- April 7, 2020
- Zoom-Up Workbook Math, Z-kai's math workbook for elementary school students, wins the 2020 National Parenting Product Awards in the United States
- April 3, 2019
- Z-kai to launch Math Workbook aimed at elementary students in the United States
- January 11, 2019
- Z-kai expands to North America by founding Z-kai USA Inc.
- April 2, 2018
- Notice Regarding Company Name Change and Relocation of Headquarters
- December 7, 2017
- 【Z-kai Inc.】Notice Regarding Acquisition of All Shares in Aoi. co.
- November 6, 2017
- 【Zoshinkai Publishers Inc.】Notice Regarding Acquisition of All Shares in SMART KIDS Inc.
- November 1, 2017
- 【ZE Holdings Inc.】ZE Holdings acquires two English language schools in Australia as wholly-owned subsidiaries in order to enable the Z-kai Group to accelerate the expansion and enrichment of its English language educational services
- July 3, 2017
- 【Zoshinkai Publishers Inc.】Notice Regarding Acquisition of All Shares in Masuda-Juku (MYFRONTIER)
- July 3, 2017
- 【Z-kai Group and MIT Media Lab】Notice Regarding Participation in the Consortium of MIT Media Lab
- January 18, 2017
- Coursera and Z-kai Group form a business alliance for Massive Open Online Courses (MOOCs) services
- December 20, 2016
- LEGO(R) Education and Z-kai Group enter into a licensing agreement for programming education services
- November 22, 2016
- Z-kai Group and Arcterus Co., Ltd. form a capital and business alliance
- November 1, 2016
- 【Z-kai Group and manabo】manabo Inc. and Zoshinkai Publisher Inc. form a capital and business alliance
- April 21, 2016
- 【Z-kai Group and Make School】Jointly opening a programming school this summer in Japan - Z-kai Group and Make School have entered into business alliance -
- February 15, 2016
- RareJob, Inc. and Z-kai form a business alliance for online English lessons
- January 21, 2016
- 【Z-kai Group and Pearson Japan K.K.】 Basic Agreement on the formation of a Business Alliance
- November 21, 2015
- 【Z-kai Group】 Z-kai Group to operate Cambridge English Examinations from March 2016
- September 7, 2015
- 【Z-kai Group, Eikoh Group and Edmodo, Inc.】 SNS and Learning Platforms for Schools from February 2016
- July 9, 2015
- 【Z-kai Group】 Knewton, Inc. Partner with Zoshinkai Publishers Inc. to Develop Adaptive Learning Materials
