Crane rental companies hire drivers and operators. Crane operators generally take brief courses in professional training. They follow that training with an apprenticeship.
Operators usually specialize in a specific area. For example, they may specialize in truck or crawler cranes. Overhead cranes require a different set of skills, as do big tower cranes. Dockside cranes are also a little different. Mobile crane operators are also expected to drive their equipment to the work site or plant.
Companies may also hire forklift and scissor lift operators. Hoists and cherry pickers require a second man who actually goes up on the lift. Relocation of tower cranes and dock cranes also require special skills. Overhead and deck cranes generally are not moved.
Small rigging cranes may be rented without an operator, and used by warehouse workers. Rigging cranes are generally battery operated.
A crane rental company may also rent out other construction equipment. Construction companies may, on rare occasions, own their own cranes, but commonly rent. Small cranes and hoists may be rented by private individuals.
Companies also hire mechanics to maintain cranes and other equipment. Mechanics need to know how to work with large and medium-sized diesel engines. They also need to be able to handle hydraulic systems and telescopic booms. Those that also provide heavy hauling services hire drivers.
Salesmen need to know what different available cranes can carry and to advise clients on the correct equipment for their needs. Rental companies also hire administrative staff. Managers and owners have to know what kind of inventory is best for their specific work situation and area.