Sompo Holdings was formed in 2010 after the merger of the former Sompo Japan and Nipponkoa Insurance. The name Sompo, which means "nonlife insurance" in Japanese, was adopted as a common brand in 2001 for a planned three-way merger of Yasuda Fire, Nissan Fire, and Taisei Fire. Sompo has around a 26% market share of nonlife insurance premiums in Japan, compared with around 29% and 33% for larger rivals Tokio Marine and MS&AD.