Boilers are the heart of many industries. They produce steam and hot water for power plants, refineries, textile mills, paper mills, chemical factories, sugar plants, food processing units, pharma plants, hospitals, hotels and large commercial buildings. Without reliable boilers, many industrial processes cannot run smoothly.
India has a strong boiler manufacturing industry because the country has large demand from power, process industries, infrastructure, sugar, cement, chemicals, textiles and renewable-energy projects. Some companies make huge utility boilers for power plants, while others focus on industrial steam boilers, biomass boilers, waste heat recovery boilers, electric boilers and boiler efficiency systems.
For this 2026 list, the ranking is based on manufacturing scale, product range, market reputation, industrial presence, project experience, export reach and overall importance in India’s boiler sector. Exact production numbers are not publicly available for every company, so this should be read as an industry-based ranking, not a government production ranking.
Now let’s check out the top 10 boiler manufacturers in India in 2026.
1. Thermax Limited
Thermax is one of India’s strongest boiler manufacturers, known for industrial boilers, clean energy and heating solutions.
Thermax is based in Pune and is one of the most respected names in India’s energy and environment engineering sector. The company started its journey as Wanson India, a package-boiler manufacturer, and later expanded into cogeneration, air pollution control, water treatment and other industrial solutions.
Thermax makes different types of boilers and heating systems for industries such as food, textile, cement, chemicals, pharma, refineries and power. Its product strength includes steam boilers, electric boilers, waste heat recovery systems, large boilers and boiler-efficiency solutions. Recent reports also mention demand for its electric boilers, heat pumps and large-boiler-related industrial infrastructure business, showing its continued importance in the market.
2. Bharat Heavy Electricals Limited – BHEL
BHEL is India’s biggest public-sector power equipment company and a major name in large utility boilers.
BHEL is one of India’s most important heavy engineering companies. It is owned by the Government of India and has a major role in thermal power, nuclear power, hydropower, transmission, railways, defence and industrial equipment. Its power-generation equipment business includes boilers and turbines for large power projects.
BHEL’s Trichy unit is especially famous for boiler manufacturing. A 2026 report on the BHEL Trichy complex mentioned boiler production, advanced ultra-supercritical technology and nuclear steam-generator-related work, showing the company’s continuing strength in advanced boiler and steam equipment.
3. ISGEC Heavy Engineering Limited
ISGEC is a major Indian heavy engineering company with a strong position in industrial boilers and EPC projects.
ISGEC Heavy Engineering is based in Noida and has a long history in Indian engineering. The company deals in industrial boilers, process equipment, EPC projects, sugar plants, air pollution control equipment, presses and other heavy engineering products.
ISGEC is especially strong in industrial boilers for sugar, distillery, chemicals, power, paper, cement and process industries. The company has manufacturing and design operations across several Indian states and has supplied products to many international markets. Its boiler experience and heavy fabrication strength make it one of India’s top boiler manufacturers.
4. Forbes Marshall
Forbes Marshall is a trusted name in steam engineering, boilers and boiler-efficiency systems.
Forbes Marshall is a Pune-based engineering company known for steam engineering, control instrumentation and process efficiency. Its official product list includes boilers, boiler efficiency systems, steam systems, control valves, flow meters, emission monitoring and automation products.
The company is especially strong in process industries where steam is used every day. Forbes Marshall does not only sell boilers; it also helps factories improve steam use, reduce fuel cost, monitor boiler performance and improve plant efficiency. That makes it an important name for textile, food, pharma, dairy, chemical and manufacturing industries.
5. Cheema Boilers Limited
Cheema Boilers is a strong Indian boiler manufacturer known for biomass, industrial and power-sector boiler solutions.
Cheema Boilers Limited, often called CBL, is one of the well-known boiler manufacturers in India. The company is strongly associated with industrial boilers, biomass-fired boilers, power boilers, cogeneration systems and steam-generation solutions for process industries.
CBL is especially important in sugar, rice, paper, chemical, textile and agro-based industries, where biomass and solid-fuel boilers are widely used. Its strength lies in designing boilers that can handle different fuels such as rice husk, bagasse, coal, biomass and other industrial fuels.
6. Walchandnagar Industries Limited
Walchandnagar Industries is an old Indian heavy engineering company with experience in boilers, power and process equipment.
Walchandnagar Industries is a Maharashtra-based heavy engineering company with a long industrial history. It is connected with energy, defence, aerospace, nuclear power, industrial machinery, EPC projects and boilers.
The company’s strength is in heavy engineering and project-based manufacturing. In the boiler sector, it is linked with power-generation and industrial steam applications. Walchandnagar may not be as widely visible in small industrial boiler markets, but its engineering background keeps it important in the larger heavy-equipment space.
7. TPP Boilers Pvt. Ltd.
TPP Boilers is a known Indian boiler manufacturer serving process industries and industrial steam users.
TPP Boilers is an important name in India’s industrial boiler manufacturing segment. The company is connected with steam boilers, thermic fluid heaters, pressure vessels, boiler components, pollution-control equipment and related engineering products.
It mainly serves industries such as textile, food processing, chemicals, paper, packaging, pharma, rubber and general manufacturing. TPP Boilers is included in this list because it has a focused presence in industrial boiler supply, where reliability, fuel efficiency and after-sales support matter a lot.
8. Industrial Boilers Ltd.
Industrial Boilers Ltd. is one of India’s established boiler companies with a long presence in steam-generation equipment.
Industrial Boilers Ltd., also known as IBL, is a notable Indian boiler manufacturer. The company is associated with steam boilers, hot water generators, waste heat recovery boilers, fluidized bed boilers, pressure vessels and boiler-house equipment.
IBL has served industries such as textiles, paper, chemicals, food, pharma, rubber, plywood and engineering. Its long presence in industrial boiler manufacturing gives it a strong place among India’s practical boiler suppliers.
9. Transparent Energy Systems Pvt. Ltd.
Transparent Energy Systems is known for energy-efficient boiler, waste heat recovery and thermal engineering solutions.
Transparent Energy Systems is a Pune-based thermal engineering company. It works in areas such as waste heat recovery, industrial boilers, thermic fluid heaters, biomass systems, energy recovery and clean thermal solutions.
The company is important for industries that want to reduce fuel cost and recover waste heat from process streams. Its solutions are useful in chemical, steel, cement, glass, power, pharma and other process industries where heat recovery can make a big difference.
10. Rakhoh Boilers
Rakhoh Boilers completes the list as a focused Indian manufacturer of industrial steam boilers and boiler accessories.
Rakhoh Boilers is based in Maharashtra and is known in the industrial steam boiler segment. The company offers steam boilers, waste heat recovery boilers, boiler accessories, hot water generators and related boiler-house solutions.
Rakhoh serves industries such as food processing, pharma, chemical, textile, packaging, dairy and engineering. It may not have the same scale as Thermax, BHEL or ISGEC, but it has a visible position in India’s mid-sized industrial boiler market.
Final Words
India’s boiler manufacturing industry in 2026 is led by strong names such as Thermax, BHEL, ISGEC, Forbes Marshall and Cheema Boilers. These companies cover everything from large power boilers to industrial steam systems and energy-efficiency solutions. Walchandnagar Industries, TPP Boilers, Industrial Boilers Ltd., Transparent Energy Systems and Rakhoh Boilers also play important roles in India’s process-industry and industrial-boiler market. As Indian manufacturing, power, food processing, chemicals and clean-energy systems keep growing, boiler manufacturers will remain important for safe, efficient and reliable industrial operations.
