Suzhou has Schroeder, Qi Technology (Suzhou) Co., Ltd. (formerly Infineon), SEW- Motor (Suzhou) Co., Ltd. and Desha (Suzhou) Tape Technology Co., Ltd. These German-funded enterprises are treated well, compared with Taiwan-funded and Korean-funded enterprises. Japanese capital is much better. Basically, they are all located in Suzhou Industrial Park, and there are new districts, which are located at the eastern end and the western section of Suzhou respectively.
I don't know about Wuxi.