishi MSW Gasification & Ash Melting System

Here are the major advantages of the Mitsubishi MSW (Municipal Solid Waste) Gasification & Ash Melting system:

• Only a small percent of residual remains as a result of the process.

• Provides high-level control for the emission of Dioxins.

• Enables recovery and recycling of metals (aluminium, iron, and steel).

• Provides Dioxins-free melted ash or molten slag for construction purposes.

Valmet

With 220+ years of industrial from cloth making to high-tech processes, Valmet is an established market leader with five business lines, including Automation Systems, Flow Control, Paper, Pulp and Energy, and Services.

Valmet’s energy solutions include sustainable waste-to-energy solutions, such as:

Valmet BFB Boiler

Valmet BFB Boiler uses the BFB (Bubbling Fluidized Bed) combustion technology to ensure high combustion efficiency and reliability, good controllability, low emissions, and wide fuel flexibility.

Valmet CFB Boiler

An advanced CFB (Circulating Fluidized Bed) boiler that combines high-efficiency combustion of different solid fuels with low emissions.

Gasifier

Valmet is a pioneer in waste gasification. As an industry leader in CFB gasification technologies and services, Valmet offers tailor-made gasification solutions to generate energy efficiently from biomass and waste.

Automation for Energy

Valmet provides automation and information management application expertise to diverse WtE plants using industrial waste, municipal waste (containing food waste, product packaging, paper, etc.), wood waste, or sludge.

For instance, the Valmet DNA automation system with scalable architecture covers the entire control and monitoring of all WtE plant processes.

Veolia Environment SA

Veolia Group is one of the largest waste-to-energy companies in the world. It has more than 90 Waste-to-Energy facilities. It has around 218,000 employees. Its services include water, waste, and energy management.

Veoila has several Wate-t-Energy plants across the world. In 2007, Shanghai Jiangqio and Guangzhoou Likeng were ranked first and fifth among the top 10 WTE plants listed by the Nations and China's National Development and Reform Commission. Veolia operates 63 household waste incineration plants and 53 non-hazardous waste landfills equipped with biogas recovery systems.

Wrapping Up

A waste-to-energy plant is a type of power plant known by other names, such as:

• Energy recovery plant

• Municipal waste incineration plant

• Resource recovery plant

• Trash-to-energy plant

Massive urbanization, limited land availability, and the steady growth in waste generation are some of the key factors responsible for the increasing adoption of WtE technologies (such as hydrogen-producing thermal gasification) in global waste management programs.

Converting waste into energy provides significant benefits, such as enhancing energy independence, reducing reliance on fossil fuels, and recovering valuable metals post-incineration, while generating renewable energy for homes and businesses.

Processing different waste materials (commercial, residential, and industrial) into fuel not only results in energy generation but also avoids the formation of biogas from landfills—commonly known as “landfill gas” or “LFG” typically containing carbon dioxide and methane.

According to the U.S. Environmental Protection Agency, “a typical waste-to-energy plant generates about 550 kilowatt hours (kWh) of energy per ton of waste.”

Waste-to-energy companies (WtE companies) have proven to be efficient and reliable providers of advanced waste-to-energy solutions and industrial services for safe and sustainable energy recovery.

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