The biggest portal site in 2013 was Yahoo. Its market share was 25.5%. The second site was Google (24.7%). The third site, NTT (http://www.goo.ne.jp/ 12.4%) chased Yahoo and Google. But Big 2 got double-scored points of NTT's. It is hard to catch up Big 2. Microsoft (7.1%) and Biglobe (http://www.biglobe.ne.jp/ 6.5%) are 4th and 5th.
Figure : Portal Site Market Share in Japan, 2013
|Site||Market Share %|
Source is Nikkei Sangyo Shimbun newspaper, the article on 2014 July 28th.