Kreston International US member firm CBIZ has acquired HR solutions company Payroll Control Systems (PCS).
CBIZ said the acquisition is to add 37 employees and approximately $6m in fee income to the firm.
Steve Gerard, chairman and chief executive officer of CBIZ said: "We are excited to further grow our payroll business with the acquisition of PCS.
"This transaction will result in increased operating efficiencies and additional sales talent within the Midwest region of our payroll division, which will augment our current East region operations in Roanoke, VA, and West coast operations in Palm Desert, CA."
CBIZ is the seventh largest single firm in the US, according to International Accounting Bulletin data.