Nihon Kotsu as the "Prince of Taxis." The company was founded as a sole proprietorship in 1928 and reorganized as a stock company in December 1945. It began as a limousine operator and expanded to taxi service in 1940. NK operates the most popular taxi hailing mobile application in Japan, Japan Taxi. Toyota invested 500 million yen in the app in 2017, followed by a second 7.5 billion investment in 2018. Tokyo Musen, a major rival of Nihon Kotsu in the Tokyo area, joined the app later that year in an effort to counterbalance foreign rivals such as Uber and Didi Chuxing.
Hailo contain journey and payment information along with instructions to help retrieve any property lost or forgotten in the taxi. In February 2013, Black Car Assistance Corporation and Livery Roundtable filed a lawsuit against the taxi and limousine commission to prevent e-hailing companies from expanding to New York City. In April 2013, a judge dismissed the lawsuit and Hailo won the right to begin an e-hail beta trial. The decision was subsequently appealed. After a second temporary restraining order was issued against the pilot program, Hailo became the only taxi-hailing app-maker to join the lawsuit in support of the city. Hailo