This chapter focuses on the development of support staf at Utrecht University. It was a period of rapid growth for the university and pro-found modernization of scientific practice. This was also evident in the development of support activities and support staf. Their size grew in absolute numbers and in proportion to scientific personnel. New positions emerged, such as analyst or glassblower, and existing positions became more specialized, such as technician and laboratory clerk. This development also contributed to new forms of organization: the ‘family-like’ unit of the nineteenth century faded and was replaced by a business-like organization. Technicians, analysts, and clerks were not part of the civitas academica, but they became more recognized for their contributions to research and education