PEOs provide services to more than 200,000 small and mid-sized businesses, employing 4.5 million people.
There are 523 PEOs in the United States.
The PEO industry's 4.5 million worksite employees were paid $305 billion in 2022.
The total employment represented by the PEO industry is roughly the same as the combined number of employees for the four largest employers in the U.S.
The PEO industry’s 208,000 clients represent 17 percent of all employers with between 10 and 99 employees.