It operates bus transport services in central and southern Mindanao with its headquarters in General Santos.

[1] Yellow Bus Line is the first bus company and the second largest in Mindanao with more than 200 units plying the routes in Sultan Kudarat, South Cotabato, Maguindanao, North Cotabato, Sarangani Province, and Davao.

YBL is the first bus company in the Philippines to implement fixed regular wage for its drivers and conductors.

In year 2015 they conducted NC III qualification exams for all their drivers and conductors.

On July 5, 2019, the company entered the General Santos – Kidapawan, marking the first time it serviced an area in North Cotabato.