Climber Thibaut Pinot and sprint specialist Arnaud Demare have both signed contract extensions with their Groupama-FDJ team through until 2023.
Pinot and Demare were joined by David Gaudu and Stefan Küng in putting pen to paper, the team announced on Thursday.
"Benefiting from long-term visibility, unprecedented in the professional cycling landscape, the team is already focused on its new sporting objectives, including winning a Grand Tour," said team director Marc Madiot.
"As a first important step towards its ambition, the team will be able to count for the next three seasons (2021, 2022 and 2023) on four of its emblematic riders who are coming to the end of their contracts."
The World Tour season, suspended since mid-March because of the coronavirus pandemic, is scheduled to resume in early August, with the Tour de France set to start on 29 August, despite the French government's ban on professional sport until September.