The Journal had reported in January that Spotify was working with Goldman Sachs for a private fundraising, which could likely put off an initial public offering for a year. Spotify, which had 15 million subscribers and 60 million active users at the end of 2014, raised speculation of an IPO in August after re-advertising a job for a regulatory filings expert. The company, founded in 2006 by Daniel Ek and Martin Lorentzon, streams music for free and provides the service ad-free for paying customers.