“…Whenever present, information on firms includes the start/end date of its life, the main objective of the firm as stated in its founding act, legal form (partnership, limited liability, join-stock, etc. ), legal address, the number of offices, financial information regarding its starting capital and yearly balance 2 At present, very few works provide some regional data, from secondary sources, on pre-Unification since the 1820s, like the work by Federico and Tena-Junguito (2014) that investigates international trade trends for some pre-unitarian states and the work by Ciccarelli and Weisdorf (2019) that reconstructs literacy rates. 3 Acronym for Imprese, Finanza, Economia e Società nel Mezzogiorno-Enterprises, Finance, Economy and Society in the Mezzogiorno.…”