Banrisul is a Brazilian bank founded in 1928, headquartered in Porto Alegre, Rio Grande do Sul. It offers various financial products and services, including credit cards, loans, insurance, and investment services.
It is likely that the Banrisul logo uses Avenir Black as its font, which was created by Adrian Frutiger. Avenir is a geometric sans serif font that draws inspiration from two other similar fonts, Erbar and Futura. Further information about this font can be viewed here.