ATOSS Software SE, together with its subsidiaries, offers technology and consulting solutions for professional workforce management and demand optimized personnel deployment in Germany, Austria, Switzerland, and internationally. It provides Crewmeister, a software solution for small businesses; ATOSS Time Control, a software solution for time and attendance management, and workforce scheduling for small to medium-sized customers, as well as de-centrally organized clients; and ATOSS Staff Efficiency Suite and ATOSS Startup Edition, software solutions for time and attendance management and workforce scheduling for all sizes in all industries. The company also offers software implementation and training, consulting, and maintenance services, as well as sells hardware components for time recording and access control, and software licenses. It serves customers in the manufacturing and production, healthcare and social services, retail, logistics and transportation, call center, and service industries. The company was formerly known as ATOSS Software AG and changed its name to ATOSS Software SE in May 2024. The company was founded in 1987 and is headquartered in Munich, Germany.