Prosecutors said that Uber is suspected of breaching a Dutch taxi law with its UberPOP app that allows passengers to solicit rides from drivers who are not registered taxi drivers.
A Dutch court ruled last year that the UberPOP service was illegal. Uber, which has tens of thousands of Dutch users, has appealed that ruling.
In a reaction to yesterday's raid, Uber spokesman Gareth Mead says the company "will of course continue to cooperate with the Dutch authorities on this ongoing investigation into UberPOP," but adds that the company disputes the allegations of wrongdoing.