As far as I know, the more experienced agents in Shenzhen are Zhongzhi and Keji Huafeng, and their corresponding senior agents (or experts and directors) are Cheng Yisheng and Hu, with slightly different emphases. The former is famous for its specialty, while the latter is famous for its business.
Most of the newly established institutions in Shenzhen were established by the original agents of Zhongzhiyuan, including Cheng Yisheng, the former director of Zhongzhiyuan, who was founded independently.
Not long ago, as "patent agency experts", less than ten institutions were invited to participate in the roundtable on industrial transformation and upgrading and intellectual property development in Shenzhen, and the rest were mostly senior media and government officials. Thus, there are almost only these authoritative institutions in the industry:
Cizhi, Zhong Yi, Kejihuafeng, Leading the People Far, Creating New Friends, Qianna, Shuntianda, and New University of Science and Technology (just remember these, in no particular order).
Among them, the best business volume last year should be Secondary One, and the highest reputation should be Cheng Yisheng (taking people far) and Hu (Ke Jihuafeng).
The above is purely personal opinion, for reference only!