Founded in 1945, the club plays in the Campeonato Capixaba and in the Campeonato Brasileiro Série D, holding home matches at the Estádio Olímpio Perim, with a capacity of 2,100 people.

[1] Founded on 29 June 1945 by a group of friends, Rio Branco only started to play professionally in 1993, winning the second division of the Campeonato Capixaba.

In 1995, in their second season in the first division, the club reached the finals but lost to Linhares.

[2] In 1999, after suffering relegation, Rio Branco ceased first team activities, but kept their youth categories; the main squad only returned to the competitions in 2016, in the second division.

[4] In their return to the first division, Rio Branco was knocked out in the semifinals in 2018 and in the quarterfinals in 2019, before lifting the trophy for the first time in 2020.