Arriva Italia – Torino (former SADEM S.p.A.) was established in 1941 in Dalmatia and Montenegro, with the name of S.A.D.E.M., or the Trucking Company of Dalmatia and Montenegro.
In the years 1943/44, and therefore in the war period, the Company was transferred to Turin for the needs of the then Fiat group shareholder, including those of looking after the mobility of the workers of the various plants as well as of officials and managers.
After the war, the company reorganized and put into operation some car connections deemed necessary and urgent by public users. This is how the Turin / Milan, Turin / Aosta Valley, Turin / Tuscany, Turin / Rome connections were born. In the meantime, the Company changes its original name and takes on that of SADEM – Southern European Road Transport Company. Since then, the company has undergone significant development and strengthened, so that it is currently one of the leading companies in the public transport sector. Since the late 1950s, Sadem has also developed the tourism sector through the rental business and the regular bus service sector, now connecting more than seventy Italian and European locations.
Meanwhile FIAT continued its strategy of disengaging the bus sector by selling its passenger transport companies. In 1985, SADEM and SAVDA were bought by a group of entrepreneurs, including the former President of SADEM S.p.A., Eng. Nicola Proto.
On June 27, 1991, SADEM S.p.A. acquired SAPAV S.p.A., in turn controlled by SAVDA S.p.A. of Aosta, also sold a few years earlier by FIAT. At the time of the transition, SAPAV had 134 buses and 233 employees and a share capital of 6,200,000,000 lire. Since 2005, SADEM S.p.A. joins the SAB group, controlled by ARRIVA plc-UK, a leading European organization in the private sector of passenger transport. The habit of operating in the selective and competitive rental market, as well as the characteristics of many bus lines frequented by attentive and demanding users (lines for airports, national and international motorway lines) has determined in the Company attention to the quality of services rendered, aware of the fact that this element will increasingly represent the basis on which to continue to consolidate its success and growth in the market.
In 2008 Arriva acquired the entire share capital of SADEM S.p.A.
As of 1 January 2010, Sadem fully incorporated Sapav SpA, operating in the Pinerolo basin and formerly a company of the group. Sapav was already certified according to UNI EN ISO 9001 and UNI EN ISO 14001 standards.
Also in 2010, SADEM became part of the Extra.To consortium, the sole transport operator of the Metropolitan City of Turin, to establish a single network capable of covering the entire provincial territory.
From 1 January 2021 Arriva Italia incorporates SAVDA Aosta, SADEM Torino, SAB Bergamo, SIA Brescia and KM Cremona, becoming the public transport operator instead of local companies.