TOSUN :
Leading the automotive electronics tool chain in the Chinese market
TOSUN focuses on developing independent and controllable automotive electronics toolchains. Centered around our core software TSMaster and supporting hardware, we offer key functions including embedded code generation, bus analysis, simulation, testing, diagnostics, and calibration—supporting the full lifecycle of vehicle and component R&D, testing, production, and after-sales.

- TOSUN Shanghai Headquarters
- Bldg. 9, 1288 North Jiasong Rd, Waigang, Jiading, Shanghai
- +86-21-59560506
- info@tosunai.cn
- Monday to Friday: 9:00 ~ 18:00
Room 336, 3F, Block A, Xinhua International Center, No. 616 GaoLiZhuang, Huaxiang, Fengtai District, Beijing, China
Chongqing Intelligent Software Base, Guoyu & Heshu Rd, Jiangbei, Chongqing
1-3F, No.16, Lane 4849, Cao'an Highway, Jiading District, Shanghai, China
Building A, Jiaxi Center, Renmin West Road, Yuhua District, Changsha, China
Mykong International Center, No. 3, Shunjiang Section, Wuhou Avenue, Wuhou District, Chengdu, China
3/F, Tower A, Lingnan Science & Technology Center, No. 672 Daguanzhong Road, Tianhe District, Guangzhou, China
Mission
Vision
Along the way, we have always focused on the independent innovation of automotive electronics tool chain.
After years of technology accumulation and market expansion, TOSUN has become the No.1 customer coverage in automotive software toolchain in China (certified by Frost & Sullivan), with more than 5,000 enterprise users worldwide, widely serving automotive OEMs, parts suppliers, chip manufacturers, equipment and service providers, construction machinery and other industry sectors.
2017
TOSUN was formally established, focusing on the independent research and development of automotive electronic tool chain and technological innovation
2019
Awarded the Ministry of Science and Technology Science and Technology-based Small and Medium Enterprises (SMEs)
2020
2021
2022
2023
2024
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Internship Program
