With business portraits, clients generally know their audience so we can usually very quicky determine an appropriate background or setting.
For all sessions, clients will receive all high resolution images on disk, and own all usage rights.
For studio sessions, typically we discuss in advance the look and feel needed. The session may included a classic studio background, and sometimes an alternate look, for an alternate requirement. The strategy for any session is of course is to take care of any shots needed.
Often it can make sense to shoot at the customer location. In addition to being convenient for employees, it can also provide opportunities for group portraits, candids, "at work" shots. Also, it may be important to includes settings and backgrounds at the company site. These environmental portraits on location can provide unique opportunities for portraits, often, stand-out images.