Utility subs were designed to be used for a wide array of tasks. They were equipped with various tools and apparatus to be used in both light underwater construction and maintenance of Mon Calamari's many floating cities. They were also used in scientific and archeological applications.
Utility subs were mainly seen on the Mon Calamari homeworld, but Urukaab did also export them to other water worlds settled by other species. The controls of these exports were customized for the needs of the species who would be using them.