The global staffing industry generated 490 billion U.S. dollars in 2018. In 2017, the United States' staffing and recruiting industry sales reached 161 billion U.S. dollars, 83 percent of which was generated in the temporary and contract employment sector. In the United States, temporary and contract employment totaled 14.5 million in 2016, down from 15.6 million in 2015, the highest employment figure recorded since the year 2000. While employment figures have been sporadic between 2000 and 2017, the average length of temporary and contract assignments have generally risen over the period from 9.7 weeks in 2000 to 10.7 weeks in 2017.
Despite the U.S. holding a large share of the global staffing industry, the largest staffing firm in the world is not American, it is the Swiss company Adecco. In 2018, the company’s revenue amounted to 23.87 billion U.S. dollars, with the largest share of its business generated in the industrial sector. The largest U.S. company in the ranking is Manpower which generated close to 22 billion U.S. dollars in revenue in 2018. Manpower placed approximately three million people into permanent, temporary and contract positions worldwide in 2016.