Japanese ICT companies have not been able to gain competitive advantages in the global market, although they have paid lots of effort into promoting innovation. From the point of view of ambidextrous organization, it is reported that Japanese ICT companies have problems with low exploration degree. This paper provides knowledge that can be used to improve the level of exploration by investigating the degree of exploratory technology development efforts of Japanese ICT companies in recent years and discovering common elements from organizations with high exploration degree. As a result, the relationship between some organizational structure and exploration degree, such as the density of R&D network is derived.