Rentracks Co., Ltd. engages in the web consulting business. It operates through the following segments: Performance Based Advertising Service, Search-linked Advertising Agency, and Used Construction Machinery Marketplace Related. The Performance Based Advertising Services segment is a business that adjusts the amount of success fees between advertisers and advertising media, and collects and manages payments of confirmed success fees. The Search-linked Advertising Agency segment s a business that acts as an agent for search-linked advertising and performs operational agency work such as selecting and managing appropriate keywords and adjusting the timing of advertisements. The Used Construction Machinery Marketplace Related segment acts as an intermediary for buying and selling used construction machinery, etc. through a buying and selling website. The company was founded by Eiji Kaneko on December 22, 2005 and is headquartered in Tokyo, Japan.