In order to plan and implement effective measures to counter staff shortages among OTs in Switzerland, empirical data on the size and structure of the Swiss occupational therapy workforce are an important basis. The Foundation for Occupational Therapy (Stiftung für Ergotherapie) has funded a research study to look into these matters, involving all three Swiss universities that provide bachelor’s and master’s degree programs in occupational therapy (ZHAW Zurich University of Applied Sciences, HES-SO University of Applied Sciences and Arts Western Switzerland, and SUPSI University of Applied Sciences and Arts of Southern Switzerland) as well as the EVS/ASE. The aim of this study was to collect data on the size and the structure of the Swiss occupational therapy workforce in terms of sociodemographic make-up, geographic distribution, and fields of practice. A secondary aim was to examine which characteristics (e.g., size, mean age, mean educational status) of OT teams influence their turnover rates. The explicit main research questions were as follows: • What is the sociodemographic make-up of the Swiss OT workforce in terms of age, gender, and level of education? • What is the structure of the Swiss OT workforce in terms of independent practice and institutions, geographical distribution (i.e., rate of OTs per 10’000 inhabitants), fields of practice, and percentage of employment? • How many Swiss OT positions are unfilled, what is the mean turnover rate, and what characteristics of a team (gender composition, mean age, mean level of employment, setting, size of the team, mean percentage of employment) influence this turnover rate? • Is the current situation regarding continuing education opportunities for OTs seen as sufficient?