About us
TOSUN, founded in 2017, specializes in the research and development of independently controlled automotive electronic toolchain products. Its core software, TSMaster, and supporting hardware provide features such as embedded code generation, automotive bus analysis, simulation, testing and diagnostics, and calibration. These capabilities support the entire lifecycle of vehicle and component research, development, testing, production, and after-sales, with a strong emphasis on rapid technical responsiveness.
At present, TOSUN is No.1 in automotive software toolchain customer coverage in the Chinese market (certified by Frost & Sullivan), with more than 5,000 global enterprise users. Users cover: automotive OEMs, component suppliers, chip manufacturers, equipment/service providers, engineering machinery, aerospace and other fields.
The headquarter is located in Jiading District, Shanghai, where the automotive industry is concentrated, with other branches in Guangzhou, Beijing, Changchun, Chengdu, Chongqing, Changsha, Taiwan, Stuttgart and other places.

Shanghai Headquarters
Address.
Shanghai Jiading District
Building 9, Lane 1288, North Jiasong Road, Waigang Town
Contact information
- Tel: +86-21-59560506
- Mail: info@tosunai.cn
Commuting time
- Monday to Friday: 9:00 ~ 18:00
Shanghai R&D Center
1-3F, No.16, Lane 4849, Cao'an Highway, Jiading District, Shanghai, China
Changsha R&D Center
Building A, Jiaxi Center, Renmin West Road, Yuhua District, Changsha, China
Chengdu R&D Center
Mykong International Center, No. 3, Shunjiang Section, Wuhou Avenue, Wuhou District, Chengdu, China
Guangzhou Technical Support Center
3/F, Tower A, Lingnan Science & Technology Center, No. 672 Daguanzhong Road, Tianhe District, Guangzhou, China
Beijing Branch
Room 336, 3F, Block A, Xinhua International Zhongye, No. 616, Gao Lizhuang, Huaxiang, Fengtai District, Beijing, China
Chongqing Branch
Chongqing Intelligent Software Industrial Base, 240 meters northeast of Heshu Road and Guo Yu Road, Jiangbei District, Chongqing, China
Taiwan Branch
13F, No. 908, Jingguo Road, Luzhupin, Taoyuan, Taiwan
The founding team has over 10 years of experience in the automotive electronics industry
Start Up TOSUN
Shanghai TOSUN Technology Ltd was officially established in 2017 to provide users with more options for bus tool chains. We are equipped to incorporate any valuable features and usage optimization suggestions into our product list to solve your engineering problems and increase fast productivity. TOSUN's solutions can significantly reduce your R&D test costs. Our easy-to-use hardware and software are designed to reduce learning costs and to be compatible with each tool.
- Software is purely domestic, independent and controllable
- Committed to reducing costs and increasing efficiency for customers
- Tool chain support for the Chinese automotive industry
- Localized core R&D for agile response to iterative user needs
SME Certification
- Ministry of Science and Technology (MOST) Science and Technology-based SMEs Recognition
- Shanghai Science and Technology SME Innovation Funding
- Outstanding Innovation and Entrepreneurship Exhibit Award in China International Industry Fair University Pavilion
- National Second Prize in China Innovation and Entrepreneurship Competition for Industrial Robotics
Shanghai High-Tech Enterprise
- Awarded - 2021 GEW Global Entrepreneurship Week "Angel Fund Outstanding Project Eagle Award"
We have completed an angel round of funding of tens of millions of dollars to rapidly expand TOSUN technology to various fields.
- Won - Second Prize of Shanghai "China Creative Wings" Entrepreneurship and Innovation Competition
We look for innovation from the market!
We simplify the process from the complexity!
We overcome obstacles with you!