This selection of large environmental services companies in Asia includes major players in various industrial sectors. Hitachi, for instance, is a technology and innovation company focused on sustainable social infrastructure, while Megha Engineering and Infrastructures Ltd specializes in engineering, construction, and water management. Other prominent firms include SAMSUNG E&A in engineering and construction, and Sembcorp Industries Ltd, a provider of sustainable energy solutions.
The companies listed exhibit a diverse range of activities beyond traditional environmental services. Many are involved in heavy industry, infrastructure development, and manufacturing. A notable pattern is the strong presence of Indian companies, with headquarters in cities like Ahmedabad, Balanagar, Pune, Mumbai, Chennai, and Noida, indicating a significant concentration of large-scale industrial and environmental service providers in India.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Hitachihitachi.com
A technology and innovation company committed to creating a more sustainable society through advanced social infrastructure systems and improving quality of life |
40,513 | |||
| 2 |
Megha Engineering and Infrastructures Ltd (MEIL)meil.in
Diverse industrial conglomerate specializing in engineering, construction, water management, power, hydrocarbons, manufacturing, transportation, and defense infrastructure projects worldwide. |
13,436 | |||
| 3 |
SAMSUNG E&Asamsungena.com
The company specializes in engineering, procurement, construction, and project management for various industries worldwide, focusing on innovative solutions and quality services |
9,171 | |||
| 4 |
Arvind Limitedarvind.com
A $1 billion textile company providing integrated solutions in fashion, advanced materials, sustainability, and innovative fabric products worldwide |
7,018 | |||
| 5 |
BVG India Limitedbvgindia.com
An integrated services company in India offering mechanized housekeeping, landscaping, maintenance, fabrication, logistics support, and more to organizations nationwide |
5,994 | |||
| 6 |
WAPDAwapda.gov.pk
A construction company based in Île-de-France, France, specializing in various projects related to infrastructure development and construction services |
5,852 | |||
| 7 |
Ion Exchange India Ltdionexchangeglobal.com
Specializing in total environment solutions, we offer water treatment, waste management, energy generation, and air pollution control services for industry, homes, and communities |
4,527 | |||
| 8 |
PT Wiraswasta Gemilang Indonesiaptwgi.com
A private lubricant company in Indonesia, producing EVALUBE and PENNZOIL oils Providing a range of lubricants for various engines and applications |
4,099 | |||
| 9 |
Adani Enterprises Limitedadanienterprises.com
Flagship of a large Indian business group involved in building infrastructure businesses and divesting them successfully, contributing to nation-building and shareholder value |
3,871 | |||
| 10 |
Sembcorp Industries Ltdsembcorp.com
Provider of sustainable energy solutions and urban development projects with a strong renewable energy portfolio across multiple countries. |
3,833 | |||
| 11 |
Toray Industries, Inc.toray.com
Development of fibers, textiles, performance chemicals, carbon fiber composites, environment engineering, pharmaceuticals, and medical products using advanced chemical technologies worldwide. |
3,225 | |||
| 12 |
VA TECH WABAG LTD.wabag.com
A global leader in water technology, providing comprehensive solutions for municipal and industrial sectors, focusing on sustainability and resource conservation |
3,069 | |||
| 13 |
Triveni Engineering & Industries Limitedtrivenigroup.com
Leading Indian conglomerate specializing in sugar, ethanol, power transmission, water treatment, and FMCG brands Committed to excellence, innovation, and sustainable growth |
2,722 | |||
| 14 |
Kubota Corporationkubota.com
Manufacture and sale of farm equipment, construction machinery, water treatment systems, pipes, pumps, and environmental engineering services globally. |
2,639 | |||
| 15 |
Praj Industriespraj.net
A leading process solutions company specializing in bio-energy, water solutions, zero liquid discharge, critical process equipment, and brewery plants, with a focus on sustainability |
2,565 | |||
| 16 |
Maynilad Water Services, Inc.mayniladwater.com.ph
Provider of water and wastewater services to 17 cities and municipalities in the West Zone of Metropolitan Manila area. |
2,466 | |||
| 17 |
National Environment Agencynea.gov.sg
Ensure clean environment, promote sustainability, maintain public health standards, provide meteorological information, and support community environmental initiatives in Singapore. |
1,787 | |||
| 18 |
SMS Limitedsmsl.co.in
This company, established in 1967, specializes in infrastructure development including roads, railways, irrigation, mining, waste management, and other related areas With a presence in India and overseas |
1,784 | |||
| 19 |
Kurita Groupkurita.co.jp
A global leader in water treatment solutions, offering chemicals, facilities, and services worldwide to create new value for customers and society |
1,754 | |||
| 20 | 
Volvo Eicher Commerical Vehical Limitedindiamart.com
Provider of waste water recycling systems, drinking water plants, and industrial water treatment services based in Indore, Madhya Pradesh |
1,693 | |||
| 21 |
Rentokil PCIrentokil-pestcontrolindia.com
Global provider of services enhancing lives and protecting people through pest control solutions, operational excellence, safety, and customer innovations in 60 countries |
1,613 | |||
| 22 |
Air Selangorairselangor.com
Leading water services provider in Malaysia, supplying safe water to 93 million consumers through 34 treatment plants, aiming to become Asia's top provider by 2030 |
1,610 | |||
| 23 |
Kerala Water Authoritykwa.kerala.gov.in
Autonomous authority regulating water supply and waste water management in Kerala, India Monopoly in state, established in 1984 with head office in Thiruvananthapuram |
1,589 | |||
| 24 |
Jereh Groupjereh.com
An innovative multi-industry corporation specializing in high-end equipment manufacturing, oil and gas engineering, environmental management, new energy, and technical services globally |
1,506 | |||
| 25 |
SEPCO Electric Power Construction Corporationen.sepco.net.cn
A comprehensive engineering company specializing in overseas power project construction, investment, financing, and operation, with a strong global presence |
1,460 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 26 |
Sarp Industriesveolia.com
A leading European company specializing in hazardous waste treatment, with over 110 sites, 4000 employees, and 10,000 industrial customers across 10 countries |
1,296 | |||
| 27 |
Indah Water Konsortium Sdn Bhdiwk.com.my
Malaysia's national sewerage company, responsible for developing and maintaining a modern and efficient sewerage system to protect public health and the environment |
1,263 | |||
| 28 |
Okaya Power Groupokaya.in
A trusted pioneer in battery manufacturing, producing diverse and eco-friendly batteries for various applications like inverters, solar power, and e-rickshaws |
1,208 | |||
| 29 |
Municipal Corporation of Delhimcdonline.nic.in
Leading unified municipal body in Delhi, providing civic services to 20 million citizens Divided into 12 zones, occupying 13973 Sq Kms |
1,144 | |||
| 30 |
SOPANsopan.co.in
Established in 2001, the organization provides projects, services, and equipment to various industries including oil & gas, water utilities, hydrogen, and automotive sectors |
1,117 | |||
| 31 |
Welspun Enterprises Ltdwelspunenterprises.com
An infrastructure development firm specializing in road, water projects, and oil & gas investments, focusing on sustainable growth and efficient transport solutions |
1,071 | |||
| 32 |
Vishvaraj Environment Ltdvishvaraj.in
ESG-focused water utility providing sustainable water solutions through public-private partnerships, leading to water security and improved quality of life for millions |
1,008 | |||
| 33 |
Rubaminrubamin.com
A diverse group based in Vadodara, India with expertise in chemicals, metal intermediates, exploration, engineering, industrial gases, and mineral exploration ISO certified with a professional workforce |
1,006 | |||
| 34 |
TERI - The Energy and Resources Instituteteriin.org
An innovative organization promoting sustainable development through research, advocacy, and global solutions in energy and natural resource management |
1,003 | |||
| 35 |
National Parks Boardnparks.gov.sg
Management of parks, nature reserves, biodiversity conservation, animal welfare, and community engagement to enhance urban living environment. |
972 | |||
| 36 |
Perumda Air Minum Jaya (PAM JAYA)pamjaya.co.id
Providing comprehensive and quality drinking water services to the residents of DKI Jakarta, focusing on customer satisfaction and supporting the government's program |
946 | |||
| 37 |
Operational Energy Group India Ltdoegglobal.com
A global technology company offering comprehensive solutions in Power, Process, and Water industries through engineering, project management, EPC, and operations & maintenance services |
945 | |||
| 38 |
GPS Renewablesgpsrenewables.com
A leading biofuels firm in India offering technology and project development solutions for bioCNG, Ethanol, and Green H2, backed by reputable investors |
907 | |||
| 39 |
Malakoff Corporation Berhadmalakoff.com.my
Multinational energy generation and environmental solutions company in Malaysia, focusing on power generation, renewable energy, waste management, and water desalination |
894 | |||
| 40 |
Krystal Integrated Services Limitedkrystal-group.com
Leading provider of integrated facility management services for commercial, industrial, and residential properties, offering janitorial, landscaping, security, and maintenance solutions for clients' specific needs |
888 | |||
| 41 |
Municipal Councilbeedmc.org
Urban local body in Maharashtra managing city services for 3 lakh people including waste management, water supply, sanitation, roads, and fire brigade |
868 | |||
| 42 |
Shanghai Dazhong Public Utilities (Group) Co., Ltd.dzug.cn
An electrical and electronic manufacturing company located in Shanghai, China, specializing in public utilities services |
865 | |||
| 43 |
中建安装inco.cscec.com
The company operates in four main sectors: design, construction, equipment manufacturing, and investment operations, with a focus on infrastructure and global expansion |
860 | |||
| 44 |
Huaxin Cement Co., Ltd.en.huaxincem.com
A building materials firm located in WUHAN, HUB, China, specializing in cement production and related construction materials |
855 | |||
| 45 |
YTL Corporation Bhdytl.com
Integrated infrastructure developer with operations in multiple countries, focusing on utilities, construction, cement, property development, hotel management, e-commerce, and internet-based education solutions |
847 | |||
| 46 |
Public Health Engineering Departmentindiamart.com
Provider of sewage treatment plants and water supply services in Mahendragarh, Haryana, as part of the Public Health Engineering Department |
827 | |||
| 47 |
Gravita India Limitedgravitaindia.com
A global leader in recycling industry with state-of-the-art facilities providing turnkey solutions for lead, aluminium, plastics, and rubber recycling worldwide |
819 | |||
| 48 |
Wipro Infrastructure Engineering (WIN)wiproinfra.com
Cutting-edge industrial engineering business specializing in Hydraulics, Industrial Automation, Aerospace, Water treatment, and Additive Manufacturing with extensive global manufacturing facilities |
812 | |||
| 49 |
CMR Green Technologies Limitedcmr.co.in
Leading producer of Aluminium and Zinc die-casting alloys in India, with advanced technology plants and a focus on environmental sustainability and customer success |
809 | |||
| 50 |
Tianneng Group Official 天能集团官方tiannengglobal.com
A global leader in renewable energy, focusing on international trade, automotive services, smart energy, and resource recycling with professional international sales network |
807 | |||
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How this list is built
Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 12, 2026.
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