In response to ongoing non-payment of staff salaries and entitlements BISS teachers went on strike on September 20, 2018.

Teachers wrote parents a letter stating that "Faculty contracts have not been honored and wages, health insurance,[6] and housing allowances have not been paid".

Luo Wangshu of the Shanghai Daily reported that "BISS believes that smaller class sizes make for better academic performance and communication.

"[4] BISS faculty members hail from the United States, Canada, Australia, Korea, New Zealand, Singapore, China, Japan, the Philippines, Portugal, and the U.K.

In 2017, Search Associates, the most reputable international schools' recruitment agency disassociated itself from BISS because of unpaid fees.