UKG is an American multinational technology company with dual headquarters in Lowell, Massachusetts, and Weston, Florida. It provides workforce management and human resource management services. The company was founded in April 2020 as a result of the merger of Ultimate Software and Kronos Incorporated. Former Kronos CEO Aron Ain was the CEO and chairperson of the combined company until July 1, 2022, when he stepped down as CEO to become Executive Chairperson. On February 20, 2020, Ultimate Software and Kronos Incorporated announced they agreed to form a new cloud computing venture specializing in workforce management and human capital management. The combined company, valued at $22 billion, would be one of the largest cloud computing companies. Kronos CEO Aron Ain became CEO and chairman of the new company, with more than 12,000 employees and dual headquarters in Lowell, Massachusetts, and Weston, Florida.