The economic prosperity of the Biturige is alluded to in several passages of Caesar's text. It was a "very fertile region" with an abundance of forage and supplies for both men and horses. After the fall of Avaricum, the Romans found a "great abundance of corn and other provisions", a statement which takes on a measure of import when considered with the fact that the town had been under siege for the best part of a month and that within its walls lived a population Caesar estimated to be around 40,000.

However, the Bituriges drew their main wealth from iron working. Archaeological data and texts concerning the Biturige talents for metal working derive mainly from the Gallo-Roman period, but one can assume that it was through their skills in the craft that the Biturige gained their power and commercial relations with the Mediterranean world during the Iron Age.