Nikkei press reported 2015 machining center market share in Japan. According to it, the top supplier was FANUC (26%).
Figure: 2015 Machining Center Market Share in Japan
|Manufacturer||Market share (%)|
|Makino Milling Machine||11.5|
Source is Nikkei Sangyo Shimbun newspaper, the article on 2016 July 25th.