Castorama was a French professional cycling team that existed from 1990 to 1995 and was sponsored by the French DIY and home improvement retailer Castorama.

Grand Prix d'Isbergues is a professional cycle road race held in Isbergues, Pas-de-Calais. Since 2005, the race has been organised as a 1.1 event on the UCI Europe Tour. A women's race was added in 20