The AiLock ransomware group listed Nihon Kotsu Co., Ltd. on its data leak site on 2026-07-15. Country: JP Sector: Transportation Domains named: nihon-kotsu.co.jp Claim as published on the leak site: Nihon Kotsu Co., Ltd. is the largest taxi and limousine operator in Japan. For the fiscal year ending May 2025, the company reported an annual consolidated revenue of ¥103.445 billion, with group and partner company sales reaching ¥155.457 billion.