Sebastian Langeveld is a former Dutch professional road racing cyclist, who last rode for UCI WorldTeam EF Education–EasyPost where he is now a sports director.

EF Education–EasyPost, is an American professional cycling team. Founded in 2003, they have competed in the UCI World Tour since 2009. Headquartered in Boulder, Colorado, United States, the team maintains an equipment and training facility in Girona, Catalonia, Spain. In 2018, EF Education First, an international education company — founded in Sweden but headquartered and incorporated in Switzerland — purchased a controlling equity stake in Slipstream Sports, the sports management company behind the team. The founder and CEO is American Jonathan Vaughters and the head sporting director is Briton Charly Wegelius.