Staffing companies offer candidates, from administrative assistants to CEOs, the opportunity to gain access to companies in one of two ways: on a temporary or temporary ¬ to¬ hire basis on assignments that can last anywhere from one day to six months or longer; or on a full-time basis. According to the American Staffing Association's website, more than 90% of companies in the US use staffing firms, and 40% of employees looking for their first job or who are reentering the job market have done so by working with a staffing company.  Show less