Dropbox was founded in 2007 by Drew Houston and Arash Ferdowsi after Houston forgot his USB drive on a bus from Boston to New York and began coding a file-sync tool on the trip. In FY2025 the company reported $2.521 billion of revenue, $508.4 million of net income and $1.016 billion of unlevered free cash flow.
Y Combinator and viral growth
Houston joined Y Combinator's summer 2007 batch after recruiting Ferdowsi as co-founder. A short demo video on Hacker News and Digg in 2008 grew the beta waitlist from about 5,000 to 75,000 people. A referral program that rewarded both sides with extra storage kept growth compounding with little paid marketing.
Saying no to Steve Jobs
In 2009 Steve Jobs tried to buy Dropbox. When Houston declined, Jobs reportedly called Dropbox "a feature, not a product." Apple launched iCloud, Google launched Drive and Microsoft expanded OneDrive, all bundled with larger ecosystems.
From consumers to paying teams
Dropbox passed 500 million registered users by 2016, but most never paid. It focused on professionals and teams, moved most data from Amazon S3 to its own Magic Pocket infrastructure, and went public on Nasdaq in March 2018. It added Dropbox Sign (HelloSign, 2019) and DocSend (2021) to expand into document workflows.
The AI chapter
Since 2023 Dropbox has bet on Dash, an AI search tool across connected apps. In May 2026 Houston named Ashraf Alkarmi co-CEO and plans to become executive chairman. In Q2 2026 Dropbox reported $631.5 million in revenue and 18.19 million paying users, its third straight quarter of paying-user growth.