Yahoo! Japan Corporation (ヤフー株式会社, Yafū Kabushiki-gaisha) is a Japanese internet company originally formed as a joint venture between the American internet company Yahoo! (later divested by Verizon into Altaba) and the Japanese company SoftBank. It is headquartered at Kioi Tower in the Tokyo Garden Terrace Kioicho complex in Kioicho, Chiyoda, Tokyo. Yahoo! Japan's web portal is the most visited website in Japan, and its internet services are mostly dominant in the country. According to The Japan Times, as of 2012, Yahoo Japan had a footprint on the internet market in Japan. In terms of use as a search engine, however, it has never surpassed Google. The company is the second largest search engine used in Japan as of July 2021, with a market share of 19% behind Google's 77%.