Koen Bouwman will also drive for Jumbo-Visma in the coming years.
The 27-year-old rider extended his contract with the Dutch team on Tuesday during the first rest day of the Giro d'Italia by three years until 2024.
Bouwman, who has been driving for Jumbo-Visma since 2016, is currently showing himself from the front in the Giro.
He took a shot at the stage victory on Sunday, but was then surpassed in the final by Egan Bernal.
After the first week and a half in Italy, Bouwman is the best Dutchman in thirtieth place.
He admits more than eleven minutes to Bernal, who crowned his stage victory on Sunday by conquering the pink jersey.
De Gelderlander is in his sixth big round on behalf of Jumbo-Visma and is there for the fourth time in a row in the Giro, where he had to give up last year and previously finished 50th and 41st.
Bouwman is not the first Jumbo-Visma rider to extend his contract this year.
The Dutch team previously recorded Steven Kruijswijk, Wout van Aert, Sepp Kuss, Robert Gesink and Jos van Emden, among others.
The Giro will last until next Sunday.
After the rest day, the peloton awaits a hilly ride over 162 kilometers between Perugia and Montalcino on Wednesday.