The Salesforce Ventures-backed file storage service has some 500 million users and was valued at $10bn as of 2014.

US-based file storage platform Dropbox has confidentially filed for an initial public offering that would enable enterprise software producer Salesforce to exit, Bloomberg reported yesterday, citing people familiar with the matter.

Goldman Sachs and JPMorgan Chase have been selected to lead the underwriting, and Dropbox is in talks with other banks to join them, the sources said.

Founded in 2007, Dropbox operates a cloud-based storage platform with more than 500 million users, 200,000 of which are businesses, and is increasingly…