Founded in 1972, PT EXSA Internasional is a proudly independent, multidisciplinary firm headquartered in Jakarta, Indonesia. For over 50 years, we have actively contributed to the nation’s development by supporting complex infrastructure, environmental, and engineering projects across the archipelago. More than just a service provider, EXSA has become a trusted partner to both public and private sectors, offering end-to-end expertise—from early-stage studies and planning to design, project execution, and post-construction evaluation.

What sets us apart is our commitment to building local capacity. We believe in empowering Indonesia’s young talents by providing them with hands-on experience, continuous mentorship, and access to the latest tools and techniques. This dedication has enabled us to cultivate a skilled workforce that not only excels in the technical field, but also plays a significant role in shaping the future of sustainable resource management and infrastructure development.

EXSA offers a comprehensive range of services across topographic and hydro-oceanographic surveys, aerial mapping, terrestrial measurement, photogrammetry, cartography, and technical consultancy. We are also experienced in geotechnical investigations, providing drilling, sampling, in-situ testing (such as SPT, CPT, and DCP), and laboratory analysis to support accurate foundation design and infrastructure planning. Our integrated expertise ensures reliable site data from surface to subsurface, across land and marine environments.