Driven by Passion. Built with Precision.
Redefining transportation experiences through custom bus innovation since 2010.
Who We Are
Karoseri Gunung Mas is a leading Indonesian coachbuilder based in Madiun, East Java. Founded in 2010, we specialize in custom bus body manufacturing—from full chassis construction to luxurious interior customization. With over a decade of hands-on experience, we serve public and private transportation companies across Indonesia with excellence and integrity.
Our Vision
To be the most trusted and innovative bus coachbuilder in Southeast Asia.
Our Mission
Deliver world-class craftsmanship with Indonesian pride
Prioritize client satisfaction through tailored designs
Foster sustainability in design and manufacturing
Embrace modern technology while preserving traditional values
What We Stand For
Craftmanship
Collaboration
Innovation
Reliability
Our Journey
2010
Founded in Madiun, East Java
2012
Started receiving orders for new bus body manufacturing.
2015
Expanded production line and launched the “Zeppelin Series”
2016
Made our debut participation at the IIBT Exhibition.
2025
Proudly achieved the milestone of building thousands of buses across Indonesia.
Our People
At Karoseri Gunung Mas, we believe that innovation is driven by people. Our team is a combination of experienced craftsmen, visionary engineers, and passionate designers dedicated to pushing boundaries.
Hari Prajitno,
Director
Director
Our Facility
Spanning over 20,000 square meters
our workshop is equipped with state-of-the-art machinery and tools, enabling us to deliver precision, speed, and safety in every project.
Trusted By Industry Leaders
We are proud to have collaborated with Indonesia’s top fleet operators and public transportation providers.