These Beijing-based companies conduct in-house research and development. They represent a mix of large established enterprises and younger technology firms. Key players include CHINA STATE CONSTRUCTION, a major construction and real estate conglomerate; Baidu, Inc., a leading AI company; Xiaomi Technology, known for smartphones and smart hardware; and the Chinese Academy of Sciences, a national scientific institution.
The data shows a strong concentration in software development and information technology, with several companies founded in the 2000s and 2010s, such as Baidu (2000), Xiaomi Technology (2010), and Kuaishou Technology (2011). There is also a notable presence of large institutions in research and education, like Tsinghua University and Beijing Institute of Technology.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
CHINA STATE CONSTRUCTION (CSCEC)cscec.com.cn
A leading construction and real estate conglomerate in China, specializing in housing construction, international contracting, infrastructure development, and real estate investment |
37,581 | |||
| 2 |
Baidu, Inc.baidu.com
Leading AI company with comprehensive AI stack, diverse products, and services, serving millions of users, developers, and enterprises worldwide. |
26,390 | |||
| 3 |
Xiaomi Technologymi.com
Designs and manufactures smartphones and smart hardware connected through a leading AIoT platform, serving users globally with innovative technology. |
25,411 | |||
| 4 |
Chinese Academy of Sciencesenglish.cas.cn
Leading national scientific institution in China, specializing in natural sciences, high technology development, research institutes, academic divisions, higher education, and national strategic research |
15,069 | |||
| 5 |
Tsinghua Universitytsinghua.edu.cn
A prestigious university in Beijing, China, Tsinghua University is dedicated to academic excellence, societal well-being, and global development |
12,672 | |||
| 6 |
BOE Technology Group Co., Ltd.boe.com
Provides intelligent interface products and services for information interaction and human health, focusing on semiconductor display, IoT innovation, sensors, MLED, and smart engineering medicine. |
7,559 | |||
| 7 |
Xiaomi Internationalmi.com
Innovative tech firm creating high-quality hardware, software, and internet services with input from fans worldwide, focused on user-centric innovation |
7,286 | |||
| 8 |
SANY Groupsanyglobal.com
A global company founded in 1989, specializing in manufacturing machinery for various industries, with a strong presence in over 180 countries worldwide |
6,983 | |||
| 9 |
Kuaishou Technologykuaishou.com
A technology company developing content sharing platforms, with a focus on fast and easy content production, distribution, and consumption globally |
6,231 | |||
| 10 | 4,309 | ||||
| 11 |
yonyou Network Technologyyonyou.com
A leading provider of management software solutions and e-business services, driving commercial and social progress through IT since 1988 |
3,990 | |||
| 12 |
中建二局cscec2b.com.cn
A major Chinese construction and engineering organization with expertise in a wide range of projects, including buildings, infrastructure, and international construction ventures |
3,566 | |||
| 13 |
Beijing Institute of Technologybit.edu.cn
A top research-oriented university in China focused on science and technology, receiving national awards and high research funds annually |
3,047 | |||
| 14 | 2,688 | ||||
| 15 |
Perfect World Co., Ltd.wanmei.com
An online game company founded in 2004, with headquarters in Beijing Develops, operates, and markets games globally, reaching over 100 countries |
2,602 | |||
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. | |||||
| 16 |
Ruijie Networksruijie.com
A global network solutions provider focusing on innovation to enhance customer network experiences, serving telecom carriers, financial services, government agencies, and enterprises worldwide |
2,495 | |||
| 17 | 
甲骨文(中国)软件系统有限公司oracle.com
A computer software company based in China specialized in developing software systems |
2,413 | |||
| 18 |
Pharmaronpharmaron.com
Premier service provider for life sciences industry offering comprehensive research, development, and manufacturing services across multiple therapeutic modalities globally |
2,134 | |||
| 19 |
State Grid Corporation of Chinasgcc.com.cn
An internet company based in Beijing, China that is focused on providing online services and solutions to users |
2,121 | |||
| 20 |
China Energy Engineering Group Co. Ltd.ceec.net.cn
A leading global solutions provider in the power industry, offering comprehensive services from survey and design to project management |
1,989 | |||
| 21 |
China Railway Group Limitedcrec.cn
Civil engineering company specializing in infrastructure construction, project management, and engineering services based in Beijing, China. |
1,902 | |||
| 22 |
Li Autoliauto.com
A leading Chinese new energy vehicle company that designs, manufactures, and sells premium smart electric vehicles, surpassing sales targets |
1,842 | |||
| 23 |
Cheetah Mobilecmcm.com
A global technology company specializing in internet products, AI-driven robotic solutions, and service robots, focused on enhancing digital transformations |
1,836 | |||
| 24 |
Kingsoft Officewps.com
A global developer of office software solutions with over 25 years of experience, providing productivity applications for consumers and enterprises worldwide |
1,821 | |||
| 25 |
Yuanfudaoyuanfudao.com
Leader in China's online education sector, offering diverse services like online tutoring and smart learning through various education products and technologies since 2012 |
1,789 | |||
| 26 |
BMW Chinabmw.com.cn
Global leader in automobile and motorcycle manufacturing, setting high standards for premium individual mobility with worldwide reputation and innovative technologies |
1,751 | |||
| 27 | 1,685 | ||||
| 28 |
三一重工股份有限公司sanyhi.com
This company is a machinery company based in Beijing, China, specializing in heavy equipment manufacturing and construction machinery |
1,642 | |||
| 29 |
Foton Motorfoton-global.com
A global commercial automotive company with a wide range of vehicles and machinery, partnerships with major brands, and a strong international presence |
1,620 | |||
| 30 |
StarTimesstartimes.com.cn
A Chinese media group leading digital TV operations in Africa, providing technology, network, and content services to millions of subscribers |
1,600 | |||
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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 11, 2026.
More company lists in Beijing
- The largest companies in Beijing 690
- Multinational companies in Beijing 199
- Publicly traded companies in Beijing 117
- Financial services firms in Beijing 91
- Public sector organisations in Beijing 87
- Corporate groups and holding companies in Beijing 86
- Companies with a mobile app in Beijing 82
- Technology, Information and Internet companies in Beijing 70
- Manufacturers in Beijing 67
- Hardware manufacturers in Beijing 61
- Critical infrastructure operators in Beijing 57
- Education providers in Beijing 53
- Financial Services companies in Beijing 50
- AI companies in Beijing 47
- Retail chains in Beijing 45
- Professional services firms in Beijing 44
- IT Services and IT Consulting companies in Beijing 42
- Software Development companies in Beijing 36
- E-commerce companies in Beijing 32
- Media companies and publishers in Beijing 31
- Energy companies in Beijing 30
- Research institutes in Beijing 27
The same list elsewhere in China
- Companies with in-house R&D in China 981
- Companies with in-house R&D in Guangdong 211
- Companies with in-house R&D in Jiangsu 95
- Companies with in-house R&D in Zhejiang 86
- Companies with in-house R&D in Shandong 51
- Companies with in-house R&D in Fujian 29
- Companies with in-house R&D in Shanghai 119
- Companies with in-house R&D in Shenzhen 113
- Companies with in-house R&D in Hangzhou 45
- Companies with in-house R&D in Guangzhou 44