UKG (Ultimate Kronos Group, formerly known as The Ultimate Software Group) is a provider of human resource, payroll, and workforce management solutions. It offers UKG Pro, a tool that combines HR technology with payroll functionality; UKG Dimensions, a platform that connects with an ecosystem of enterprise systems and applications and delivers AI-powered workforce solutions; and UKG Ready for smaller companies. The company also provides scheduling, payroll, talent, reporting, and analytics services for the healthcare, manufacturing, retail, and education industries. UKG was formed as a result of a merger between Ultimate Software and Kronos.