Houston along with fellow MIT graduate and close friend Arash Ferdowsi, founded Dropbox in 2007. Securing $15,000 from start-up funding firm, Y Combinator, Dropbox was officially launched a year later at TechCrunch50, an annual technology conference. Since its official launch, Dropbox has been hailed as one of the most successful start-ups in Silicon Valley. The San Francisco-based company is so successful, as it has rapidly gained popularity worldwide especially in United Kingdom, Germany and United States. Today more than 500 million people use Dropbox worldwide. Users of Dropbox can store documents, photos and even videos and share or access them easily. Dropbox went public in March 2018 and quickly achieved a market cap of $30 billion. At that level, Drew Houston’s net worth was $3 billion.