Kalimantan, The Indonesian part of Borneo, boasts a thriving maritime industry with numerous shipyards and marine offshore companies. These entities play a crucial role in providing diverse services to key sectors such as oil and gas, mining, and transportation. Notably, the industry serves as a major employer in the region, with a workforce exceeding 100,000 individuals. The geographical concentration of shipyards and marine offshore activities is prominent in East Kalimantan, South Kalimantan, West Kalimantan, and North Kalimantan. These areas contribute significantly to the construction and repair of various vessels, including offshore support vessels, tugboats and barges, fishing vessels, cargo ships, and oil tankers. Additionally, marine offshore companies in Kalimantan offer essential services, encompassing offshore drilling and production, underwater inspection and repair, marine transportation, and even offshore wind farm construction and maintenance. This dynamic industry underscores Kalimantan's pivotal role in the maritime landscape, contributing not only to regional employment but also to the broader economic development of the area