- Business
- Siamrajathanee Public Company Limited (SO.BK) operates as a leading provider of public transportation and mobility solutions in Thailand, primarily focusing on bus operations, airport services, and related infrastructure. The company offers core products and services including city bus operations under the BMTA concession; airport bus services connecting Suvarnabhumi and Don Mueang airports to key locations in Bangkok and surrounding areas; electric bus manufacturing and leasing through its subsidiary; premium limousine bus services for intercity travel; and advertising space management on its fleet and properties. It also provides vehicle maintenance, electric vehicle charging stations, and digital ticketing platforms to enhance passenger experience and sustainability.
Founded in 2004 and headquartered in Bangkok, Thailand, Siamrajathanee serves urban commuters, airport passengers, and corporate clients across Thailand, with operations concentrated in the Greater Bangkok region and select provincial routes. The company targets mass transit users, tourists, and businesses seeking reliable ground transportation, positioning itself in the transportation and logistics industry segments.
In recent developments within the last two years, Siamrajathanee expanded its electric bus fleet through a major procurement and delivery of battery-electric buses for BMTA routes, supporting Thailand's green transportation initiatives; formed strategic partnerships with technology providers for smart ticketing and fleet management systems; and pursued business growth via new route concessions and infrastructure projects at key airports. Additionally, the company secured funding for EV infrastructure expansion and announced operational enhancements, including pilot programs for autonomous shuttle services. These changes underscore its shift toward sustainable mobility and digital integration.