Our founder, Rieko Sonntag, established SJSK K.K. in 1992 to provide Language teaching and intercultural training and consultancy for major international companies in Japan that make our clients successful.

SJSK K.K. is well known in the German community and has built an excellent reputation for its effective, interesting and unique programs.

In today’s economy, success demands action that brings results. Language and intercultural skills are key elements to making this possible.