On 28 March 2012 the bank was one of the banks that were selected to manage Fondo di Garanzia per le Piccole e Medie Imprese (a guarantee fund for SMEs) of the Ministry of Economic Development in a 9-year contract. (other banks were Mediocredito Italiano, Artigiancassa, Istituto Centrale delle Banche Popolari Italiane and Banca del Mezzogiorno – MedioCredito Centrale)
MPS Banca per l'Impresa was a merger of the two subsidiaries of Banca Monte dei Paschi di Siena: MPS Merchant and MPS Banca Verde (ex-Istituto Federale di Credito Agrario per la Toscana or Istituto Nazionale di Credito Agrario S.p.A. (INCA)) in 2004. The history of MPS Merchant – Banca per Piccole e Medie Imprese (found 2001) could be traced back to Mediocredito Toscano, found 1954. In 2007 the bank received a division of MPS Finance and renamed into MPS Capital Services Banca per le Imprese.
Mediocredito Toscano was a bank established in 1954 to provide medium term loan to small and medium companies of Tuscany region, as a statutory corporation. 18 other Mediocredito were also established in 1950s for the 19 regions of Italy. Due to Legge Amato the bank became a limited company (Italian: Società per Azioni), which Monte dei Paschi di Siena (MPS) owned 74% stake. The Mediocredito also merged with Istituto Nazionale di Credito per il Lavoro Italiano all'Estero S.p.A. that year. In 1995 MPS also became a limited company (formation of Banca Monte dei Paschi di Siena and Fondazione Monte dei Paschi di Siena). In 2000 the Mediocredito was owned by Banca MPS (80.454% stake) and Banca Toscana (11.676% stake), a subsidiary of Banca MPS (57.278% stake plus 4.983% via Banca Agricola Mantovana (BAM); Banca MPS owned 51.487% stake of BAM). The two banks (BAM and Banca Toscana) were absorbed by Banca MPS in 2000s.