The Turkey Regional Enterprise Survey (RES) was conducted between August 2015 and June 2016. The objective of the survey was to gain an understanding of what Turkish firms experience in the private sector. The RES builds from the methodology developed for the standard Enterprise Survey of the World Bank and creates a baseline dataset with full geographical coverage of the private sector in Turkey, in the period 2015-2016. Data is used to create statistically significant business environment indicators that are comparable across all regions (NUTS 2) of the country. Data from 6,006 establishments was analyzed. Stratified random sampling was used to select the surveyed businesses. The survey topics include firm characteristics, information about sales and suppliers, competition, infrastructure services, judiciary and law enforcement collaboration, security, government policies, laws and regulations, financing, overall business environment, bribery, capacity utilization, performance and investment activities, and workforce composition.