The companies listed operate in environmental services in China, with a focus on larger firms. They cover a range of activities, from heavy industry and infrastructure to specialized ecological solutions. Noteworthy firms include Jereh Group, which specializes in high-end equipment manufacturing and environmental management, and SEPCO Electric Power Construction Corporation, a comprehensive engineering company. Huaxin Cement Co., Ltd. focuses on cement production, while Tianneng Group Official is active in renewable energy and resource recycling.
A significant cluster of these companies, such as Veolia Energy, Elion Resources Group Co., Ltd., Poten Enviro, and 北控水务集团, are headquartered in Beijing, indicating a concentration of environmental services expertise in the capital. The founding dates span from 1907 (Huaxin Cement Co., Ltd.) to 2001 (深圳市铁汉生态环境股份有限公司), showing a mix of established industrial players and newer environmental specialist companies.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
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 | |||
| 2 |
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 | |||
| 3 |
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 | |||
| 4 |
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 | |||
| 5 |
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 | |||
| 6 |
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 | |||
| 7 |
深圳市铁汉生态环境股份有限公司sztechand.com
The company is a leading Chinese ecological and environmental construction company with expertise in eco-friendly projects, landscaping, eco-tourism, and agriculture |
595 | |||
| 8 |
北控水务集团bewg.com.hk
A leading water environmental services provider with a focus on engineering, design, operation, and management, expanding nationally and internationally |
569 | |||
| 9 |
聚光科技(杭州)股份有限公司fpi-inc.com
A semiconductor company based in Hangzhou, China, specializing in advanced technology solutions for various industries |
519 | |||
| 10 |
Veolia Energyveolia.cn
This company promotes a low-carbon circular economy by providing sustainable energy sources, efficient consumption, and waste-to-resource solutions for industries |
480 | |||
| 11 |
Camel Group Co., Ltd.chinacamel.com
A leading manufacturer in Asia specializing in automotive batteries with a focus on lead-acid batteries and lithium-ion power batteries, as well as recycling resources |
476 | |||
| 12 |
Elion Resources Group Co., Ltd.elion.com.cn
A leading group established in 1988, specializing in ecological restoration from deserts to cities, emphasizing clean energy and finance industries |
468 | |||
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. | |||||
| 13 | 440 | ||||
| 14 |
Poten Enviropoten.cn
A leading provider of integrated engineering solutions, specializing in wastewater treatment with a wide range of services and a proven track record |
415 | |||
| 15 |
Orient Landscapednspod.qcloud.com
This company specializes in landscape, ecology, nursery stock, property, pastoral, and wedding services, with a focus on creating eco-friendly urban spaces |
405 | |||
| 16 |
CHAMBROADchambroad.com
A diversified industrial group specializing in high-end chemicals, materials, manufacturing equipment, and industrial services, with a focus on sustainability and global reach |
362 | |||
| 17 |
Shuangliang Groupshuangliangglobal.com
A leader in energy-saving and environmental protection solutions, specializing in absorption chillers, waste heat recovery, centralized heating, and wastewater treatment systems |
360 | |||
| 18 |
China ENFI Engineering Corp.enfi.com.cn
A civil engineering business located in Beijing, China, focused on providing engineering services in the construction industry |
352 | |||
| 19 |
MCC Baosteel Technology Service Co.,Ltd（中冶宝钢技术服务有限公司）mccbts.com.cn
A leading metallurgical equipment supplier with ISO certifications, specializing in heavy machinery manufacturing, slag pot carriers, and transfer cars for international clients |
340 | |||
| 20 |
Shandong Grad Group Co.,Ltd.gradgroup.com
Shandong GRAD Group is a large enterprise specializing in central air conditioning, composite material, and solar energy products, with various subsidiaries and certifications |
275 | |||
| 21 |
Jutal Offshore Oil Services Limitedjutal.com
An integrated professional service provider in offshore oil & gas, shipbuilding, and civil engineering, with a focus on innovation and efficiency |
244 | |||
| 22 |
Shenzhen Techand Ecology & Environment Co., Ltd.sztechand.com
An environmental services company in Shenzhen focused on building relationships, attracting followers, and acquiring customers, brand fans, and employees |
185 | |||
| 23 |
Beijing Orient Landscape Co., Ltd.dnspod.qcloud.com
Beijing Orient Landscape specializes in providing environmental services in Jiangsu, China with a focus on landscaping and ecological solutions |
182 | |||
| 24 |
Shenzhen Energy Group Co., Ltd.sec.com.cn
An electrical and electronic manufacturing company based in Shenzhen, China specializing in energy-related products and services |
181 | |||
| 25 |
ECO8 Groupe
Circular Economy business specializing in automotive recycling, from artisanal to international industrial levels Focus on reducing greenhouse gas emissions and waste |
4 | |||
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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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