SAN FRANCISCO — Perhaps it should not have surprised corporate information technology departments that employees would use Dropbox, a service for easily sharing files among different devices by storing them in “the cloud.” But that did not mean they loved the idea of confidential files on a service they could not control.

Now Dropbox is trying to appease them by selling a service for businesses, Dropbox for Teams, introduced Thursday.

Add Dropbox to the list of consumer technologies that have infiltrated the workplace, like iPhones, Gmail and Skype.

“With the ability of people to get what they want to get done with stuff they pay for themselves, the whole role of I.T. changes,” said Ted Schadler, a workplace analyst at Forrester Research. Still, the service has a way to go before large companies adopt it, Mr. Schadler said, “because it doesn’t have as much security and administration as they want.”