I'd be interested to know exactly how much revenue Dropbox has at the moment. I know they have plenty of paying customers, including many of us here, but there's an order of magnitude more customers with free accounts. Does anyone know how Dropbox' revenue stands right now? Are they actually profitable yet?
You're not going to find accurate answers to questions about bottom-line numbers of a privately held company by asking in a public forum.
What is publicly known is that Dropbox passed 4 million users a year ago (http://blog.dropbox.com/?p=339), and that according to Crunchbase they have not raised any outside funding since 2008. Infer from that what you will.
Typical conversion rate is 1-2%. That's at least 40,000 paying customers. At $10/mo (that's the maximum revenue per subscriber) that's $400,000 a month, or $4.8M a year. The key here is they are a growing, revenue-generating company.
Considering that Facebook has like 500m users, yet doesn't charge any of them, and they're valued at $50B or whatever, and yet DropBox has 4m users and does bring in $10+/month from a good percentage of them, I'm going to guestimate that DropBox is profitable in at least the millions of dollars annually range. And that's a very conservative guestimate.
