[9] In 1990, it merged with Diac[10] (Diffusion Industrielle et Automobile par le Crédit) SA, a company formed in 1924 by Louis Renault[11] as a result of the lack of liquid funds after the 1921 crisis[12] and with similar objectives, but focused exclusively on loans for the purchase of vehicles[13] (today Diac operates as a RCI Banque's wholly owned subsidiary).

[15] By the end of 1999, after the establishment of the Renault–Nissan Alliance, the firm acquired the five Nissan's financial affiliates in Europe (located in the United Kingdom, the Netherlands, Italy, Germany and Spain) for €294 million and expanded its presence in South and Central America to finance Renault and Nissan sales.

[21][22] On 8 June 2018, it acquired a 75% majority interest in iCabbi, a dispatch management company for automotive fleets of taxis and PHVs.

[29][30] At the end of 2022, the group launched the long-term rental company Mobilize Lease&Co,[31][32][33] which made its first two acquisitions in Germany in July 2023.

[36] It offers related services, including car loans (used and brand-new), electric vehicle battery leasing contract (100,000 contract in March 2017),[37] rentals with purchasing options, leases, long-term rentals for retail customers and services, such as maintenance, extended warranties, roadside assistance, fleet management, and credit cards.

It has subsidiaries in Argentina, Brazil, Colombia, Algeria, Morocco, Ukraine, South Korea, and the European Union and joint-ventures in Russia, Turkey and India.

[39] In February 2012, RCI Banque launched the ZESTO savings accounts, which were opened to a general clientele.

[41] The success of this initiative[42] led to other automotive groups operating in the French market, as PSA Peugeot Citroën, to consider launching similar projects.

Positions are as follows:[50][51] João Miguel Leandro is Chief Executive Office, and Clotilde Delbos, Chairman of the Board).

[52] On 24 March 2010, Diac and Renault F1 signed a sponsorship agreement which lasted from the Australian to the Monaco Grand Prix of that year.