Firms: number of firms and workers by business sector of the firm and characteristics of the workers

The dataset contains the companies surveyed in the 9th Census of Industry and Services. The survey units are: sole proprietorships, partnerships and corporations, cooperatives (excluding social cooperatives, covered by the survey on non-profit institutions), private law consortia, economic public bodies, special companies and public utility companies. For the purposes of the census, self-employed workers and freelancers are also considered enterprises. The companies are classified by Ateco 2007 (5 digits), legal form, group membership, company size, artisan company character and presence of employees. NOTE: the company size is defined on the basis of the employee class: micro (less than 10 employees), small (from 10 to 49), medium (from 50 to 259), large (250 or more employees). For further information on the census see the website http://dati-censimentoindustriaeservizi.istat.it. This dataset was released by the municipality of Milan.