Starting in 2000, Denis presided over the destiny of Doisy-Daëne. Simultaneously he was professor at the Oenology faculty in Bordeaux as well as becoming an internationally famous Consulting oenologist. His sons Fabrice and Jean Jacques came on board in 2004. After his untimely death in 2016, his sons, fourth Dubourdieu generation on Doisy-Daëne, have continued the family project.