Even though the rig's crew performs these duties as part of their regular job, a full scale repaint requires the services of these specialty contractors. Diving Companies Divers are used frequently to inspect underwater structures and equipment. Sometimes a piece of sub-surface equipment malfunctions and divers must be sent down to repair it. Their capability also includes underwater welding and demolition. People who wish to go into the diving industry are usually required to serve at least a year as diving tenders after they have completed the necessary schools.
Tenders serve as the surface-based partner for the man underwater.
Tenders can also be used as back-up divers if the need arises. Special Service Companies as an Opportunity Special service companies are excellent examples of America's free enterprise system at work. There are literally thousands of them. Many a fortune has been made by people going to work in the patch, starting at just the most basic position, seeing a need for some type of specialized service or equipment and then providing it.